octave: liboctave/idx-vector.h annotate

annotate liboctave/idx-vector.h @ 10273:3a8c13b71612

implement special-case optimization for sort of index vectors

author	Jaroslav Hajek <highegg@gmail.com>
date	Mon, 08 Feb 2010 11:16:52 +0100
parents	4c0cdbe0acca
children	22a7913bbeb5

rev	line source
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1 /*
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2
7017 a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2002, 2003,
a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	4 2004, 2005, 2006, 2007 John W. Eaton
8920 eb63fbe60fab update copyright notices John W. Eaton <jwe@octave.org> parents: 8680 diff changeset	5 Copyright (C) 2008, 2009 Jaroslav Hajek
9601 a9b37bae1802 add a couple of missing copyright statements Jaroslav Hajek <highegg@gmail.com> parents: 9479 diff changeset	6 Copyright (C) 2009 VZLU Prague
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	7
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	8 This file is part of Octave.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	9
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	10 Octave is free software; you can redistribute it and/or modify it
78fd87e624cb [project @ 1993-08-08 01:13:40 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: 6108 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: 6108 diff changeset	13 option) any later version.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	14
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	15 Octave is distributed in the hope that it will be useful, but WITHOUT
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	18 for more details.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	19
78fd87e624cb [project @ 1993-08-08 01:13:40 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: 6108 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: 6108 diff changeset	22 <http://www.gnu.org/licenses/>.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	23
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	24 */
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	25
383 0b52c68ec81f [project @ 1994-03-09 21:19:44 by jwe] jwe parents: 240 diff changeset	26 #if !defined (octave_idx_vector_h)
0b52c68ec81f [project @ 1994-03-09 21:19:44 by jwe] jwe parents: 240 diff changeset	27 #define octave_idx_vector_h 1
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	28
8950 d865363208d6 include <iosfwd> instead of <iostream> in header files John W. Eaton <jwe@octave.org> parents: 8934 diff changeset	29 #include <cassert>
d865363208d6 include <iosfwd> instead of <iostream> in header files John W. Eaton <jwe@octave.org> parents: 8934 diff changeset	30
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	31 #include <algorithm>
8950 d865363208d6 include <iosfwd> instead of <iostream> in header files John W. Eaton <jwe@octave.org> parents: 8934 diff changeset	32 #include <iosfwd>
3503 d14c483b3c12 [project @ 2000-02-01 04:06:07 by jwe] jwe parents: 3145 diff changeset	33
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	34 #include "dim-vector.h"
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	35 #include "oct-inttypes.h"
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	36 #include "oct-alloc.h"
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	37 #include "oct-mem.h"
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	38
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	39 template<class T> class Array;
8384 a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	40 template<class T> class Sparse;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	41 class Range;
4504 f6a61399bc5c [project @ 2003-09-09 17:48:00 by jwe] jwe parents: 4461 diff changeset	42
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	43 // Design rationale:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	44 // idx_vector is a reference-counting, polymorphic pointer, that can contain
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	45 // 4 types of index objects: a magic colon, a range, a scalar, or an index vector.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	46 // Polymorphic methods for single element access are provided, as well as
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	47 // templates implementing "early dispatch", i.e. hoisting the checks for index
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	48 // type out of loops.
164 e2c950dd96d2 [project @ 1993-10-18 19:32:00 by jwe] jwe parents: 1 diff changeset	49
453 393e95f46b51 [project @ 1994-06-06 00:05:20 by jwe] jwe parents: 434 diff changeset	50 class
6108 143b556ce725 [project @ 2006-10-27 01:45:54 by jwe] jwe parents: 5781 diff changeset	51 OCTAVE_API
453 393e95f46b51 [project @ 1994-06-06 00:05:20 by jwe] jwe parents: 434 diff changeset	52 idx_vector
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	53 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	54 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	55
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	56 enum idx_class_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	57 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	58 class_invalid = -1,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	59 class_colon = 0,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	60 class_range,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	61 class_scalar,
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	62 class_vector,
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	63 class_mask
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	64 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	65
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	66 private:
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	67
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	68 class OCTAVE_API idx_base_rep
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	69 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	70 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	71 idx_base_rep (void) : count (1), err (false) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	72
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	73 virtual ~idx_base_rep (void) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	74
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	75 // Non-range-checking element query.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	76 virtual octave_idx_type xelem (octave_idx_type i) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	77
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	78 // Range-checking element query.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	79 virtual octave_idx_type checkelem (octave_idx_type i) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	80
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	81 // Length of the index vector.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	82 virtual octave_idx_type length (octave_idx_type n) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	83
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	84 // The maximum index + 1. The actual dimension is passed in.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	85 virtual octave_idx_type extent (octave_idx_type n) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	86
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	87 // Index class.
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	88 virtual idx_class_type idx_class (void) const { return class_invalid; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	89
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	90 // Sorts, maybe uniqifies, and returns a clone object pointer.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	91 virtual idx_base_rep *sort_uniq_clone (bool uniq = false) = 0;
10273 3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	92 // Sorts, and returns a sorting permutation (aka Array::sort).
3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	93 virtual idx_base_rep *sort_idx (Array<octave_idx_type>&) = 0;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	94
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	95 // Checks whether the index is colon or a range equivalent to colon.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	96 virtual bool is_colon_equiv (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	97 { return false; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	98
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	99 // The original dimensions of this object (used when subscribing by matrices).
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	100 virtual dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	101 { return dim_vector (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	102
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	103 // i/o
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	104 virtual std::ostream& print (std::ostream& os) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	105
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	106 int count;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	107
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	108 bool err;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	109
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	110 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	111
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	112 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	113 idx_base_rep (const idx_base_rep&);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	114 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	115
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	116 // The magic colon index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	117 class OCTAVE_API idx_colon_rep : public idx_base_rep
1879 1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	118 {
1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	119 public:
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	120 idx_colon_rep (void) { }
1879 1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	121
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	122 idx_colon_rep (char c);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	123
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	124 octave_idx_type xelem (octave_idx_type i) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	125 { return i; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	126
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	127 octave_idx_type checkelem (octave_idx_type i) const;
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	128
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	129 octave_idx_type length (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	130 { return n; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	131
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	132 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	133 { return n; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	134
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	135 idx_class_type idx_class (void) const { return class_colon; }
1879 1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	136
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	137 idx_base_rep *sort_uniq_clone (bool = false)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	138 { count++; return this; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	139
10273 3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	140 idx_base_rep *sort_idx (Array<octave_idx_type>&);
3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	141
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	142 bool is_colon_equiv (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	143 { return true; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	144
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	145 std::ostream& print (std::ostream& os) const;
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	146
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	147 private:
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	148
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	149 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	150
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	151 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	152 idx_colon_rep (const idx_colon_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	153 };
2386 4fc9fd1424a9 [project @ 1996-10-12 18:31:34 by jwe] jwe parents: 2356 diff changeset	154
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	155 // To distinguish the "direct" constructors that blindly trust the data.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	156 enum direct { DIRECT };
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2802 diff changeset	157
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	158 // The integer range index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	159 class OCTAVE_API idx_range_rep : public idx_base_rep
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	160 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	161 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	162 idx_range_rep (octave_idx_type _start, octave_idx_type _len,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	163 octave_idx_type _step, direct)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	164 : idx_base_rep (), start(_start), len(_len), step(_step) { }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	165
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	166 idx_range_rep (void)
8298 7e87d3d76a56 fix extent query for empty ranges Jaroslav Hajek <highegg@gmail.com> parents: 8290 diff changeset	167 : start(0), len(0), step(1) { }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	168
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	169 // Zero-based constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	170 idx_range_rep (octave_idx_type _start, octave_idx_type _limit,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	171 octave_idx_type _step);
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	172
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	173 idx_range_rep (const Range&);
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	174
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	175 octave_idx_type xelem (octave_idx_type i) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	176 { return start + i * step; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	177
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	178 octave_idx_type checkelem (octave_idx_type i) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	179
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	180 octave_idx_type length (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	181 { return len; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	182
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	183 octave_idx_type extent (octave_idx_type n) const
8298 7e87d3d76a56 fix extent query for empty ranges Jaroslav Hajek <highegg@gmail.com> parents: 8290 diff changeset	184 { return len ? std::max (n, (start + 1 + (step < 0 ? 0 : step * (len - 1)))) : n; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	185
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	186 idx_class_type idx_class (void) const { return class_range; }
1879 1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	187
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	188 idx_base_rep *sort_uniq_clone (bool uniq = false);
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	189
10273 3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	190 idx_base_rep *sort_idx (Array<octave_idx_type>&);
3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	191
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	192 bool is_colon_equiv (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	193 { return start == 0 && step == 1 && len == n; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	194
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	195 dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	196 { return dim_vector (1, len); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	197
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	198 octave_idx_type get_start (void) const { return start; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	199
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	200 octave_idx_type get_step (void) const { return step; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	201
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	202 std::ostream& print (std::ostream& os) const;
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	203
9894 83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	204 Range unconvert (void) const;
83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	205
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	206 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	207
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	208 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	209
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	210 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	211 idx_range_rep (const idx_range_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	212
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	213 octave_idx_type start, len, step;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	214
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	215 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	216
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	217 // The integer scalar index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	218 class OCTAVE_API idx_scalar_rep : public idx_base_rep
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	219 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	220 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	221 idx_scalar_rep (octave_idx_type i, direct)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	222 : data (i) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	223
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	224 idx_scalar_rep (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	225 : data (0) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	226
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	227 // Zero-based constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	228 idx_scalar_rep (octave_idx_type i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	229
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	230 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	231 idx_scalar_rep (T x);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	232
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	233 octave_idx_type xelem (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	234 { return data; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	235
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	236 octave_idx_type checkelem (octave_idx_type i) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	237
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	238 octave_idx_type length (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	239 { return 1; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	240
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	241 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	242 { return std::max (n, data + 1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	243
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	244 idx_class_type idx_class (void) const { return class_scalar; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	245
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	246 idx_base_rep *sort_uniq_clone (bool = false)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	247 { count++; return this; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	248
10273 3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	249 idx_base_rep *sort_idx (Array<octave_idx_type>&);
3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	250
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	251 bool is_colon_equiv (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	252 { return n == 1 && data == 0; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	253
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	254 dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	255 { return dim_vector (1, 1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	256
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	257 octave_idx_type get_data (void) const { return data; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	258
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	259 std::ostream& print (std::ostream& os) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	260
9894 83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	261 double unconvert (void) const;
83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	262
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	263 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	264
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	265 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	266
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	267 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	268 idx_scalar_rep (const idx_scalar_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	269
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	270 octave_idx_type data;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	271
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	272 };
4504 f6a61399bc5c [project @ 2003-09-09 17:48:00 by jwe] jwe parents: 4461 diff changeset	273
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	274 // The integer vector index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	275 class OCTAVE_API idx_vector_rep : public idx_base_rep
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	276 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	277 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	278 // Direct constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	279 idx_vector_rep (octave_idx_type *_data, octave_idx_type _len,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	280 octave_idx_type _ext, const dim_vector& od, direct)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	281 : data (_data), len (_len), ext (_ext), aowner (0), orig_dims (od) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	282
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	283 idx_vector_rep (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	284 : data (0), len (0), aowner (0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	285 { }
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	286
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	287 // Zero-based constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	288 idx_vector_rep (const Array<octave_idx_type>& inda);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	289
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	290 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	291 idx_vector_rep (const Array<T>&);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	292
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	293 idx_vector_rep (bool);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	294
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	295 idx_vector_rep (const Array<bool>&, octave_idx_type = -1);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	296
8384 a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	297 idx_vector_rep (const Sparse<bool>&);
a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	298
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	299 ~idx_vector_rep (void);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	300
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	301 octave_idx_type xelem (octave_idx_type i) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	302 { return data[i]; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	303
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	304 octave_idx_type checkelem (octave_idx_type i) const;
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	305
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	306 octave_idx_type length (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	307 { return len; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	308
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	309 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	310 { return std::max (n, ext); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	311
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	312 idx_class_type idx_class (void) const { return class_vector; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	313
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	314 idx_base_rep *sort_uniq_clone (bool uniq = false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	315
10273 3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	316 idx_base_rep *sort_idx (Array<octave_idx_type>&);
3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	317
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	318 dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	319 { return orig_dims; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	320
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	321 const octave_idx_type *get_data (void) const { return data; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	322
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	323 std::ostream& print (std::ostream& os) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	324
9894 83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	325 Array<double> unconvert (void) const;
83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	326
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	327 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	328
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	329 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	330
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	331 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	332 idx_vector_rep (const idx_vector_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	333
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	334 const octave_idx_type *data;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	335 octave_idx_type len, ext;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	336
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	337 // This is a trick to allow user-given zero-based arrays to be used as indices
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	338 // without copying. If the following pointer is nonzero, we do not own the data,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	339 // but rather have an Array<octave_idx_type> object that provides us the data.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	340 // Note that we need a pointer because we deferred the Array<T> declaration and
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	341 // we do not want it yet to be defined.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	342
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	343 Array<octave_idx_type> *aowner;
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	344
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	345 dim_vector orig_dims;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	346 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	347
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	348 // The logical mask index.
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	349 class OCTAVE_API idx_mask_rep : public idx_base_rep
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	350 {
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	351 public:
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	352 // Direct constructor.
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	353 idx_mask_rep (bool *_data, octave_idx_type _len,
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	354 octave_idx_type _ext, const dim_vector& od, direct)
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	355 : data (_data), len (_len), ext (_ext), aowner (0), orig_dims (od) { }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	356
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	357 idx_mask_rep (void)
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	358 : data (0), len (0), aowner (0)
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	359 { }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	360
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	361 idx_mask_rep (bool);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	362
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	363 idx_mask_rep (const Array<bool>&, octave_idx_type = -1);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	364
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	365 ~idx_mask_rep (void);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	366
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	367 octave_idx_type xelem (octave_idx_type i) const;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	368
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	369 octave_idx_type checkelem (octave_idx_type i) const;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	370
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	371 octave_idx_type length (octave_idx_type) const
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	372 { return len; }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	373
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	374 octave_idx_type extent (octave_idx_type n) const
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	375 { return std::max (n, ext); }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	376
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	377 idx_class_type idx_class (void) const { return class_mask; }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	378
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	379 idx_base_rep *sort_uniq_clone (bool = false)
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	380 { count++; return this; }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	381
10273 3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	382 idx_base_rep *sort_idx (Array<octave_idx_type>&);
3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	383
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	384 dim_vector orig_dimensions (void) const
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	385 { return orig_dims; }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	386
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	387 bool is_colon_equiv (octave_idx_type n) const
9886 cddd5c3d5f04 fix & extend special-case optimizations for indexed assignment Jaroslav Hajek <highegg@gmail.com> parents: 9879 diff changeset	388 { return len == n && ext == n; }
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	389
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	390 const bool *get_data (void) const { return data; }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	391
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	392 std::ostream& print (std::ostream& os) const;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	393
9894 83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	394 Array<bool> unconvert (void) const;
83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	395
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	396 private:
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	397
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	398 DECLARE_OCTAVE_ALLOCATOR
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	399
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	400 // No copying!
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	401 idx_mask_rep (const idx_mask_rep& idx);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	402
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	403 const bool *data;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	404 octave_idx_type len, ext;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	405
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	406 // FIXME: I'm not sure if this is a good design. Maybe it would be better to
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	407 // employ some sort of generalized iteration scheme.
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	408 mutable octave_idx_type lsti, lste;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	409
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	410 // This is a trick to allow user-given mask arrays to be used as indices
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	411 // without copying. If the following pointer is nonzero, we do not own the data,
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	412 // but rather have an Array<bool> object that provides us the data.
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	413 // Note that we need a pointer because we deferred the Array<T> declaration and
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	414 // we do not want it yet to be defined.
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	415
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	416 Array<bool> *aowner;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	417
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	418 dim_vector orig_dims;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	419 };
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	420
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	421 idx_vector (idx_base_rep *r) : rep (r) { }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	422
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	423 // The shared empty vector representation (for fast default constructor)
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	424 static idx_vector_rep *nil_rep (void)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	425 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	426 static idx_vector_rep ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	427 return &ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	428 }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	429
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	430 // The shared empty vector representation with the error flag set.
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	431 static idx_vector_rep *err_rep (void)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	432 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	433 static idx_vector_rep ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	434 ivr.err = true;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	435 return &ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	436 }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	437
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	438 // If there was an error in constructing the rep, replace it with empty vector
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	439 // for safety.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	440 void chkerr (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	441 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	442 if (rep->err)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	443 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	444 if (--rep->count == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	445 delete rep;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	446 rep = err_rep ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	447 rep->count++;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	448 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	449 }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	450
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	451 public:
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	452
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	453 // Fast empty constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	454 idx_vector (void) : rep (nil_rep ()) { rep->count++; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	455
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	456 // Zero-based constructors (for use from C++).
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	457 idx_vector (octave_idx_type i) : rep (new idx_scalar_rep (i))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	458 { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	459
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	460 idx_vector (octave_idx_type start, octave_idx_type limit,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	461 octave_idx_type step = 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	462 : rep (new idx_range_rep (start, limit, step))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	463 { chkerr (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	464
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	465 static idx_vector
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	466 make_range (octave_idx_type start, octave_idx_type step,
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	467 octave_idx_type len)
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	468 {
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	469 return idx_vector (new idx_range_rep (start, len, step, DIRECT));
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	470 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	471
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	472 idx_vector (const Array<octave_idx_type>& inda)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	473 : rep (new idx_vector_rep (inda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	474 { chkerr (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	475
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	476 // Colon is best constructed by simply copying (or referencing) this member.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	477 static const idx_vector colon;
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	478
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	479 // or passing ':' here
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	480 idx_vector (char c) : rep (new idx_colon_rep (c)) { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	481
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	482 // Conversion constructors (used by interpreter).
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	483
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	484 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	485 idx_vector (octave_int<T> x) : rep (new idx_scalar_rep (x)) { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	486
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	487 idx_vector (double x) : rep (new idx_scalar_rep (x)) { chkerr (); }
2386 4fc9fd1424a9 [project @ 1996-10-12 18:31:34 by jwe] jwe parents: 2356 diff changeset	488
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	489 idx_vector (float x) : rep (new idx_scalar_rep (x)) { chkerr (); }
3928 e8627dc4bdf2 [project @ 2002-05-03 19:56:01 by jwe] jwe parents: 3504 diff changeset	490
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	491 // A scalar bool does not necessarily map to scalar index.
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	492 idx_vector (bool x) : rep (new idx_mask_rep (x)) { chkerr (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	493
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	494 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	495 idx_vector (const Array<octave_int<T> >& nda) : rep (new idx_vector_rep (nda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	496 { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	497
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	498 idx_vector (const Array<double>& nda) : rep (new idx_vector_rep (nda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	499 { chkerr (); }
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2802 diff changeset	500
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	501 idx_vector (const Array<float>& nda) : rep (new idx_vector_rep (nda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	502 { chkerr (); }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	503
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	504 idx_vector (const Array<bool>& nda);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	505
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	506 idx_vector (const Range& r)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	507 : rep (new idx_range_rep (r))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	508 { chkerr (); }
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2802 diff changeset	509
8384 a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	510 idx_vector (const Sparse<bool>& nda) : rep (new idx_vector_rep (nda))
a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	511 { chkerr (); }
a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	512
4979 ce4e3d39d05b [project @ 2004-09-08 23:25:05 by jwe] jwe parents: 4938 diff changeset	513 idx_vector (const idx_vector& a) : rep (a.rep) { rep->count++; }
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	514
2802 bca5fbab2e52 [project @ 1997-03-09 11:02:27 by jwe] jwe parents: 2800 diff changeset	515 ~idx_vector (void)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	516 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	517 if (--rep->count == 0)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	518 delete rep;
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	519 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	520
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	521 idx_vector& operator = (const idx_vector& a)
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	522 {
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	523 if (this != &a)
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	524 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	525 if (--rep->count == 0)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	526 delete rep;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	527
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	528 rep = a.rep;
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	529 rep->count++;
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	530 }
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	531 return *this;
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	532 }
8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	533
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	534 idx_class_type idx_class (void) const { return rep->idx_class (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	535
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	536 octave_idx_type length (octave_idx_type n = 0) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	537 { return rep->length (n); }
191 b6b4d8c513fe [project @ 1993-10-29 23:41:39 by jwe] jwe parents: 164 diff changeset	538
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	539 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	540 { return rep->extent (n); }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	541
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	542 octave_idx_type xelem (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	543 { return rep->xelem (n); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	544
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	545 octave_idx_type checkelem (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	546 { return rep->checkelem (n); }
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	547
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	548 octave_idx_type operator () (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	549 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	550 #if defined (BOUNDS_CHECKING)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	551 return rep->checkelem (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	552 #else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	553 return rep->xelem (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	554 #endif
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	555 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	556
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	557 operator bool (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	558 { return ! rep->err; }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	559
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	560 bool is_colon (void) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	561 { return rep->idx_class () == class_colon; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	562
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	563 bool is_scalar (void) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	564 { return rep->idx_class () == class_scalar; }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	565
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	566 bool is_range (void) const
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	567 { return rep->idx_class () == class_range; }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	568
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	569 bool is_colon_equiv (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	570 { return rep->is_colon_equiv (n); }
3079 eb827eb9b8ff [project @ 1997-08-03 20:44:07 by jwe] jwe parents: 2847 diff changeset	571
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	572 idx_vector sorted (bool uniq = false) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	573 { return idx_vector (rep->sort_uniq_clone (uniq)); }
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 191 diff changeset	574
10273 3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	575 idx_vector sorted (Array<octave_idx_type>& sidx) const
3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	576 { return idx_vector (rep->sort_idx (sidx)); }
3a8c13b71612 implement special-case optimization for sort of index vectors Jaroslav Hajek <highegg@gmail.com> parents: 10158 diff changeset	577
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	578 dim_vector orig_dimensions (void) const { return rep->orig_dimensions (); }
4504 f6a61399bc5c [project @ 2003-09-09 17:48:00 by jwe] jwe parents: 4461 diff changeset	579
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	580 octave_idx_type orig_rows (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	581 { return orig_dimensions () (0); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	582
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	583 octave_idx_type orig_columns (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	584 { return orig_dimensions () (1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	585
2663 00b2eff19bf5 [project @ 1997-02-08 21:58:49 by jwe] jwe parents: 2386 diff changeset	586 int orig_empty (void) const
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	587 { return (! is_colon () && orig_dimensions().any_zero ()); }
2663 00b2eff19bf5 [project @ 1997-02-08 21:58:49 by jwe] jwe parents: 2386 diff changeset	588
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	589 // i/o
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	590
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	591 std::ostream& print (std::ostream& os) const { return rep->print (os); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	592
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	593 friend std::ostream& operator << (std::ostream& os, const idx_vector& a)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	594 { return a.print (os); }
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	595
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	596 // Slice with specializations. No checking of bounds!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	597 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	598 // This is equivalent to the following loop (but much faster):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	599 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	600 // for (octave_idx_type i = 0; i < idx->length (n); i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	601 // dest[i] = src[idx(i)];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	602 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	603 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	604 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	605 octave_idx_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	606 index (const T src, octave_idx_type n, T dest) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	607 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	608 octave_idx_type len = rep->length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	609 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	610 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	611 case class_colon:
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	612 copy_or_memcpy (len, src, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	613 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	614 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	615 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	616 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	617 octave_idx_type start = r->get_start (), step = r->get_step ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	618 const T *ssrc = src + start;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	619 if (step == 1)
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	620 copy_or_memcpy (len, ssrc, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	621 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	622 std::reverse_copy (ssrc - len + 1, ssrc + 1, dest);
8972 5fa53d1b6247 more indexing optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8950 diff changeset	623 else if (step == 0)
5fa53d1b6247 more indexing optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8950 diff changeset	624 std::fill_n (dest, len, *ssrc);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	625 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	626 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	627 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	628 dest[i] = ssrc[j];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	629 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	630 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	631 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	632 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	633 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	634 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	635 dest[0] = src[r->get_data ()];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	636 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	637 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	638 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	639 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	640 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	641 const octave_idx_type *data = r->get_data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	642 for (octave_idx_type i = 0; i < len; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	643 dest[i] = src[data[i]];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	644 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	645 break;
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	646 case class_mask:
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	647 {
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	648 idx_mask_rep * r = dynamic_cast<idx_mask_rep *> (rep);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	649 const bool *data = r->get_data ();
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	650 octave_idx_type ext = r->extent (0);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	651 for (octave_idx_type i = 0; i < ext; i++)
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	652 if (data[i]) *dest++ = src[i];
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	653 }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	654 break;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	655 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	656 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	657 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	658 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	659
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	660 return len;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	661 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	662
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	663 // Slice assignment with specializations. No checking of bounds!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	664 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	665 // This is equivalent to the following loop (but much faster):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	666 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	667 // for (octave_idx_type i = 0; i < idx->length (n); i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	668 // dest[idx(i)] = src[i];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	669 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	670 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	671 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	672 octave_idx_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	673 assign (const T src, octave_idx_type n, T dest) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	674 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	675 octave_idx_type len = rep->length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	676 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	677 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	678 case class_colon:
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	679 copy_or_memcpy (len, src, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	680 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	681 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	682 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	683 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	684 octave_idx_type start = r->get_start (), step = r->get_step ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	685 T *sdest = dest + start;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	686 if (step == 1)
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	687 copy_or_memcpy (len, src, sdest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	688 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	689 std::reverse_copy (src, src + len, sdest - len + 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	690 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	691 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	692 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	693 sdest[j] = src[i];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	694 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	695 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	696 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	697 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	698 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	699 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	700 dest[r->get_data ()] = src[0];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	701 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	702 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	703 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	704 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	705 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	706 const octave_idx_type *data = r->get_data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	707 for (octave_idx_type i = 0; i < len; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	708 dest[data[i]] = src[i];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	709 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	710 break;
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	711 case class_mask:
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	712 {
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	713 idx_mask_rep * r = dynamic_cast<idx_mask_rep *> (rep);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	714 const bool *data = r->get_data ();
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	715 octave_idx_type ext = r->extent (0);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	716 for (octave_idx_type i = 0; i < ext; i++)
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	717 if (data[i]) dest[i] = *src++;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	718 }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	719 break;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	720 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	721 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	722 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	723 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	724
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	725 return len;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	726 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	727
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	728 // Slice fill with specializations. No checking of bounds!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	729 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	730 // This is equivalent to the following loop (but much faster):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	731 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	732 // for (octave_idx_type i = 0; i < idx->length (n); i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	733 // dest[idx(i)] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	734 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	735 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	736 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	737 octave_idx_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	738 fill (const T& val, octave_idx_type n, T *dest) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	739 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	740 octave_idx_type len = rep->length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	741 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	742 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	743 case class_colon:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	744 std::fill (dest, dest + len, val);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	745 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	746 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	747 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	748 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	749 octave_idx_type start = r->get_start (), step = r->get_step ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	750 T *sdest = dest + start;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	751 if (step == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	752 std::fill (sdest, sdest + len, val);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	753 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	754 std::fill (sdest - len + 1, sdest + 1, val);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	755 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	756 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	757 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	758 sdest[j] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	759 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	760 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	761 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	762 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	763 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	764 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	765 dest[r->get_data ()] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	766 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	767 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	768 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	769 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	770 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	771 const octave_idx_type *data = r->get_data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	772 for (octave_idx_type i = 0; i < len; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	773 dest[data[i]] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	774 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	775 break;
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	776 case class_mask:
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	777 {
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	778 idx_mask_rep * r = dynamic_cast<idx_mask_rep *> (rep);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	779 const bool *data = r->get_data ();
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	780 octave_idx_type ext = r->extent (0);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	781 for (octave_idx_type i = 0; i < ext; i++)
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	782 if (data[i]) dest[i] = val;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	783 }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	784 break;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	785 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	786 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	787 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	788 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	789
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	790 return len;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	791 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	792
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	793 // Generic non-breakable indexed loop. The loop body should be encapsulated in a
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	794 // single functor body.
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	795 // This is equivalent to the following loop (but faster, at least for simple
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	796 // inlined bodies):
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	797 //
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	798 // for (octave_idx_type i = 0; i < idx->length (n); i++) body (idx(i));
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	799 //
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	800
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	801 template <class Functor>
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	802 void
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	803 loop (octave_idx_type n, Functor body) const
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	804 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	805 octave_idx_type len = rep->length (n);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	806 switch (rep->idx_class ())
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	807 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	808 case class_colon:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	809 for (octave_idx_type i = 0; i < len; i++) body (i);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	810 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	811 case class_range:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	812 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	813 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	814 octave_idx_type start = r->get_start (), step = r->get_step ();
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	815 octave_idx_type i, j;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	816 if (step == 1)
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	817 for (i = start, j = start + len; i < j; i++) body (i);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	818 else if (step == -1)
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	819 for (i = start, j = start - len; i > j; i--) body (i);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	820 else
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	821 for (i = 0, j = start; i < len; i++, j += step) body (j);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	822 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	823 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	824 case class_scalar:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	825 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	826 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	827 body (r->get_data ());
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	828 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	829 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	830 case class_vector:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	831 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	832 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	833 const octave_idx_type *data = r->get_data ();
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	834 for (octave_idx_type i = 0; i < len; i++) body (data[i]);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	835 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	836 break;
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	837 case class_mask:
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	838 {
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	839 idx_mask_rep * r = dynamic_cast<idx_mask_rep *> (rep);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	840 const bool *data = r->get_data ();
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	841 octave_idx_type ext = r->extent (0);
9985 43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	842 for (octave_idx_type i = 0; i < ext; i++)
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	843 if (data[i]) body (i);
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	844 }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	845 break;
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	846 default:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	847 assert (false);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	848 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	849 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	850
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	851 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	852
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	853 // Generic breakable indexed loop. The loop body should be encapsulated in a
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	854 // single functor body.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	855 // This is equivalent to the following loop (but faster, at least for simple
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	856 // inlined bodies):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	857 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	858 // for (octave_idx_type i = 0; i < idx->length (n); i++)
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	859 // if (body (idx(i))) break;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	860 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	861 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	862
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	863 template <class Functor>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	864 octave_idx_type
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	865 bloop (octave_idx_type n, Functor body) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	866 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	867 octave_idx_type len = rep->length (n), ret;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	868 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	869 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	870 case class_colon:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	871 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	872 octave_idx_type i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	873 for (i = 0; i < len && body (i); i++) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	874 ret = i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	875 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	876 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	877 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	878 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	879 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	880 octave_idx_type start = r->get_start (), step = r->get_step ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	881 octave_idx_type i, j;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	882 if (step == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	883 for (i = start, j = start + len; i < j && body (i); i++) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	884 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	885 for (i = start, j = start - len; i > j && body (i); i--) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	886 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	887 for (i = 0, j = start; i < len && body (j); i++, j += step) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	888 ret = i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	889 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	890 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	891 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	892 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	893 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	894 ret = body (r->get_data ()) ? 1 : 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	895 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	896 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	897 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	898 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	899 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	900 const octave_idx_type *data = r->get_data ();
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	901 octave_idx_type i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	902 for (i = 0; i < len && body (data[i]); i++) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	903 ret = i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	904 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	905 break;
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	906 case class_mask:
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	907 {
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	908 idx_mask_rep * r = dynamic_cast<idx_mask_rep *> (rep);
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	909 const bool *data = r->get_data ();
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	910 octave_idx_type ext = r->extent (0), j = 0;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	911 for (octave_idx_type i = 0; i < ext; i++)
9985 43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	912 {
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	913 if (data[i])
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	914 {
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	915 if (body (i))
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	916 break;
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	917 else
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	918 j++;
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	919 }
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	920 }
43a29eeda994 fix idx_vector::loop for masks Jaroslav Hajek <highegg@gmail.com> parents: 9894 diff changeset	921
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	922 ret = j;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	923 }
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	924 break;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	925 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	926 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	927 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	928 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	929
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	930 return ret;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	931 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	932
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	933 // Rationale:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	934 // This method is the key to "smart indexing". When indexing cartesian
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	935 // arrays, sometimes consecutive index vectors can be reduced into a single
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	936 // index. If rows (A) = k and i.maybe_reduce (j) gives k, then A(i,j)(:) is
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	937 // equal to A(k)(:).
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	938
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	939 // If the next index can be reduced, returns true and updates this.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	940 bool maybe_reduce (octave_idx_type n, const idx_vector& j,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	941 octave_idx_type nj);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	942
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	943 bool is_cont_range (octave_idx_type n,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	944 octave_idx_type& l, octave_idx_type& u) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	945
9725 aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	946 // Returns the increment for ranges and colon, 0 for scalars and empty
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	947 // vectors, 1st difference otherwise.
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	948 octave_idx_type increment (void) const;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	949
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	950 idx_vector
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	951 complement (octave_idx_type n) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	952
8367 445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8333 diff changeset	953 bool is_permutation (octave_idx_type n) const;
445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8333 diff changeset	954
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	955 // Copies all the indices to a given array. Not allowed for colons.
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	956 void copy_data (octave_idx_type *data) const;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	957
9879 034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	958 // If the index is a mask, convert it to index vector.
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	959 idx_vector unmask (void) const;
034677ab6865 smarter treatment of mask indexing Jaroslav Hajek <highegg@gmail.com> parents: 9780 diff changeset	960
9894 83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	961 // Unconverts the index to a scalar, Range, double array or a mask.
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	962 void unconvert (idx_class_type& iclass,
9894 83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	963 double& scalar, Range& range,
83bd7f34f9da improve idx_vector->octave_value conversion Jaroslav Hajek <highegg@gmail.com> parents: 9886 diff changeset	964 Array<double>& array, Array<bool>& mask) const;
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	965
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	966 // FIXME -- these are here for compatibility. They should be removed
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	967 // when no longer in use.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	968
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	969 octave_idx_type elem (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	970 { return (*this) (n); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	971
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	972 bool is_colon_equiv (octave_idx_type n, int) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	973 { return is_colon_equiv (n); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	974
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	975 octave_idx_type
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	976 freeze (octave_idx_type z_len, const char *tag, bool resize_ok = false);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	977
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	978 void sort (bool uniq = false)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	979 { *this = sorted (uniq); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	980
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	981 octave_idx_type ones_count (void) const;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	982
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	983 octave_idx_type max (void) const { return extent (1) - 1; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	984
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	985 private:
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	986
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	987 idx_base_rep *rep;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	988
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	989 };
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	990
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	991 #endif

Mercurial > octave

annotate liboctave/idx-vector.h @ 10273:3a8c13b71612