octave-nkf: liboctave/Array.cc annotate

annotate liboctave/Array.cc @ 8563:3a3421a9f0bb

optimize resizable indexing with scalars

author	Jaroslav Hajek <highegg@gmail.com>
date	Thu, 22 Jan 2009 13:26:04 +0100
parents	6b074f37e8d7
children	188d38a553c7

rev	line source
1993 1b57120c997b [project @ 1996-03-03 01:16:15 by jwe] jwe parents: 1989 diff changeset	1 // Template array classes
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2 /*
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	3
7017 a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	4 Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2002, 2003, 2004,
a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	5 2005, 2006, 2007 John W. Eaton
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	6 Copyright (C) 2008, 2009 Jaroslav Hajek <highegg@gmail.com>
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	7
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	8 This file is part of Octave.
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	9
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	10 Octave is free software; you can redistribute it and/or modify it
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	11 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6922 diff changeset	12 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6922 diff changeset	13 option) any later version.
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	14
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	15 Octave is distributed in the hope that it will be useful, but WITHOUT
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	18 for more details.
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	19
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	20 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6922 diff changeset	21 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6922 diff changeset	22 <http://www.gnu.org/licenses/>.
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	23
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	24 */
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	25
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	26 #ifdef HAVE_CONFIG_H
1192 b6360f2d4fa6 [project @ 1995-03-30 21:38:35 by jwe] jwe parents: 1011 diff changeset	27 #include <config.h>
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	28 #endif
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	29
1367 9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1360 diff changeset	30 #include <cassert>
4518 382cb0ed8c14 [project @ 2003-09-20 18:08:40 by jwe] jwe parents: 4517 diff changeset	31 #include <climits>
449 3cef0ce5dd7d [project @ 1994-06-05 21:58:52 by jwe] jwe parents: 386 diff changeset	32
3503 d14c483b3c12 [project @ 2000-02-01 04:06:07 by jwe] jwe parents: 2847 diff changeset	33 #include <iostream>
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	34 #include <sstream>
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	35 #include <vector>
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	36 #include <algorithm>
6674 e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	37 #include <new>
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1550 diff changeset	38
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	39 #include "Array.h"
4588 19bfd295f400 [project @ 2003-11-10 17:18:48 by jwe] jwe parents: 4587 diff changeset	40 #include "Array-util.h"
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1550 diff changeset	41 #include "idx-vector.h"
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1550 diff changeset	42 #include "lo-error.h"
8377 25bc2d31e1bf improve OCTAVE_LOCAL_BUFFER Jaroslav Hajek <highegg@gmail.com> parents: 8333 diff changeset	43 #include "oct-locbuf.h"
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1550 diff changeset	44
1360 7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	45 // One dimensional array class. Handles the reference counting for
7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	46 // all the derived classes.
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	47
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	48 template <class T>
8524 937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	49 void
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	50 Array<T>::make_unique (void)
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	51 {
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	52 if (rep->count > 1)
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	53 {
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	54 --rep->count;
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	55 rep = new ArrayRep (slice_data, slice_len, true);
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	56 slice_data = rep->data;
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	57 }
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	58 else if (slice_len != rep->len)
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	59 {
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	60 // Possibly economize here.
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	61 ArrayRep *new_rep = new ArrayRep (slice_data, slice_len, true);
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	62 delete rep;
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	63 rep = new_rep;
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	64 slice_data = rep->data;
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	65 }
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	66 }
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	67
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	68 template <class T>
4834 8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	69 Array<T>::Array (const Array<T>& a, const dim_vector& dv)
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	70 : rep (a.rep), dimensions (dv),
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	71 slice_data (a.slice_data), slice_len (a.slice_len)
4834 8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	72 {
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	73 rep->count++;
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	74
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	75 if (a.numel () < dv.numel ())
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	76 (*current_liboctave_error_handler)
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	77 ("Array::Array (const Array&, const dim_vector&): dimension mismatch");
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	78 }
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	79
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	80 template <class T>
1619 1a35c8c91349 [project @ 1995-11-04 11:07:21 by jwe] jwe parents: 1574 diff changeset	81 Array<T>::~Array (void)
1a35c8c91349 [project @ 1995-11-04 11:07:21 by jwe] jwe parents: 1574 diff changeset	82 {
1a35c8c91349 [project @ 1995-11-04 11:07:21 by jwe] jwe parents: 1574 diff changeset	83 if (--rep->count <= 0)
1a35c8c91349 [project @ 1995-11-04 11:07:21 by jwe] jwe parents: 1574 diff changeset	84 delete rep;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	85 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	86
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	87 template <class T>
7717 ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	88 Array<T>&
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	89 Array<T>::operator = (const Array<T>& a)
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	90 {
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	91 if (this != &a)
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	92 {
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	93 if (--rep->count <= 0)
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	94 delete rep;
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	95
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	96 rep = a.rep;
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	97 rep->count++;
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	98
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	99 dimensions = a.dimensions;
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	100 slice_data = a.slice_data;
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	101 slice_len = a.slice_len;
7717 ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	102 }
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	103
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	104 return *this;
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	105 }
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	106
ff918ee1a983 Delete idx in Sparse<T> and Array<T> operator = David Bateman <dbateman@free.fr> parents: 7646 diff changeset	107 template <class T>
8524 937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	108 void
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	109 Array<T>::fill (const T& val)
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	110 {
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	111 if (rep->count > 1)
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	112 {
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	113 --rep->count;
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	114 rep = new ArrayRep (length (), val);
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	115 slice_data = rep->data;
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	116 }
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	117 else
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	118 std::fill (slice_data, slice_data + slice_len, val);
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	119 }
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	120
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	121 template <class T>
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	122 Array<T>
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	123 Array<T>::squeeze (void) const
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	124 {
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	125 Array<T> retval = *this;
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	126
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	127 if (ndims () > 2)
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	128 {
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	129 bool dims_changed = false;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	130
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	131 dim_vector new_dimensions = dimensions;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	132
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	133 int k = 0;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	134
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	135 for (int i = 0; i < ndims (); i++)
4759 364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	136 {
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	137 if (dimensions(i) == 1)
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	138 dims_changed = true;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	139 else
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	140 new_dimensions(k++) = dimensions(i);
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	141 }
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	142
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	143 if (dims_changed)
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	144 {
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	145 switch (k)
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	146 {
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	147 case 0:
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	148 new_dimensions = dim_vector (1, 1);
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	149 break;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	150
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	151 case 1:
4759 364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	152 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	153 octave_idx_type tmp = new_dimensions(0);
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	154
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	155 new_dimensions.resize (2);
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	156
4759 364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	157 new_dimensions(0) = tmp;
364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	158 new_dimensions(1) = 1;
364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	159 }
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	160 break;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	161
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	162 default:
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	163 new_dimensions.resize (k);
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	164 break;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	165 }
4759 364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	166 }
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	167
8524 937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	168 retval = Array<T> (*this, new_dimensions);
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	169 }
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	170
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	171 return retval;
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	172 }
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	173
6674 e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	174 // KLUGE
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	175
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	176 // The following get_size functions will throw a std::bad_alloc ()
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	177 // exception if the requested size is larger than can be indexed by
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	178 // octave_idx_type. This may be smaller than the actual amount of
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	179 // memory that can be safely allocated on a system. However, if we
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	180 // don't fail here, we can end up with a mysterious crash inside a
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	181 // function that is iterating over an array using octave_idx_type
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	182 // indices.
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	183
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	184 // A guess (should be quite conservative).
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	185 #define MALLOC_OVERHEAD 1024
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	186
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	187 template <class T>
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	188 octave_idx_type
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	189 Array<T>::get_size (octave_idx_type r, octave_idx_type c)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	190 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	191 static int nl;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	192 static double dl
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	193 = frexp (static_cast<double>
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	194 (std::numeric_limits<octave_idx_type>::max() - MALLOC_OVERHEAD) / sizeof (T), &nl);
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	195
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	196 int nr, nc;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	197 double dr = frexp (static_cast<double> (r), &nr); // r = dr * 2^nr
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	198 double dc = frexp (static_cast<double> (c), &nc); // c = dc * 2^nc
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	199
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	200 int nt = nr + nc;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	201 double dt = dr * dc;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	202
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	203 if (dt < 0.5)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	204 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	205 nt--;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	206 dt *= 2;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	207 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	208
6674 e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	209 if (nt < nl \|\| (nt == nl && dt < dl))
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	210 return r * c;
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	211 else
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	212 {
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	213 throw std::bad_alloc ();
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	214 return 0;
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	215 }
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	216 }
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	217
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	218 template <class T>
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	219 octave_idx_type
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	220 Array<T>::get_size (octave_idx_type r, octave_idx_type c, octave_idx_type p)
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	221 {
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	222 static int nl;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	223 static double dl
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	224 = frexp (static_cast<double>
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	225 (std::numeric_limits<octave_idx_type>::max() - MALLOC_OVERHEAD) / sizeof (T), &nl);
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	226
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	227 int nr, nc, np;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	228 double dr = frexp (static_cast<double> (r), &nr);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	229 double dc = frexp (static_cast<double> (c), &nc);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	230 double dp = frexp (static_cast<double> (p), &np);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	231
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	232 int nt = nr + nc + np;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	233 double dt = dr * dc * dp;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	234
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	235 if (dt < 0.5)
659 fe75d98598d6 [project @ 1994-08-29 21:23:06 by jwe] jwe parents: 645 diff changeset	236 {
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	237 nt--;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	238 dt *= 2;
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	239
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	240 if (dt < 0.5)
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	241 {
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	242 nt--;
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	243 dt *= 2;
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	244 }
659 fe75d98598d6 [project @ 1994-08-29 21:23:06 by jwe] jwe parents: 645 diff changeset	245 }
1619 1a35c8c91349 [project @ 1995-11-04 11:07:21 by jwe] jwe parents: 1574 diff changeset	246
6674 e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	247 if (nt < nl \|\| (nt == nl && dt < dl))
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	248 return r * c * p;
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	249 else
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	250 {
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	251 throw std::bad_alloc ();
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	252 return 0;
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	253 }
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	254 }
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	255
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	256 template <class T>
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	257 octave_idx_type
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	258 Array<T>::get_size (const dim_vector& ra_idx)
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	259 {
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	260 static int nl;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	261 static double dl
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	262 = frexp (static_cast<double>
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	263 (std::numeric_limits<octave_idx_type>::max() - MALLOC_OVERHEAD) / sizeof (T), &nl);
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	264
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	265 int n = ra_idx.length ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	266
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	267 int nt = 0;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	268 double dt = 1;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	269
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	270 for (int i = 0; i < n; i++)
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	271 {
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	272 int nra_idx;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	273 double dra_idx = frexp (static_cast<double> (ra_idx(i)), &nra_idx);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	274
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	275 nt += nra_idx;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	276 dt *= dra_idx;
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	277
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	278 if (dt < 0.5)
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	279 {
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	280 nt--;
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	281 dt *= 2;
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	282 }
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	283 }
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	284
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	285 if (nt < nl \|\| (nt == nl && dt < dl))
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	286 {
6674 e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	287 octave_idx_type retval = 1;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	288
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	289 for (int i = 0; i < n; i++)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	290 retval *= ra_idx(i);
6674 e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	291
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	292 return retval;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	293 }
6674 e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	294 else
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	295 {
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	296 throw std::bad_alloc ();
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	297 return 0;
e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	298 }
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	299 }
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	300
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	301 #undef MALLOC_OVERHEAD
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	302
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	303 template <class T>
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	304 octave_idx_type
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	305 Array<T>::compute_index (const Array<octave_idx_type>& ra_idx) const
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	306 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	307 octave_idx_type retval = -1;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	308
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	309 int n = dimensions.length ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	310
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	311 if (n > 0 && n == ra_idx.length ())
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	312 {
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	313 retval = ra_idx(--n);
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	314
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	315 while (--n >= 0)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	316 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	317 retval *= dimensions(n);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	318 retval += ra_idx(n);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	319 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	320 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	321 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	322 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	323 ("Array<T>::compute_index: invalid ra_idxing operation");
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	324
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	325 return retval;
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	326 }
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	327
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	328 template <class T>
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	329 T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	330 Array<T>::range_error (const char *fcn, octave_idx_type n) const
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	331 {
2109 356f70c8fcbd [project @ 1996-04-30 12:31:30 by jwe] jwe parents: 2049 diff changeset	332 (*current_liboctave_error_handler) ("%s (%d): range error", fcn, n);
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	333 return T ();
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	334 }
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	335
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	336 template <class T>
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	337 T&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	338 Array<T>::range_error (const char *fcn, octave_idx_type n)
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	339 {
2109 356f70c8fcbd [project @ 1996-04-30 12:31:30 by jwe] jwe parents: 2049 diff changeset	340 (*current_liboctave_error_handler) ("%s (%d): range error", fcn, n);
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	341 static T foo;
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	342 return foo;
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	343 }
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	344
3933 f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	345 template <class T>
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	346 T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	347 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	348 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	349 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	350 ("%s (%d, %d): range error", fcn, i, j);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	351 return T ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	352 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	353
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	354 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	355 T&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	356 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	357 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	358 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	359 ("%s (%d, %d): range error", fcn, i, j);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	360 static T foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	361 return foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	362 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	363
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	364 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	365 T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	366 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j, octave_idx_type k) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	367 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	368 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	369 ("%s (%d, %d, %d): range error", fcn, i, j, k);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	370 return T ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	371 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	372
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	373 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	374 T&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	375 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j, octave_idx_type k)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	376 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	377 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	378 ("%s (%d, %d, %d): range error", fcn, i, j, k);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	379 static T foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	380 return foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	381 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	382
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	383 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	384 T
6867 83619ae96c1d [project @ 2007-09-06 12:08:44 by dbateman] dbateman parents: 6674 diff changeset	385 Array<T>::range_error (const char *fcn, const Array<octave_idx_type>& ra_idx) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	386 {
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	387 std::ostringstream buf;
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	388
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	389 buf << fcn << " (";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	390
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	391 octave_idx_type n = ra_idx.length ();
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	392
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	393 if (n > 0)
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	394 buf << ra_idx(0);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	395
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	396 for (octave_idx_type i = 1; i < n; i++)
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	397 buf << ", " << ra_idx(i);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	398
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	399 buf << "): range error";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	400
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	401 std::string buf_str = buf.str ();
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	402
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	403 (*current_liboctave_error_handler) (buf_str.c_str ());
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	404
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	405 return T ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	406 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	407
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	408 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	409 T&
6867 83619ae96c1d [project @ 2007-09-06 12:08:44 by dbateman] dbateman parents: 6674 diff changeset	410 Array<T>::range_error (const char *fcn, const Array<octave_idx_type>& ra_idx)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	411 {
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	412 std::ostringstream buf;
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	413
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	414 buf << fcn << " (";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	415
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	416 octave_idx_type n = ra_idx.length ();
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	417
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	418 if (n > 0)
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	419 buf << ra_idx(0);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	420
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	421 for (octave_idx_type i = 1; i < n; i++)
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	422 buf << ", " << ra_idx(i);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	423
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	424 buf << "): range error";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	425
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	426 std::string buf_str = buf.str ();
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	427
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	428 (*current_liboctave_error_handler) (buf_str.c_str ());
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	429
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	430 static T foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	431 return foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	432 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	433
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	434 template <class T>
4567 fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	435 Array<T>
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	436 Array<T>::reshape (const dim_vector& new_dims) const
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	437 {
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	438 Array<T> retval;
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	439
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	440 if (dimensions != new_dims)
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	441 {
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	442 if (dimensions.numel () == new_dims.numel ())
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	443 retval = Array<T> (*this, new_dims);
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	444 else
8527 6b074f37e8d7 reshape: improve error message John W. Eaton <jwe@octave.org> parents: 8526 diff changeset	445 {
6b074f37e8d7 reshape: improve error message John W. Eaton <jwe@octave.org> parents: 8526 diff changeset	446 std::string dimensions_str = dimensions.str ();
6b074f37e8d7 reshape: improve error message John W. Eaton <jwe@octave.org> parents: 8526 diff changeset	447 std::string new_dims_str = new_dims.str ();
6b074f37e8d7 reshape: improve error message John W. Eaton <jwe@octave.org> parents: 8526 diff changeset	448
6b074f37e8d7 reshape: improve error message John W. Eaton <jwe@octave.org> parents: 8526 diff changeset	449 (*current_liboctave_error_handler)
6b074f37e8d7 reshape: improve error message John W. Eaton <jwe@octave.org> parents: 8526 diff changeset	450 ("reshape: can't reshape %s array to %s array",
6b074f37e8d7 reshape: improve error message John W. Eaton <jwe@octave.org> parents: 8526 diff changeset	451 dimensions_str.c_str (), new_dims_str.c_str ());
6b074f37e8d7 reshape: improve error message John W. Eaton <jwe@octave.org> parents: 8526 diff changeset	452 }
4567 fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	453 }
4916 c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: 4915 diff changeset	454 else
c45f14873b5e [project @ 2004-07-26 14:35:12 by jwe] jwe parents: 4915 diff changeset	455 retval = *this;
4567 fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	456
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	457 return retval;
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	458 }
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	459
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	460 // Helper class for multi-d dimension permuting (generalized transpose).
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	461 class rec_permute_helper
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	462 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	463 octave_idx_type dim, stride;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	464 int top;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	465
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	466 public:
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	467 rec_permute_helper (const dim_vector& dv, const Array<octave_idx_type>& perm)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	468 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	469 int n = dv.length ();
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	470 assert (n == perm.length ());
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	471
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	472 dim = new octave_idx_type [2*n];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	473 // A hack to avoid double allocation
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	474 stride = dim + n;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	475 top = 0;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	476
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	477 // Get cumulative dimensions.
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	478 OCTAVE_LOCAL_BUFFER (octave_idx_type, cdim, n+1);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	479 cdim[0] = 1;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	480 for (int i = 1; i < n+1; i++) cdim[i] = cdim[i-1] * dv(i-1);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	481
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	482 int k = 0;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	483 // Reduce leading identity
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	484 for (; k < n && perm(k) == k; k++) ;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	485 if (k > 0)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	486 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	487 dim[0] = cdim[k];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	488 stride[0] = 1;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	489 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	490 else
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	491 top = -1;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	492
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	493 // Setup the permuted strides.
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	494 for (; k < n; k++)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	495 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	496 ++top;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	497 int kk = perm(k);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	498 dim[top] = dv(kk);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	499 stride[top] = cdim[kk];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	500 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	501
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	502 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	503
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	504 ~rec_permute_helper (void) { delete [] dim; }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	505
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	506 private:
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	507
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	508 // Recursive N-d generalized transpose
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	509 template <class T>
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	510 T do_permute (const T src, T *dest, int lev) const
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	511 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	512 if (lev == 0)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	513 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	514 octave_idx_type step = stride[0], len = dim[0];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	515 if (step == 1)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	516 dest = std::copy (src, src + len, dest);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	517 else
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	518 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	519 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	520 dest[i] = src[j];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	521
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	522 dest += len;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	523 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	524
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	525 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	526 else
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	527 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	528 octave_idx_type step = stride[lev], len = dim[lev];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	529 for (octave_idx_type i = 0, j = 0; i < len; i++, j+= step)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	530 dest = do_permute (src + i * step, dest, lev-1);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	531 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	532
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	533 return dest;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	534 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	535
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	536 public:
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	537
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	538 template <class T>
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	539 void permute (const T src, T dest) const { do_permute (src, dest, top); }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	540
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	541 };
7241 da540e715d05 [project @ 2007-12-03 22:55:20 by jwe] jwe parents: 7189 diff changeset	542
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	543
4567 fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	544 template <class T>
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	545 Array<T>
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	546 Array<T>::permute (const Array<octave_idx_type>& perm_vec_arg, bool inv) const
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	547 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	548 Array<T> retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	549
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	550 Array<octave_idx_type> perm_vec = perm_vec_arg;
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	551
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	552 dim_vector dv = dims ();
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	553 dim_vector dv_new;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	554
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	555 int perm_vec_len = perm_vec_arg.length ();
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	556
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	557 if (perm_vec_len < dv.length ())
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	558 (*current_liboctave_error_handler)
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	559 ("%s: invalid permutation vector", inv ? "ipermute" : "permute");
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	560
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	561 dv_new.resize (perm_vec_len);
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	562
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	563 // Append singleton dimensions as needed.
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	564 dv.resize (perm_vec_len, 1);
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	565
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	566 // Need this array to check for identical elements in permutation array.
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	567 OCTAVE_LOCAL_BUFFER_INIT (bool, checked, perm_vec_len, false);
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	568
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	569 // Find dimension vector of permuted array.
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	570 for (int i = 0; i < perm_vec_len; i++)
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	571 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	572 octave_idx_type perm_elt = perm_vec.elem (i);
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	573 if (perm_elt >= perm_vec_len \|\| perm_elt < 0)
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	574 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	575 (*current_liboctave_error_handler)
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	576 ("%s: permutation vector contains an invalid element",
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	577 inv ? "ipermute" : "permute");
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	578
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	579 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	580 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	581
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	582 if (checked[perm_elt])
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	583 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	584 (*current_liboctave_error_handler)
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	585 ("%s: permutation vector cannot contain identical elements",
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	586 inv ? "ipermute" : "permute");
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	587
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	588 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	589 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	590 else
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	591 checked[perm_elt] = true;
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	592
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	593 dv_new(i) = dv(perm_elt);
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	594 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	595
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	596 if (inv)
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	597 {
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	598 for (int i = 0; i < perm_vec_len; i++)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	599 perm_vec(perm_vec_arg(i)) = i;
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	600 }
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	601
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	602 retval = Array<T> (dv_new);
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	603
5940 0dd8428bb260 [project @ 2006-08-18 17:50:23 by jwe] jwe parents: 5837 diff changeset	604 if (numel () > 0)
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	605 {
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	606 rec_permute_helper rh (dv, perm_vec);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	607 rh.permute (data (), retval.fortran_vec ());
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	608 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	609
5340 15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5338 diff changeset	610 retval.chop_trailing_singletons ();
5338 c4b55d47122e [project @ 2005-05-05 17:28:51 by jwe] jwe parents: 5307 diff changeset	611
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	612 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	613 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	614
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	615 // Helper class for multi-d index reduction and recursive indexing/indexed assignment.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	616 // Rationale: we could avoid recursion using a state machine instead. However, using
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	617 // recursion is much more amenable to possible parallelization in the future.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	618 // Also, the recursion solution is cleaner and more understandable.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	619 class rec_index_helper
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	620 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	621 octave_idx_type dim, cdim;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	622 idx_vector *idx;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	623 int top;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	624
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	625 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	626 rec_index_helper (const dim_vector& dv, const Array<idx_vector>& ia)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	627 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	628 int n = ia.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	629 assert (n > 0 && (dv.length () == std::max (n, 2)));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	630
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	631 dim = new octave_idx_type [2*n];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	632 // A hack to avoid double allocation
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	633 cdim = dim + n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	634 idx = new idx_vector [n];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	635 top = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	636
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	637 dim[0] = dv(0);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	638 cdim[0] = 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	639 idx[0] = ia(0);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	640
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	641 for (int i = 1; i < n; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	642 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	643 // Try reduction...
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	644 if (idx[top].maybe_reduce (dim[top], ia(i), dv(i)))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	645 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	646 // Reduction successful, fold dimensions.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	647 dim[top] *= dv(i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	648 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	649 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	650 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	651 // Unsuccessful, store index & cumulative dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	652 top++;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	653 idx[top] = ia(i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	654 dim[top] = dv(i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	655 cdim[top] = cdim[top-1] * dim[top-1];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	656 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	657 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	658 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	659
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	660 ~rec_index_helper (void) { delete [] idx; delete [] dim; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	661
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	662 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	663
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	664 // Recursive N-d indexing
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	665 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	666 T do_index (const T src, T *dest, int lev) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	667 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	668 if (lev == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	669 dest += idx[0].index (src, dim[0], dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	670 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	671 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	672 octave_idx_type n = idx[lev].length (dim[lev]), d = cdim[lev];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	673 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	674 dest = do_index (src + d*idx[lev].xelem (i), dest, lev-1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	675 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	676
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	677 return dest;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	678 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	679
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	680 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	681 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	682 const T do_assign (const T src, T *dest, int lev) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	683 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	684 if (lev == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	685 src += idx[0].assign (src, dim[0], dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	686 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	687 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	688 octave_idx_type n = idx[lev].length (dim[lev]), d = cdim[lev];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	689 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	690 src = do_assign (src, dest + d*idx[lev].xelem (i), lev-1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	691 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	692
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	693 return src;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	694 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	695
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	696 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	697 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	698 void do_fill (const T& val, T *dest, int lev) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	699 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	700 if (lev == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	701 idx[0].fill (val, dim[0], dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	702 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	703 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	704 octave_idx_type n = idx[lev].length (dim[lev]), d = cdim[lev];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	705 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	706 do_fill (val, dest + d*idx[lev].xelem (i), lev-1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	707 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	708 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	709
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	710 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	711
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	712 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	713 void index (const T src, T dest) const { do_index (src, dest, top); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	714
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	715 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	716 void assign (const T src, T dest) const { do_assign (src, dest, top); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	717
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	718 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	719 void fill (const T& val, T *dest) const { do_fill (val, dest, top); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	720
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	721 bool is_cont_range (octave_idx_type& l,
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	722 octave_idx_type& u) const
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	723 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	724 return top == 0 && idx[0].is_cont_range (dim[0], l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	725 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	726 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	727
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	728 // Helper class for multi-d recursive resizing
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	729 // This handles resize () in an efficient manner, touching memory only
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	730 // once (apart from reinitialization)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	731 class rec_resize_helper
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	732 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	733 octave_idx_type cext, sext, *dext;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	734 int n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	735
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	736 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	737 rec_resize_helper (const dim_vector& ndv, const dim_vector& odv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	738 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	739 int l = ndv.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	740 assert (odv.length () == l);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	741 octave_idx_type ld = 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	742 int i = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	743 for (; i < l-1 && ndv(i) == odv(i); i++) ld *= ndv(i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	744 n = l - i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	745 cext = new octave_idx_type[3*n];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	746 // Trick to avoid three allocations
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	747 sext = cext + n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	748 dext = sext + n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	749
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	750 octave_idx_type sld = ld, dld = ld;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	751 for (int j = 0; j < n; j++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	752 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	753 cext[j] = std::min (ndv(i+j), odv(i+j));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	754 sext[j] = sld *= odv(i+j);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	755 dext[j] = dld *= ndv(i+j);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	756 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	757 cext[0] *= ld;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	758 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	759
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	760 ~rec_resize_helper (void) { delete [] cext; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	761
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	762 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	763 // recursive resizing
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	764 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	765 void do_resize_fill (const T* src, T *dest, const T& rfv, int lev) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	766 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	767 if (lev == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	768 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	769 T* destc = std::copy (src, src + cext[0], dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	770 std::fill (destc, dest + dext[0], rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	771 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	772 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	773 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	774 octave_idx_type sd = sext[lev-1], dd = dext[lev-1], k;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	775 for (k = 0; k < cext[lev]; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	776 do_resize_fill (src + k * sd, dest + k * dd, rfv, lev - 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	777
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	778 std::fill (dest + k * dd, dest + dext[lev], rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	779 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	780 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	781 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	782 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	783 void resize_fill (const T* src, T *dest, const T& rfv) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	784 { do_resize_fill (src, dest, rfv, n-1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	785
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	786 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	787
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	788 static void gripe_index_out_of_range (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	789 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	790 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	791 ("A(I): Index exceeds matrix dimension.");
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	792 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	793
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	794 template <class T>
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	795 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	796 Array<T>::index (const idx_vector& i) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	797 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	798 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	799 Array<T> retval;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	800
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	801 if (i.is_colon ())
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	802 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	803 // A(:) produces a shallow copy as a column vector.
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	804 retval = Array<T> (*this, dim_vector (n, 1));
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	805 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	806 else if (i.extent (n) != n)
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	807 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	808 gripe_index_out_of_range ();
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	809 }
820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	810 else
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	811 {
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	812 // FIXME -- this is the only place where orig_dimensions are used.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	813 dim_vector rd = i.orig_dimensions ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	814 octave_idx_type il = i.length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	815
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	816 // FIXME -- this is for Matlab compatibility. Matlab 2007 given
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	817 //
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	818 // b = ones(3,1)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	819 //
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	820 // yields the following:
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	821 //
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	822 // b(zeros(0,0)) gives []
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	823 // b(zeros(1,0)) gives zeros(0,1)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	824 // b(zeros(0,1)) gives zeros(0,1)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	825 // b(zeros(0,m)) gives zeros(0,m)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	826 // b(zeros(m,0)) gives zeros(m,0)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	827 // b(1:2) gives ones(2,1)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	828 // b(ones(2)) gives ones(2) etc.
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	829 //
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	830 // As you can see, the behaviour is weird, but the tests end up pretty
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	831 // simple. Nah, I don't want to suggest that this is ad hoc :)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	832
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	833 if (ndims () == 2 && n != 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	834 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	835 if (columns () == 1 && rd(0) == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	836 rd = dim_vector (il, 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	837 else if (rows () == 1 && rd(1) == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	838 rd = dim_vector (1, il);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	839 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	840
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	841 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	842 if (il != 0 && i.is_cont_range (n, l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	843 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	844 retval = Array<T> (*this, rd, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	845 else
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	846 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	847 // Don't use resize here to avoid useless initialization for POD
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	848 // types.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	849 retval = Array<T> (rd);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	850
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	851 if (il != 0)
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	852 i.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	853 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	854 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	855
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	856 return retval;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	857 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	858
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	859 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	860 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	861 Array<T>::index (const idx_vector& i, const idx_vector& j) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	862 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	863 // Get dimensions, allowing Fortran indexing in the 2nd dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	864 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	865 octave_idx_type r = dv(0), c = dv(1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	866 Array<T> retval;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	867
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	868 if (i.is_colon () && j.is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	869 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	870 // A(:,:) produces a shallow copy.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	871 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	872 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	873 else if (i.extent (r) != r \|\| j.extent (c) != c)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	874 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	875 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	876 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	877 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	878 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	879 octave_idx_type n = numel (), il = i.length (r), jl = j.length (c);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	880
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	881 idx_vector ii (i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	882
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	883 if (ii.maybe_reduce (r, j, c))
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	884 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	885 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	886 if (ii.length () > 0 && ii.is_cont_range (n, l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	887 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	888 retval = Array<T> (*this, dim_vector (il, jl), l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	889 else
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	890 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	891 // Don't use resize here to avoid useless initialization for POD types.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	892 retval = Array<T> (dim_vector (il, jl));
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	893
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	894 ii.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	895 }
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	896 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	897 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	898 {
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	899 // Don't use resize here to avoid useless initialization for POD types.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	900 retval = Array<T> (dim_vector (il, jl));
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	901
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	902 const T* src = data ();
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	903 T *dest = retval.fortran_vec ();
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	904
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	905 for (octave_idx_type k = 0; k < jl; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	906 dest += i.index (src + r * j.xelem (k), r, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	907 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	908 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	909
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	910 return retval;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	911 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	912
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	913 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	914 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	915 Array<T>::index (const Array<idx_vector>& ia) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	916 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	917 int ial = ia.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	918 Array<T> retval;
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4586 diff changeset	919
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	920 // FIXME: is this dispatching necessary?
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	921 if (ial == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	922 retval = index (ia(0));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	923 else if (ial == 2)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	924 retval = index (ia(0), ia(1));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	925 else if (ial > 0)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	926 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	927 // Get dimensions, allowing Fortran indexing in the last dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	928 dim_vector dv = dimensions.redim (ial);
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	929
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	930 // Check for out of bounds conditions.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	931 bool all_colons = true, mismatch = false;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	932 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	933 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	934 if (ia(i).extent (dv(i)) != dv(i))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	935 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	936 mismatch = true;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	937 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	938 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	939 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	940 all_colons = all_colons && ia(i).is_colon ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	941 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	942
4870 2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe] jwe parents: 4834 diff changeset	943
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	944 if (mismatch)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	945 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	946 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	947 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	948 else if (all_colons)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	949 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	950 // A(:,:,...,:) produces a shallow copy.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	951 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	952 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	953 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	954 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	955 // Form result dimensions.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	956 dim_vector rdv;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	957 rdv.resize (ial);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	958 for (int i = 0; i < ial; i++) rdv(i) = ia(i).length (dv(i));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	959 rdv.chop_trailing_singletons ();
4870 2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe] jwe parents: 4834 diff changeset	960
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	961 // Prepare for recursive indexing
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	962 rec_index_helper rh (dv, ia);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	963
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	964 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	965 if (rh.is_cont_range (l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	966 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	967 retval = Array<T> (*this, rdv, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	968 else
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	969 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	970 // Don't use resize here to avoid useless initialization for POD types.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	971 retval = Array<T> (rdv);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	972
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	973 // Do it.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	974 rh.index (data (), retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	975 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	976 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	977 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	978
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	979 return retval;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	980 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	981
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	982 // FIXME -- the following is a common error message to resize,
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	983 // regardless of whether it's called from assign or elsewhere. It
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	984 // seems OK to me, but eventually the gripe can be specialized.
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	985 // Anyway, propagating various error messages into procedure is, IMHO,
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	986 // a nonsense. If anything, we should change error handling here (and
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	987 // throughout liboctave) to allow custom handling of errors
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	988 static void gripe_invalid_resize (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	989 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	990 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	991 ("resize: Invalid resizing operation or ambiguous assignment to an out-of-bounds array element.");
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	992 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	993
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	994 // The default fill value. Override if you want a different one.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	995
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	996 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	997 T Array<T>::resize_fill_value ()
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	998 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	999 return T ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1000 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1001
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1002 // Yes, we could do resize using index & assign. However, that would
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1003 // possibly involve a lot more memory traffic than we actually need.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1004
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1005 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1006 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1007 Array<T>::resize_fill (octave_idx_type n, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1008 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1009 if (n >= 0 && ndims () == 2)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1010 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1011 dim_vector dv;
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1012 // This is driven by Matlab's behaviour of giving a row vector
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1013 // on some out-of-bounds assignments. Specifically, Matlab
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1014 // allows a(i) with out-of-bouds i when a is either of 0x0, 1x0,
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1015 // 1x1, 0xN, and gives a row vector in all cases (yes, even the
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1016 // last one, search me why). Giving a column vector would make
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1017 // much more sense (given the way trailing singleton dims are
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1018 // treated).
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1019 bool invalid = false;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1020 if (rows () == 0 \|\| rows () == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1021 dv = dim_vector (1, n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1022 else if (columns () == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1023 dv = dim_vector (n, 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1024 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1025 invalid = true;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1026
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1027 if (invalid)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1028 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1029 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1030 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1031 octave_idx_type nx = numel ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1032 if (n != nx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1033 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1034 Array<T> tmp = Array<T> (dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1035 T *dest = tmp.fortran_vec ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1036
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1037 octave_idx_type n0 = std::min (n, nx), n1 = n - n0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1038 dest = std::copy (data (), data () + n0, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1039 std::fill (dest, dest + n1, rfv);
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1040
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1041 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1042 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1043 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1044 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1045 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1046 gripe_invalid_resize ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1047 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1048
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1049 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1050 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1051 Array<T>::resize_fill (octave_idx_type r, octave_idx_type c, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1052 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1053 if (r >= 0 && c >= 0 && ndims () == 2)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1054 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1055 octave_idx_type rx = rows (), cx = columns ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1056 if (r != rx \|\| c != cx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1057 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1058 Array<T> tmp = Array<T> (dim_vector (r, c));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1059 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1060
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1061 octave_idx_type r0 = std::min (r, rx), r1 = r - r0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1062 octave_idx_type c0 = std::min (c, cx), c1 = c - c0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1063 const T *src = data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1064 if (r == rx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1065 dest = std::copy (src, src + r * c0, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1066 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1067 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1068 for (octave_idx_type k = 0; k < c0; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1069 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1070 dest = std::copy (src, src + r0, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1071 src += rx;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1072 std::fill (dest, dest + r1, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1073 dest += r1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1074 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1075 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1076
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1077 std::fill (dest, dest + r * c1, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1078
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1079 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1080 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1081 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1082 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1083 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1084
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1085 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1086
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1087 template<class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1088 void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1089 Array<T>::resize_fill (const dim_vector& dv, const T& rfv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1090 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1091 int dvl = dv.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1092 if (dvl == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1093 resize (dv(0), rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1094 else if (dvl == 2)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1095 resize (dv(0), dv(1), rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1096 else if (dimensions != dv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1097 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1098 if (dimensions.length () <= dvl)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1099 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1100 Array<T> tmp (dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1101 // Prepare for recursive resizing.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1102 rec_resize_helper rh (dv, dimensions.redim (dvl));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1103
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1104 // Do it.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1105 rh.resize_fill (data (), tmp.fortran_vec (), rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1106 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1107 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1108 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1109 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1110 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1111 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1112
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1113 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1114 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1115 Array<T>::index (const idx_vector& i, bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1116 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1117 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1118 if (resize_ok)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1119 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1120 octave_idx_type n = numel (), nx = i.extent (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1121 if (n != nx)
8563 3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1122 {
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1123 if (i.is_scalar ())
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1124 return Array<T> (1, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1125 else
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1126 tmp.resize_fill (nx, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1127 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1128
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1129 if (tmp.numel () != nx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1130 return Array<T> ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1131 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1132
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1133 return tmp.index (i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1134 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1135
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1136 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1137 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1138 Array<T>::index (const idx_vector& i, const idx_vector& j,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1139 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1140 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1141 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1142 if (resize_ok)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1143 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1144 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1145 octave_idx_type r = dv(0), c = dv(1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1146 octave_idx_type rx = i.extent (r), cx = j.extent (c);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1147 if (r != rx \|\| c != cx)
8563 3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1148 {
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1149 if (i.is_scalar () && j.is_scalar ())
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1150 return Array<T> (1, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1151 else
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1152 tmp.resize_fill (rx, cx, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1153 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1154
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1155 if (tmp.rows () != rx \|\| tmp.columns () != cx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1156 return Array<T> ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1157 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1158
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1159 return tmp.index (i, j);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1160 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1161
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1162 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1163 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1164 Array<T>::index (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1165 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1166 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1167 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1168 if (resize_ok)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1169 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1170 int ial = ia.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1171 dim_vector dv = dimensions.redim (ial);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1172 dim_vector dvx; dvx.resize (ial);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1173 for (int i = 0; i < ial; i++) dvx(i) = ia(i).extent (dv (i));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1174 if (! (dvx == dv))
8563 3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1175 {
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1176 bool all_scalars = true;
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1177 for (int i = 0; i < ial; i++)
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1178 all_scalars = all_scalars && ia(i).is_scalar ();
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1179 if (all_scalars)
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1180 return Array<T> (1, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1181 else
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1182 tmp.resize_fill (dvx, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1183 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1184
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1185 if (tmp.dimensions != dvx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1186 return Array<T> ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1187 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1188
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1189 return tmp.index (ia);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1190 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1191
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1192
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1193 static void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1194 gripe_invalid_assignment_size (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1195 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1196 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1197 ("A(I) = X: X must have the same size as I");
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1198 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1199
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1200 static void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1201 gripe_assignment_dimension_mismatch (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1202 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1203 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1204 ("A(I,J,...) = X: dimensions mismatch");
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1205 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1206
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1207 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1208 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1209 Array<T>::assign (const idx_vector& i, const Array<T>& rhs, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1210 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1211 octave_idx_type n = numel (), rhl = rhs.numel ();
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	1212
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1213 if (rhl == 1 \|\| i.length (n) == rhl)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1214 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1215 octave_idx_type nx = i.extent (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1216 // Try to resize first if necessary.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1217 if (nx != n)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1218 {
8390 49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 8379 diff changeset	1219 // A simple optimization. Things like A(1:N) = x will skip fill on
49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 8379 diff changeset	1220 // resizing, if A is 0x0.
49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 8379 diff changeset	1221 if (rows () == 0 && columns () == 0 && ndims () == 2
49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 8379 diff changeset	1222 && rhl == 1 && i.is_colon_equiv (nx))
49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 8379 diff changeset	1223 *this = Array<T> (dim_vector (1, nx));
49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 8379 diff changeset	1224 else
49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 8379 diff changeset	1225 resize_fill (nx, rfv);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1226 n = numel ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1227 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1228
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1229 // If the resizing was ambiguous, resize has already griped.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1230 if (nx == n)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1231 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1232 if (i.is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1233 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1234 // A(:) = X makes a full fill or a shallow copy.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1235 if (rhl == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1236 fill (rhs(0));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1237 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1238 *this = rhs.reshape (dimensions);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1239 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1240 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1241 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1242 if (rhl == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1243 i.fill (rhs(0), n, fortran_vec ());
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1244 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1245 i.assign (rhs.data (), n, fortran_vec ());
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1246 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1247 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1248 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1249 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1250 gripe_invalid_assignment_size ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1251 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1252
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1253 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1254 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1255 Array<T>::assign (const idx_vector& i, const idx_vector& j,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1256 const Array<T>& rhs, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1257 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1258 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1259 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1260 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1261 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1262 // Check for out-of-bounds and form resizing dimensions.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1263 dim_vector rdv;
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1264 // In the special when all dimensions are zero, colons are allowed
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1265 // to inquire the shape of RHS. The rules are more obscure, so we
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1266 // solve that elsewhere.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1267 if (dv.all_zero ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1268 rdv = zero_dims_inquire (i, j, rhdv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1269 else
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1270 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1271 rdv(0) = i.extent (dv(0));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1272 rdv(1) = j.extent (dv(1));
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1273 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1274
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1275 bool isfill = rhs.numel () == 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1276 octave_idx_type il = i.length (rdv(0)), jl = j.length (rdv(1));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1277 rhdv.chop_all_singletons ();
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1278 bool match = (isfill
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1279 \|\| (rhdv.length () == 2 && il == rhdv(0) && jl == rhdv(1)));
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1280 match = match \|\| (il == 1 && jl == rhdv(0) && rhdv(1) == 1);
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	1281
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1282 if (match)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1283 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1284 // Resize if requested.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1285 if (rdv != dv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1286 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1287 resize (rdv, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1288 dv = dimensions;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1289 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1290
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1291 // If the resizing was invalid, resize has already griped.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1292 if (dv == rdv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1293 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1294 if (i.is_colon () && j.is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1295 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1296 // A(:,:) = X makes a full fill or a shallow copy
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1297 if (isfill)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1298 fill (rhs(0));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1299 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1300 *this = rhs.reshape (dimensions);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1301 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1302 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1303 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1304 // The actual work.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1305 octave_idx_type n = numel (), r = rows (), c = columns ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1306 idx_vector ii (i);
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1307
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1308 const T* src = rhs.data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1309 T *dest = fortran_vec ();
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1310
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1311 // Try reduction first.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1312 if (ii.maybe_reduce (r, j, c))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1313 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1314 if (isfill)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1315 ii.fill (*src, n, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1316 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1317 ii.assign (src, n, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1318 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1319 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1320 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1321 if (isfill)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1322 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1323 for (octave_idx_type k = 0; k < jl; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1324 i.fill (src, r, dest + r j.xelem (k));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1325 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1326 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1327 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1328 for (octave_idx_type k = 0; k < jl; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1329 src += i.assign (src, r, dest + r * j.xelem (k));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1330 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1331 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1332 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1333
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1334 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1335
3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1336 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1337 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1338 gripe_assignment_dimension_mismatch ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1339 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1340
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1341 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1342 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1343 Array<T>::assign (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1344 const Array<T>& rhs, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1345 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1346 int ial = ia.length ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1347
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1348 // FIXME: is this dispatching necessary / desirable?
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1349 if (ial == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1350 assign (ia(0), rhs, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1351 else if (ial == 2)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1352 assign (ia(0), ia(1), rhs, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1353 else if (ial > 0)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1354 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1355 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1356 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1357
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1358 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1359 dim_vector dv = dimensions.redim (ial);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1360
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1361 // Get the extents forced by indexing.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1362 dim_vector rdv;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1363
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1364 // In the special when all dimensions are zero, colons are
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1365 // allowed to inquire the shape of RHS. The rules are more
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1366 // obscure, so we solve that elsewhere.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1367 if (dv.all_zero ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1368 rdv = zero_dims_inquire (ia, rhdv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1369 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1370 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1371 rdv.resize (ial);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1372 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1373 rdv(i) = ia(i).extent (dv(i));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1374 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1375
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1376 // Check whether LHS and RHS match, up to singleton dims.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1377 bool match = true, all_colons = true, isfill = rhs.numel () == 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1378
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1379 rhdv.chop_all_singletons ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1380 int j = 0, rhdvl = rhdv.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1381 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1382 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1383 all_colons = all_colons && ia(i).is_colon ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1384 octave_idx_type l = ia(i).length (rdv(i));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1385 if (l == 1) continue;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1386 match = match && j < rhdvl && l == rhdv(j++);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1387 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1388
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1389 match = match && (j == rhdvl \|\| rhdv(j) == 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1390 match = match \|\| isfill;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1391
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1392 if (match)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1393 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1394 // Resize first if necessary.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1395 if (rdv != dv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1396 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1397 resize_fill (rdv, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1398 dv = dimensions;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1399 chop_trailing_singletons ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1400 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1401
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1402 // If the resizing was invalid, resize has already griped.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1403 if (dv == rdv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1404 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1405 if (all_colons)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1406 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1407 // A(:,:,...,:) = X makes a full fill or a shallow copy.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1408 if (isfill)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1409 fill (rhs(0));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1410 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1411 *this = rhs.reshape (dimensions);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1412 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1413 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1414 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1415 // Do the actual work.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1416
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1417 // Prepare for recursive indexing
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1418 rec_index_helper rh (dv, ia);
4553 c7eb767505e9 [project @ 2003-10-27 21:39:55 by jwe] jwe parents: 4548 diff changeset	1419
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1420 // Do it.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1421 if (isfill)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1422 rh.fill (rhs(0), fortran_vec ());
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1423 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1424 rh.assign (rhs.data (), fortran_vec ());
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1425 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1426 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1427 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1428 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1429 gripe_assignment_dimension_mismatch ();
4553 c7eb767505e9 [project @ 2003-10-27 21:39:55 by jwe] jwe parents: 4548 diff changeset	1430 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1431 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1432
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1433 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1434 void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1435 Array<T>::delete_elements (const idx_vector& i)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1436 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1437 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1438 if (i.is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1439 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1440 *this = Array<T> ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1441 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1442 else if (i.extent (n) != n)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1443 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1444 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1445 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1446 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1447 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1448 octave_idx_type l, u;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1449
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1450 bool col_vec = ndims () == 2 && columns () == 1 && rows () != 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1451 if (i.is_cont_range (n, l, u))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1452 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1453 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1454 octave_idx_type m = n + l - u;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1455 Array<T> tmp (dim_vector (col_vec ? m : 1, !col_vec ? m : 1));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1456 const T *src = data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1457 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1458 dest = std::copy (src, src + l, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1459 dest = std::copy (src + u, src + n, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1460 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1461 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1462 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1463 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1464 // Use index.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1465 *this = index (i.complement (n));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1466 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1467 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1468 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1469
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1470 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1471 void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1472 Array<T>::delete_elements (int dim, const idx_vector& i)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1473 {
8302 f2e050b62199 fix dim check in Array<T>::delete_elements Jaroslav Hajek <highegg@gmail.com> parents: 8290 diff changeset	1474 if (dim < 0 \|\| dim >= ndims ())
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1475 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1476 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1477 ("invalid dimension in delete_elements");
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1478 return;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1479 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1480
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1481 octave_idx_type n = dimensions (dim);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1482 if (i.is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1483 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1484 *this = Array<T> ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1485 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1486 else if (i.extent (n) != n)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1487 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1488 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1489 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1490 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1491 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1492 octave_idx_type l, u;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1493
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1494 if (i.is_cont_range (n, l, u))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1495 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1496 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1497 octave_idx_type nd = n + l - u, dl = 1, du = 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1498 dim_vector rdv = dimensions;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1499 rdv(dim) = nd;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1500 for (int k = 0; k < dim; k++) dl *= dimensions(k);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1501 for (int k = dim + 1; k < ndims (); k++) du *= dimensions(k);
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1502
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1503 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1504 Array<T> tmp = Array<T> (rdv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1505 const T *src = data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1506 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1507 l = dl; u = dl; n *= dl;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1508 for (octave_idx_type k = 0; k < du; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1509 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1510 dest = std::copy (src, src + l, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1511 dest = std::copy (src + u, src + n, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1512 src += n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1513 }
4870 2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe] jwe parents: 4834 diff changeset	1514
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1515 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1516 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1517 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1518 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1519 // Use index.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1520 Array<idx_vector> ia (ndims (), idx_vector::colon);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1521 ia (dim) = i.complement (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1522 *this = index (ia);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1523 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1524 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1525 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1526
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1527 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1528 void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1529 Array<T>::delete_elements (const Array<idx_vector>& ia)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1530 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1531 if (ia.length () == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1532 delete_elements (ia(0));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1533 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1534 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1535 int len = ia.length (), k, dim = -1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1536 for (k = 0; k < len; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1537 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1538 if (! ia(k).is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1539 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1540 if (dim < 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1541 dim = k;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1542 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1543 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1544 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1545 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1546 if (dim < 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1547 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1548 dim_vector dv = dimensions;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1549 dv(0) = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1550 *this = Array<T> (dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1551 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1552 else if (k == len)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1553 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1554 delete_elements (dim, ia(dim));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1555 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1556 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1557 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1558 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1559 ("A null assignment can only have one non-colon index.");
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1560 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1561 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1562
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1563 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1564
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1565 // FIXME: Remove these methods or implement them using assign.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1566
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1567 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1568 Array<T>&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1569 Array<T>::insert (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1570 {
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1571 if (ndims () == 2 && a.ndims () == 2)
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1572 insert2 (a, r, c);
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1573 else
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1574 insertN (a, r, c);
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1575
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1576 return *this;
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1577 }
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1578
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1579
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1580 template <class T>
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1581 Array<T>&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1582 Array<T>::insert2 (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1583 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1584 octave_idx_type a_rows = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1585 octave_idx_type a_cols = a.cols ();
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1586
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1587 if (r < 0 \|\| r + a_rows > rows () \|\| c < 0 \|\| c + a_cols > cols ())
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1588 {
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1589 (*current_liboctave_error_handler) ("range error for insert");
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1590 return *this;
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1591 }
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1592
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1593 for (octave_idx_type j = 0; j < a_cols; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1594 for (octave_idx_type i = 0; i < a_rows; i++)
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1595 elem (r+i, c+j) = a.elem (i, j);
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1596
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1597 return *this;
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1598 }
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1599
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1600 template <class T>
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1601 Array<T>&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1602 Array<T>::insertN (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1603 {
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1604 dim_vector dv = dims ();
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1605
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1606 dim_vector a_dv = a.dims ();
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1607
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1608 int n = a_dv.length ();
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1609
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1610 if (n == dimensions.length ())
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1611 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1612 Array<octave_idx_type> a_ra_idx (a_dv.length (), 0);
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1613
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1614 a_ra_idx.elem (0) = r;
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1615 a_ra_idx.elem (1) = c;
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1616
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1617 for (int i = 0; i < n; i++)
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1618 {
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1619 if (a_ra_idx(i) < 0 \|\| (a_ra_idx(i) + a_dv(i)) > dv(i))
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1620 {
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1621 (*current_liboctave_error_handler)
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1622 ("Array<T>::insert: range error for insert");
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1623 return *this;
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1624 }
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1625 }
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1626
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1627 octave_idx_type n_elt = a.numel ();
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1628
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1629 const T *a_data = a.data ();
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1630
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1631 octave_idx_type iidx = 0;
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1632
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1633 octave_idx_type a_rows = a_dv(0);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1634
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1635 octave_idx_type this_rows = dv(0);
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1636
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1637 octave_idx_type numel_page = a_dv(0) * a_dv(1);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1638
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1639 octave_idx_type count_pages = 0;
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1640
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1641 for (octave_idx_type i = 0; i < n_elt; i++)
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1642 {
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1643 if (i != 0 && i % a_rows == 0)
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1644 iidx += (this_rows - a_rows);
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1645
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1646 if (i % numel_page == 0)
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1647 iidx = c * dv(0) + r + dv(0) * dv(1) * count_pages++;
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1648
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1649 elem (iidx++) = a_data[i];
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1650 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1651 }
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1652 else
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1653 (*current_liboctave_error_handler)
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1654 ("Array<T>::insert: invalid indexing operation");
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1655
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1656 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1657 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1658
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1659 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1660 Array<T>&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1661 Array<T>::insert (const Array<T>& a, const Array<octave_idx_type>& ra_idx)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1662 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1663 octave_idx_type n = ra_idx.length ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1664
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1665 if (n == dimensions.length ())
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1666 {
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1667 dim_vector dva = a.dims ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1668 dim_vector dv = dims ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1669 int len_a = dva.length ();
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1670 int non_full_dim = 0;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1671
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1672 for (octave_idx_type i = 0; i < n; i++)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1673 {
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1674 if (ra_idx(i) < 0 \|\| (ra_idx(i) +
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1675 (i < len_a ? dva(i) : 1)) > dimensions(i))
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1676 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1677 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1678 ("Array<T>::insert: range error for insert");
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1679 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1680 }
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1681
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1682 if (dv(i) != (i < len_a ? dva(i) : 1))
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1683 non_full_dim++;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1684 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1685
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1686 if (dva.numel ())
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1687 {
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1688 if (non_full_dim < 2)
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1689 {
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1690 // Special case for fast concatenation
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1691 const T *a_data = a.data ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1692 octave_idx_type numel_to_move = 1;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1693 octave_idx_type skip = 0;
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1694 for (int i = 0; i < len_a; i++)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1695 if (ra_idx(i) == 0 && dva(i) == dv(i))
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1696 numel_to_move *= dva(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1697 else
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1698 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1699 skip = numel_to_move * (dv(i) - dva(i));
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1700 numel_to_move *= dva(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1701 break;
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1702 }
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1703
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1704 octave_idx_type jidx = ra_idx(n-1);
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1705 for (int i = n-2; i >= 0; i--)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1706 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1707 jidx *= dv(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1708 jidx += ra_idx(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1709 }
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1710
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1711 octave_idx_type iidx = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1712 octave_idx_type moves = dva.numel () / numel_to_move;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1713 for (octave_idx_type i = 0; i < moves; i++)
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1714 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1715 for (octave_idx_type j = 0; j < numel_to_move; j++)
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1716 elem (jidx++) = a_data[iidx++];
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1717 jidx += skip;
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1718 }
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1719 }
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1720 else
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1721 {
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1722 // Generic code
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1723 const T *a_data = a.data ();
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1724 int nel = a.numel ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1725 Array<octave_idx_type> a_idx (n, 0);
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1726
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1727 for (int i = 0; i < nel; i++)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1728 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1729 int iidx = a_idx(n-1) + ra_idx(n-1);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1730 for (int j = n-2; j >= 0; j--)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1731 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1732 iidx *= dv(j);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1733 iidx += a_idx(j) + ra_idx(j);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1734 }
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1735
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1736 elem (iidx) = a_data[i];
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1737
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1738 increment_index (a_idx, dva);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1739 }
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1740 }
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1741 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1742 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1743 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1744 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1745 ("Array<T>::insert: invalid indexing operation");
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1746
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1747 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1748 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1749
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1750
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1751 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1752 Array<T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1753 Array<T>::transpose (void) const
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1754 {
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	1755 assert (ndims () == 2);
820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	1756
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1757 octave_idx_type nr = dim1 ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1758 octave_idx_type nc = dim2 ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1759
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1760 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1761 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1762 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1763
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1764 // Blocked transpose to attempt to avoid cache misses.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1765
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1766 // Don't use OCTAVE_LOCAL_BUFFER here as it doesn't work with bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1767 // on some compilers.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1768 T buf[64];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1769
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1770 octave_idx_type ii = 0, jj;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1771 for (jj = 0; jj < (nc - 8 + 1); jj += 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1772 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1773 for (ii = 0; ii < (nr - 8 + 1); ii += 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1774 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1775 // Copy to buffer
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1776 for (octave_idx_type j = jj, k = 0, idxj = jj * nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1777 j < jj + 8; j++, idxj += nr)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1778 for (octave_idx_type i = ii; i < ii + 8; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1779 buf[k++] = xelem (i + idxj);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1780
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1781 // Copy from buffer
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1782 for (octave_idx_type i = ii, idxi = ii * nc; i < ii + 8;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1783 i++, idxi += nc)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1784 for (octave_idx_type j = jj, k = i - ii; j < jj + 8;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1785 j++, k+=8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1786 result.xelem (j + idxi) = buf[k];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1787 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1788
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1789 if (ii < nr)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1790 for (octave_idx_type j = jj; j < jj + 8; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1791 for (octave_idx_type i = ii; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1792 result.xelem (j, i) = xelem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1793 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1794
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1795 for (octave_idx_type j = jj; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1796 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1797 result.xelem (j, i) = xelem (i, j);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1798
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1799 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1800 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1801 else if (nr > 1 && nc > 1)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1802 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1803 Array<T> result (dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1804
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1805 for (octave_idx_type j = 0; j < nc; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1806 for (octave_idx_type i = 0; i < nr; i++)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1807 result.xelem (j, i) = xelem (i, j);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1808
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1809 return result;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1810 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1811 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1812 {
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1813 // Fast transpose for vectors and empty matrices.
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1814 return Array<T> (*this, dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1815 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1816 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1817
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1818 template <class T>
8028 f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1819 static T
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1820 no_op_fcn (const T& x)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1821 {
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1822 return x;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1823 }
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1824
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1825 template <class T>
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1826 Array<T>
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1827 Array<T>::hermitian (T (*fcn) (const T&)) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1828 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1829 assert (ndims () == 2);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1830
8028 f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1831 if (! fcn)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1832 fcn = no_op_fcn<T>;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1833
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1834 octave_idx_type nr = dim1 ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1835 octave_idx_type nc = dim2 ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1836
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1837 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1838 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1839 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1840
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1841 // Blocked transpose to attempt to avoid cache misses.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1842
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1843 // Don't use OCTAVE_LOCAL_BUFFER here as it doesn't work with bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1844 // on some compilers.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1845 T buf[64];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1846
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1847 octave_idx_type ii = 0, jj;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1848 for (jj = 0; jj < (nc - 8 + 1); jj += 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1849 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1850 for (ii = 0; ii < (nr - 8 + 1); ii += 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1851 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1852 // Copy to buffer
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1853 for (octave_idx_type j = jj, k = 0, idxj = jj * nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1854 j < jj + 8; j++, idxj += nr)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1855 for (octave_idx_type i = ii; i < ii + 8; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1856 buf[k++] = xelem (i + idxj);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1857
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1858 // Copy from buffer
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1859 for (octave_idx_type i = ii, idxi = ii * nc; i < ii + 8;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1860 i++, idxi += nc)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1861 for (octave_idx_type j = jj, k = i - ii; j < jj + 8;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1862 j++, k+=8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1863 result.xelem (j + idxi) = fcn (buf[k]);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1864 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1865
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1866 if (ii < nr)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1867 for (octave_idx_type j = jj; j < jj + 8; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1868 for (octave_idx_type i = ii; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1869 result.xelem (j, i) = fcn (xelem (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1870 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1871
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1872 for (octave_idx_type j = jj; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1873 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1874 result.xelem (j, i) = fcn (xelem (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1875
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1876 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1877 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1878 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1879 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1880 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1881
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1882 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1883 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1884 result.xelem (j, i) = fcn (xelem (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1885
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1886 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1887 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1888 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1889
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1890 /*
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1891
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1892 %% Tranpose tests for matrices of the tile size and plus or minus a row
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1893 %% and with four tiles.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1894
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1895 %!shared m7, mt7, m8, mt8, m9, mt9
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1896 %! m7 = reshape (1 : 7*8, 8, 7);
7796 762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1897 %! mt7 = [1:8; 9:16; 17:24; 25:32; 33:40; 41:48; 49:56];
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1898 %! m8 = reshape (1 : 8*8, 8, 8);
7796 762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1899 %! mt8 = mt8 = [mt7; 57:64];
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1900 %! m9 = reshape (1 : 9*8, 8, 9);
7796 762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1901 %! mt9 = [mt8; 65:72];
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1902
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1903 %!assert(m7', mt7)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1904 %!assert((1im7).', 1i mt7)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1905 %!assert((1im7)', conj (1i mt7))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1906 %!assert(m8', mt8)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1907 %!assert((1im8).', 1i mt8)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1908 %!assert((1im8)', conj (1i mt8))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1909 %!assert(m9', mt9)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1910 %!assert((1im9).', 1i mt9)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1911 %!assert((1im9)', conj (1i mt9))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1912 %!assert([m7, m8; m7, m8]', [mt7, mt7; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1913 %!assert((1i[m7, m8; m7, m8]).', 1i [mt7, mt7; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1914 %!assert((1i[m7, m8; m7, m8])', conj (1i [mt7, mt7; mt8, mt8]))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1915 %!assert([m8, m8; m8, m8]', [mt8, mt8; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1916 %!assert((1i[m8, m8; m8, m8]).', 1i [mt8, mt8; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1917 %!assert((1i[m8, m8; m8, m8])', conj (1i [mt8, mt8; mt8, mt8]))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1918 %!assert([m9, m8; m9, m8]', [mt9, mt9; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1919 %!assert((1i[m9, m8; m9, m8]).', 1i [mt9, mt9; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1920 %!assert((1i[m9, m8; m9, m8])', conj (1i [mt9, mt9; mt8, mt8]))
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1921
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1922 */
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1923
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1924 template <class T>
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1925 T *
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1926 Array<T>::fortran_vec (void)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1927 {
6881 cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe] jwe parents: 6867 diff changeset	1928 make_unique ();
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe] jwe parents: 6867 diff changeset	1929
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	1930 return slice_data;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1931 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1932
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1933 template <class T>
3933 f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	1934 void
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1935 Array<T>::maybe_delete_dims (void)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1936 {
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4586 diff changeset	1937 int nd = dimensions.length ();
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1938
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1939 dim_vector new_dims (1, 1);
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1940
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1941 bool delete_dims = true;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1942
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4586 diff changeset	1943 for (int i = nd - 1; i >= 0; i--)
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1944 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1945 if (delete_dims)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1946 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1947 if (dimensions(i) != 1)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1948 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1949 delete_dims = false;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1950
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1951 new_dims = dim_vector (i + 1, dimensions(i));
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1952 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1953 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1954 else
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1955 new_dims(i) = dimensions(i);
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1956 }
4530 e8d87fefd144 [project @ 2003-10-07 04:02:04 by jwe] jwe parents: 4518 diff changeset	1957
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4586 diff changeset	1958 if (nd != new_dims.length ())
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1959 dimensions = new_dims;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1960 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1961
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1962 template <class T>
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1963 bool
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1964 ascending_compare (T a, T b)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1965 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1966 return (a < b);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1967 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1968
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1969 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1970 bool
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1971 descending_compare (T a, T b)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1972 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1973 return (a > b);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1974 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1975
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1976 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1977 bool
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1978 ascending_compare (vec_index<T> a, vec_index<T> b)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1979 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1980 return (a->vec < b->vec);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1981 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1982
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1983 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1984 bool
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1985 descending_compare (vec_index<T> a, vec_index<T> b)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1986 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1987 return (a->vec > b->vec);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1988 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1989
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1990 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1991 Array<T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1992 Array<T>::sort (octave_idx_type dim, sortmode mode) const
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1993 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1994 Array<T> m = *this;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1995
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1996 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1997
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1998 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1999 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2000
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2001 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2002 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2003 octave_idx_type stride = 1;
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2004
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2005 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2006 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2007
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2008 T *v = m.fortran_vec ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2009 octave_sort<T> lsort;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2010
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2011 if (mode == ASCENDING)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2012 lsort.set_compare (ascending_compare);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2013 else if (mode == DESCENDING)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2014 lsort.set_compare (descending_compare);
7463 2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7443 diff changeset	2015 else
2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7443 diff changeset	2016 abort ();
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2017
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2018 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2019 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2020 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2021 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2022 lsort.sort (v, ns);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2023 v += ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2024 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2025 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2026 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2027 {
8379 ad8ed668e0a4 allow initialized local buffers Jaroslav Hajek <highegg@gmail.com> parents: 8377 diff changeset	2028 OCTAVE_LOCAL_BUFFER (T, pvi, ns);
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2029
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2030 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2031 {
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2032 octave_idx_type offset = j;
124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2033 octave_idx_type offset2 = 0;
124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2034
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2035 while (offset >= stride)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2036 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2037 offset -= stride;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2038 offset2++;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2039 }
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2040
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2041 offset += offset2 * stride * ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2042
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2043 for (octave_idx_type i = 0; i < ns; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2044 pvi[i] = v[i*stride + offset];
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2045
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2046 lsort.sort (pvi, ns);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2047
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2048 for (octave_idx_type i = 0; i < ns; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2049 v[i*stride + offset] = pvi[i];
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2050 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2051 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2052
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2053 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2054 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2055
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2056 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2057 Array<T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2058 Array<T>::sort (Array<octave_idx_type> &sidx, octave_idx_type dim,
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2059 sortmode mode) const
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2060 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2061 Array<T> m = *this;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2062
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2063 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2064
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2065 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2066 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2067 sidx = Array<octave_idx_type> (dv);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2068 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2069 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2070
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2071 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2072 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2073 octave_idx_type stride = 1;
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2074
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2075 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2076 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2077
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2078 T *v = m.fortran_vec ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2079 octave_sort<vec_index<T> *> indexed_sort;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2080
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2081 if (mode == ASCENDING)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2082 indexed_sort.set_compare (ascending_compare);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2083 else if (mode == DESCENDING)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2084 indexed_sort.set_compare (descending_compare);
7463 2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7443 diff changeset	2085 else
2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7443 diff changeset	2086 abort ();
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2087
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2088 OCTAVE_LOCAL_BUFFER (vec_index<T> *, vi, ns);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2089 OCTAVE_LOCAL_BUFFER (vec_index<T>, vix, ns);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2090
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2091 for (octave_idx_type i = 0; i < ns; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2092 vi[i] = &vix[i];
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2093
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2094 sidx = Array<octave_idx_type> (dv);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2095
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2096 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2097 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2098 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2099 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2100 octave_idx_type offset = j * ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2101
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2102 for (octave_idx_type i = 0; i < ns; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2103 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2104 vi[i]->vec = v[i];
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2105 vi[i]->indx = i;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2106 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2107
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2108 indexed_sort.sort (vi, ns);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2109
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2110 for (octave_idx_type i = 0; i < ns; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2111 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2112 v[i] = vi[i]->vec;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2113 sidx(i + offset) = vi[i]->indx;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2114 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2115 v += ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2116 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2117 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2118 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2119 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2120 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2121 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2122 octave_idx_type offset = j;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2123 octave_idx_type offset2 = 0;
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2124
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2125 while (offset >= stride)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2126 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2127 offset -= stride;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2128 offset2++;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2129 }
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2130
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2131 offset += offset2 * stride * ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2132
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2133 for (octave_idx_type i = 0; i < ns; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2134 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2135 vi[i]->vec = v[i*stride + offset];
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2136 vi[i]->indx = i;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2137 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2138
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2139 indexed_sort.sort (vi, ns);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2140
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2141 for (octave_idx_type i = 0; i < ns; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2142 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2143 v[i*stride+offset] = vi[i]->vec;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2144 sidx(i*stride+offset) = vi[i]->indx;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2145 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2146 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2147 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2148
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2149 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2150 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2151
7443 d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2152 #if defined (HAVE_IEEE754_DATA_FORMAT)
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2153
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2154 template <>
7480 93826ba0d078 compilation fixes Jason Riedy parents: 7463 diff changeset	2155 bool ascending_compare (double, double);
7443 d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2156 template <>
7480 93826ba0d078 compilation fixes Jason Riedy parents: 7463 diff changeset	2157 bool ascending_compare (vec_index<double>, vec_index<double>);
7443 d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2158 template <>
7480 93826ba0d078 compilation fixes Jason Riedy parents: 7463 diff changeset	2159 bool descending_compare (double, double);
7443 d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2160 template <>
7480 93826ba0d078 compilation fixes Jason Riedy parents: 7463 diff changeset	2161 bool descending_compare (vec_index<double>, vec_index<double>);
7443 d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2162
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2163 template <>
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2164 Array<double> Array<double>::sort (octave_idx_type dim, sortmode mode) const;
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2165 template <>
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2166 Array<double> Array<double>::sort (Array<octave_idx_type> &sidx,
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2167 octave_idx_type dim, sortmode mode) const;
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2168
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2169 #endif
d98dea7d16b0 [project @ 2008-02-03 20:58:12 by jwe] jwe parents: 7442 diff changeset	2170
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2171 template <class T>
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2172 Array<T>
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2173 Array<T>::diag (octave_idx_type k) const
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2174 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2175 dim_vector dv = dims ();
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2176 octave_idx_type nd = dv.length ();
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2177 Array<T> d;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2178
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2179 if (nd > 2)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2180 (*current_liboctave_error_handler) ("Matrix must be 2-dimensional");
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2181 else
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2182 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2183 octave_idx_type nnr = dv (0);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2184 octave_idx_type nnc = dv (1);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2185
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2186 if (nnr == 0 \|\| nnc == 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2187 ; // do nothing
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2188 else if (nnr != 1 && nnc != 1)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2189 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2190 if (k > 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2191 nnc -= k;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2192 else if (k < 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2193 nnr += k;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2194
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2195 if (nnr > 0 && nnc > 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2196 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2197 octave_idx_type ndiag = (nnr < nnc) ? nnr : nnc;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2198
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2199 d.resize (dim_vector (ndiag, 1));
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2200
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2201 if (k > 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2202 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2203 for (octave_idx_type i = 0; i < ndiag; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2204 d.xelem (i) = elem (i, i+k);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2205 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2206 else if (k < 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2207 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2208 for (octave_idx_type i = 0; i < ndiag; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2209 d.xelem (i) = elem (i-k, i);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2210 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2211 else
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2212 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2213 for (octave_idx_type i = 0; i < ndiag; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2214 d.xelem (i) = elem (i, i);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2215 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2216 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2217 else
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2218 (*current_liboctave_error_handler)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2219 ("diag: requested diagonal out of range");
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2220 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2221 else if (nnr != 0 && nnc != 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2222 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2223 octave_idx_type roff = 0;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2224 octave_idx_type coff = 0;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2225 if (k > 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2226 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2227 roff = 0;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2228 coff = k;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2229 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2230 else if (k < 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2231 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2232 roff = -k;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2233 coff = 0;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2234 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2235
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2236 if (nnr == 1)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2237 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2238 octave_idx_type n = nnc + std::abs (k);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	2239 d = Array<T> (dim_vector (n, n), resize_fill_value ());
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2240
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2241 for (octave_idx_type i = 0; i < nnc; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2242 d.xelem (i+roff, i+coff) = elem (0, i);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2243 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2244 else
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2245 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2246 octave_idx_type n = nnr + std::abs (k);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	2247 d = Array<T> (dim_vector (n, n), resize_fill_value ());
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2248
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2249 for (octave_idx_type i = 0; i < nnr; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2250 d.xelem (i+roff, i+coff) = elem (i, 0);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2251 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2252 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2253 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2254
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2255 return d;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2256 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2257
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	2258 template <class T>
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	2259 void
3933 f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	2260 Array<T>::print_info (std::ostream& os, const std::string& prefix) const
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	2261 {
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2262 os << prefix << "rep address: " << rep << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2263 << prefix << "rep->len: " << rep->len << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2264 << prefix << "rep->data: " << static_cast<void *> (rep->data) << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2265 << prefix << "rep->count: " << rep->count << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2266 << prefix << "slice_data: " << static_cast<void *> (slice_data) << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2267 << prefix << "slice_len: " << slice_len << '\n';
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	2268
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	2269 // 2D info:
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	2270 //
4657 a585a2dfca6c [project @ 2003-11-25 01:30:09 by jwe] jwe parents: 4656 diff changeset	2271 // << pefix << "rows: " << rows () << "\n"
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	2272 // << prefix << "cols: " << cols () << "\n";
3933 f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	2273 }
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	2274
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2275 /*
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2276 ;;; Local Variables: ***
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2277 ;;; mode: C++ ***
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2278 ;;; End: ***
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2279 */

Mercurial > octave-nkf

annotate liboctave/Array.cc @ 8563:3a3421a9f0bb