octave: liboctave/array/Range.cc annotate

annotate liboctave/array/Range.cc @ 30835:2989202f92f8 stable

only allow range<FLOAT> to be instantiated * Range.h, Range.cc: Limit range<T> to floating point values. * range-fwd.h: Update forward declaration of range<T>. * ov-base.h, ov-base.cc, ov-range.h, ov-range.cc, ov.h, ov.cc, pt-eval.cc: Temporarily comment out code that uses range<INT> objects.

author	John W. Eaton <jwe@octave.org>
date	Thu, 17 Mar 2022 02:44:19 -0400
parents	796f54d4ddbf
children	0f968958d7d5 e88a07dec498

rev	line source
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	1 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	2 //
30564 796f54d4ddbf update Octave Project Developers copyright for the new year John W. Eaton <jwe@octave.org> parents: 30420 diff changeset	3 // Copyright (C) 1993-2022 The Octave Project Developers
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	4 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 // See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 // distribution or <https://octave.org/copyright/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	7 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	8 // This file is part of Octave.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	9 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	10 // Octave is free software: you can redistribute it and/or modify it
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	11 // under the terms of the GNU General Public License as published by
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	12 // the Free Software Foundation, either version 3 of the License, or
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	13 // (at your option) any later version.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	14 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	15 // Octave is distributed in the hope that it will be useful, but
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	16 // WITHOUT ANY WARRANTY; without even the implied warranty of
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	18 // GNU General Public License for more details.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	19 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	20 // You should have received a copy of the GNU General Public License
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	21 // along with Octave; see the file COPYING. If not, see
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	22 // <https://www.gnu.org/licenses/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 ////////////////////////////////////////////////////////////////////////
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	25
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21321 diff changeset	26 #if defined (HAVE_CONFIG_H)
21301 40de9f8f23a6 Use '#include "config.h"' rather than <config.h>. Rik <rik@octave.org> parents: 21229 diff changeset	27 # include "config.h"
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	28 #endif
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	29
23443 3f1bf237908b maint: Eliminate <cfloat.h> header from liboctave files. Rik <rik@octave.org> parents: 23398 diff changeset	30 #include <cmath>
1367 9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1360 diff changeset	31
25438 cb1606f78f6b prefer <istream>, <ostream>, or <iosfwd> to <iostream> where possible John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	32 #include <istream>
6490 0ad7655cf2bc [project @ 2007-04-05 02:44:34 by jwe] jwe parents: 6457 diff changeset	33 #include <limits>
25438 cb1606f78f6b prefer <istream>, <ostream>, or <iosfwd> to <iostream> where possible John W. Eaton <jwe@octave.org> parents: 25054 diff changeset	34 #include <ostream>
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	35
23443 3f1bf237908b maint: Eliminate <cfloat.h> header from liboctave files. Rik <rik@octave.org> parents: 23398 diff changeset	36 #include "Array-util.h"
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	37 #include "Range.h"
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	38 #include "lo-error.h"
2383 096529066838 [project @ 1996-10-12 17:50:47 by jwe] jwe parents: 1993 diff changeset	39 #include "lo-mappers.h"
096529066838 [project @ 1996-10-12 17:50:47 by jwe] jwe parents: 1993 diff changeset	40 #include "lo-utils.h"
096529066838 [project @ 1996-10-12 17:50:47 by jwe] jwe parents: 1993 diff changeset	41
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	42 namespace octave
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	43 {
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	44 template <typename T>
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	45 T xtfloor (T x, T ct)
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	46 {
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	47 // C---------FLOOR(X) is the largest integer algebraically less than
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	48 // C or equal to X; that is, the unfuzzy FLOOR function.
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	49
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	50 // DINT (X) = X - DMOD (X, 1.0);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	51 // FLOOR (X) = DINT (X) - DMOD (2.0 + DSIGN (1.0, X), 3.0);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	52
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	53 // C---------Hagerty's FL5 function follows...
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	54
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	55 T q = 1;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	56
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	57 if (x < 0)
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	58 q = 1 - ct;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	59
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	60 T rmax = q / (2 - ct);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	61
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	62 T t1 = 1 + std::floor (x);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	63 t1 = (ct / q) * (t1 < 0 ? -t1 : t1);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	64 t1 = (rmax < t1 ? rmax : t1);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	65 t1 = (ct > t1 ? ct : t1);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	66 t1 = std::floor (x + t1);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	67
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	68 if (x <= 0 \|\| (t1 - x) < rmax)
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	69 return t1;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	70 else
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	71 return t1 - 1;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	72 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	73
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	74 template <typename T>
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	75 bool xteq (T u, T v, T ct = 3 * std::numeric_limits<T>::epsilon ())
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	76 {
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	77 T tu = std::abs (u);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	78 T tv = std::abs (v);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	79
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	80 return std::abs (u - v) < ((tu > tv ? tu : tv) * ct);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	81 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	82
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	83 template <typename T>
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	84 octave_idx_type xnumel_internal (T base, T limit, T inc)
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	85 {
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	86 octave_idx_type retval = -1;
28857 43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier John W. Eaton <jwe@octave.org> parents: 28636 diff changeset	87 if (! math::isfinite (base) \|\| ! math::isfinite (inc)
43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier John W. Eaton <jwe@octave.org> parents: 28636 diff changeset	88 \|\| math::isnan (limit))
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	89 retval = -2;
28857 43ad651cf5a0 eliminate unnecessary uses of octave:: namespace qualifier John W. Eaton <jwe@octave.org> parents: 28636 diff changeset	90 else if (math::isinf (limit)
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	91 && ((inc > 0 && limit > 0)
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	92 \|\| (inc < 0 && limit < 0)))
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	93 retval = std::numeric_limits<octave_idx_type>::max () - 1;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	94 else if (inc == 0
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	95 \|\| (limit > base && inc < 0)
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	96 \|\| (limit < base && inc > 0))
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	97 {
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	98 retval = 0;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	99 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	100 else
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	101 {
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	102 T ct = 3 * std::numeric_limits<T>::epsilon ();
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	103
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	104 T tmp = xtfloor ((limit - base + inc) / inc, ct);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	105
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	106 octave_idx_type n_elt
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	107 = (tmp > 0 ? static_cast<octave_idx_type> (tmp) : 0);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	108
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	109 // If the final element that we would compute for the range is
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	110 // equal to the limit of the range, or is an adjacent floating
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	111 // point number, accept it. Otherwise, try a range with one
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	112 // fewer element. If that fails, try again with one more
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	113 // element.
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	114 //
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	115 // I'm not sure this is very good, but it seems to work better
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	116 // than just using tfloor as above. For example, without it,
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	117 // the expression 1.8:0.05:1.9 fails to produce the expected
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	118 // result of [1.8, 1.85, 1.9].
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	119
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	120 if (! xteq (base + (n_elt - 1) * inc, limit))
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	121 {
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	122 if (xteq (base + (n_elt - 2) * inc, limit))
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	123 n_elt--;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	124 else if (xteq (base + n_elt * inc, limit))
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	125 n_elt++;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	126 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	127
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	128 retval = (n_elt < std::numeric_limits<octave_idx_type>::max () - 1
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	129 ? n_elt : -1);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	130 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	131
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	132 return retval;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	133 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	134
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	135 template <typename T>
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	136 bool xall_elements_are_ints (T base, T inc, T final_val, octave_idx_type nel)
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	137 {
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	138 // If the range is empty or NaN then there are no elements so there
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	139 // can be no int elements.
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	140 if (nel == 0 \|\| math::isnan (final_val))
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	141 return false;
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	142
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	143 // If the base and increment are ints, all elements will be
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	144 // integers.
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	145 if (math::nint_big (base) == base && math::nint_big (inc) == inc)
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	146 return true;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	147
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	148 // If the range has only one element, then the base needs to be an
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	149 // integer.
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	150 if (nel == 1 && math::nint_big (base))
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	151 return true;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	152
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	153 return false;
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	154 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	155
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	156 template <typename T>
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	157 T
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	158 xfinal_value (T base, T limit, T inc, octave_idx_type nel)
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	159 {
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	160 T retval = T (0);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	161
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	162 if (nel <= 1)
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	163 return base;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	164
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	165 // If increment is 0, then numel should also be zero.
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	166
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	167 retval = base + (nel - 1) * inc;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	168
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	169 // On some machines (x86 with extended precision floating point
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	170 // arithmetic, for example) it is possible that we can overshoot
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	171 // the limit by approximately the machine precision even though
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	172 // we were very careful in our calculation of the number of
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	173 // elements. Therefore, we clip the result to the limit if it
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	174 // overshoots.
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	175
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	176 // NOTE: The test also includes equality (>= limit) to have
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	177 // expressions such as -5:1:-0 result in a -0 endpoint.
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	178
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	179 if ((inc > T (0) && retval >= limit) \|\| (inc < T (0) && retval <= limit))
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	180 retval = limit;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	181
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	182 // If all elements are integers, then ensure the final value is.
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	183 // Note that we pass the preliminary computed final value to
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	184 // xall_elements_are_ints, but it only checks whether that value is
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	185 // NaN.
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	186
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	187 if (xall_elements_are_ints (base, inc, retval, nel))
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	188 retval = std::round (retval);
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	189
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	190 return retval;
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	191 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	192
29352 03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	193 template <typename T>
03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	194 void
30420 366aa563dd2e style fixes for Range.h and Range.cc John W. Eaton <jwe@octave.org> parents: 30416 diff changeset	195 xinit (T base, T limit, T inc, bool reverse, T& final_val,
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	196 octave_idx_type& nel)
29352 03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	197 {
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	198 // Catch obvious NaN ranges.
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	199 if (math::isnan (base) \|\| math::isnan (limit) \|\| math::isnan (inc))
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	200 {
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	201 final_val = numeric_limits<T>::NaN ();
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	202 nel = 1;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	203 return;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	204 }
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	205
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	206 // Floating point numbers are always signed
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	207 if (reverse)
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	208 inc = -inc;
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	209
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	210 // Catch empty ranges.
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	211 if (inc == 0
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	212 \|\| (limit < base && inc > 0)
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	213 \|\| (limit > base && inc < 0))
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	214 {
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	215 nel = 0;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	216 return;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	217 }
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	218
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	219 // The following case also catches Inf values for increment when
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	220 // there will be only one element.
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	221
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	222 if ((limit <= base && base + inc < limit)
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	223 \|\| (limit >= base && base + inc > limit))
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	224 {
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	225 final_val = base;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	226 nel = 1;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	227 return;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	228 }
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	229
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	230 // Any other calculations with Inf will give us either a NaN range
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	231 // or an infinite nember of elements.
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	232
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	233 T dnel = (limit - base) / inc;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	234 if (math::isnan (dnel))
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	235 {
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	236 nel = 1;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	237 final_val = numeric_limits<T>::NaN ();
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	238 return;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	239 }
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	240
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	241 if (dnel > 0 && math::isinf (dnel))
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	242 {
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	243 // FIXME: Should this be an immediate error?
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	244 nel = std::numeric_limits<octave_idx_type>::max ();
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	245
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	246 // FIXME: Will this do the right thing in all cases?
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	247 final_val = xfinal_value (base, limit, inc, nel);
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	248
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	249 return;
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	250 }
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	251
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	252 // Now that we have handled all the special cases, we can compute
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	253 // the number of elements and the final value in a way that attempts
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	254 // to avoid rounding errors as much as possible.
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	255
29352 03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	256 nel = xnumel_internal (base, limit, inc);
03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	257 final_val = xfinal_value (base, limit, inc, nel);
03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	258 }
03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	259
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	260 template <typename T>
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	261 void
30420 366aa563dd2e style fixes for Range.h and Range.cc John W. Eaton <jwe@octave.org> parents: 30416 diff changeset	262 xinit (const octave_int<T>& base, const octave_int<T>& limit,
366aa563dd2e style fixes for Range.h and Range.cc John W. Eaton <jwe@octave.org> parents: 30416 diff changeset	263 const octave_int<T>& inc, bool reverse,
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	264 octave_int<T>& final_val, octave_idx_type& nel)
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	265 {
30407 597275db9c7f don't return void; pass objects by const ref instead of value John W. Eaton <jwe@octave.org> parents: 30405 diff changeset	266 // We need an integer division that is truncating decimals instead
597275db9c7f don't return void; pass objects by const ref instead of value John W. Eaton <jwe@octave.org> parents: 30405 diff changeset	267 // of rounding. So, use underlying C++ types instead of
597275db9c7f don't return void; pass objects by const ref instead of value John W. Eaton <jwe@octave.org> parents: 30405 diff changeset	268 // octave_int<T>.
597275db9c7f don't return void; pass objects by const ref instead of value John W. Eaton <jwe@octave.org> parents: 30405 diff changeset	269
597275db9c7f don't return void; pass objects by const ref instead of value John W. Eaton <jwe@octave.org> parents: 30405 diff changeset	270 // FIXME: The numerator might underflow or overflow. Add checks for
597275db9c7f don't return void; pass objects by const ref instead of value John W. Eaton <jwe@octave.org> parents: 30405 diff changeset	271 // that.
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	272 if (reverse)
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	273 {
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	274 nel = ((inc == octave_int<T> (0)
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	275 \|\| (limit > base && inc > octave_int<T> (0))
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	276 \|\| (limit < base && inc < octave_int<T> (0)))
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	277 ? 0
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	278 : (base.value () - limit.value () + inc.value ())
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	279 / inc.value ());
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	280
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	281 final_val = base - (nel - 1) * inc;
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	282 }
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	283 else
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	284 {
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	285 nel = ((inc == octave_int<T> (0)
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	286 \|\| (limit > base && inc < octave_int<T> (0))
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	287 \|\| (limit < base && inc > octave_int<T> (0)))
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	288 ? 0
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	289 : (limit.value () - base.value () + inc.value ())
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	290 / inc.value ());
30407 597275db9c7f don't return void; pass objects by const ref instead of value John W. Eaton <jwe@octave.org> parents: 30405 diff changeset	291
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	292 final_val = base + (nel - 1) * inc;
4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	293 }
30407 597275db9c7f don't return void; pass objects by const ref instead of value John W. Eaton <jwe@octave.org> parents: 30405 diff changeset	294 }
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	295
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	296 template <typename T>
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	297 bool
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	298 xis_storable (T base, T limit, octave_idx_type nel)
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	299 {
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	300 return ! (nel > 1 && (math::isinf (base) \|\| math::isinf (limit)));
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	301 }
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	302
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	303 template <>
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	304 bool
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	305 range<double>::all_elements_are_ints (void) const
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	306 {
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	307 return xall_elements_are_ints (m_base, m_increment, m_final, m_numel);
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	308 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	309
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	310 template <>
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	311 bool
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	312 range<float>::all_elements_are_ints (void) const
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	313 {
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	314 return xall_elements_are_ints (m_base, m_increment, m_final, m_numel);
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	315 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	316
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	317 template <>
29352 03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	318 void
03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	319 range<double>::init (void)
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	320 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	321 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	322 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	323
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	324 template <>
29352 03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	325 void
03c283f73b9a specialize range<T>::init instead of defining get_numel and get_final_value John W. Eaton <jwe@octave.org> parents: 29351 diff changeset	326 range<float>::init (void)
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	327 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	328 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	329 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	330
30835 2989202f92f8 only allow range<FLOAT> to be instantiated John W. Eaton <jwe@octave.org> parents: 30564 diff changeset	331 // For now, only define for float and double.
2989202f92f8 only allow range<FLOAT> to be instantiated John W. Eaton <jwe@octave.org> parents: 30564 diff changeset	332
2989202f92f8 only allow range<FLOAT> to be instantiated John W. Eaton <jwe@octave.org> parents: 30564 diff changeset	333 #if 0
2989202f92f8 only allow range<FLOAT> to be instantiated John W. Eaton <jwe@octave.org> parents: 30564 diff changeset	334
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	335 template <>
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	336 void
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	337 range<octave_int8>::init (void)
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	338 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	339 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	340 }
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	341
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	342 template <>
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	343 void
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	344 range<octave_int16>::init (void)
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	345 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	346 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	347 }
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	348
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	349 template <>
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	350 void
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	351 range<octave_int32>::init (void)
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	352 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	353 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	354 }
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	355
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	356 template <>
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	357 void
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	358 range<octave_int64>::init (void)
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	359 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	360 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	361 }
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	362
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	363 template <>
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	364 void
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	365 range<octave_uint8>::init (void)
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	366 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	367 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	368 }
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	369
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	370 template <>
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	371 void
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	372 range<octave_uint16>::init (void)
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	373 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	374 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	375 }
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	376
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	377 template <>
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	378 void
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	379 range<octave_uint32>::init (void)
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	380 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	381 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	382 }
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	383
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	384 template <>
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	385 void
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	386 range<octave_uint64>::init (void)
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	387 {
30416 4736bc8e9804 Allow descending ranges of all integer types (bug #61132). Markus Mützel <markus.muetzel@gmx.de> parents: 30407 diff changeset	388 xinit (m_base, m_limit, m_increment, m_reverse, m_final, m_numel);
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	389 }
20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	390
30835 2989202f92f8 only allow range<FLOAT> to be instantiated John W. Eaton <jwe@octave.org> parents: 30564 diff changeset	391 #endif
2989202f92f8 only allow range<FLOAT> to be instantiated John W. Eaton <jwe@octave.org> parents: 30564 diff changeset	392
30405 20cefb3b0da6 range: Use specialization of init function for octave_int<T> types (bug #61300). Markus Mützel <markus.muetzel@gmx.de> parents: 30394 diff changeset	393 template <>
29353 715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	394 bool
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	395 range<double>::is_storable (void) const
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	396 {
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	397 return xis_storable (m_base, m_limit, m_numel);
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	398 }
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	399
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	400 template <>
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	401 bool
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	402 range<float>::is_storable (void) const
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	403 {
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	404 return xis_storable (m_base, m_limit, m_numel);
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	405 }
715344f405f0 improve handling of nan, infinite value, and empty ranges (bug #59229) John W. Eaton <jwe@octave.org> parents: 29352 diff changeset	406
29351 326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	407 template <typename T>
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	408 octave_idx_type
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	409 xnnz (T base, T limit, T inc, T final_val, octave_idx_type nel)
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	410 {
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	411 // Note that the order of the following checks matters.
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	412
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	413 // If there are no elements, there can be no non-zero elements.
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	414 if (nel == 0)
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	415 return 0;
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	416
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	417 // All elements have the same sign, hence there are no zeros.
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	418 if ((base > 0 && limit > 0) \|\| (base < 0 && limit < 0))
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	419 return nel;
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	420
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	421 // All elements are equal (inc = 0) but we know from the previous
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	422 // condition that they are not positive or negative, therefore all
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	423 // elements are zero.
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	424 if (inc == 0)
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	425 return 0;
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	426
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	427 // Exactly one zero at beginning or end of range.
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	428 if (base == 0 \|\| final_val == 0)
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	429 return nel - 1;
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	430
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	431 // Range crosses negative/positive without hitting zero.
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	432 // FIXME: Is this test sufficiently tolerant or do we need to be
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	433 // more careful?
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	434 if (math::mod (-base, inc) != 0)
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	435 return nel;
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	436
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	437 // Range crosses negative/positive and hits zero.
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	438 return nel - 1;
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	439 }
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	440
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	441 template <>
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	442 octave_idx_type
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	443 range<double>::nnz (void) const
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	444 {
29351 326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	445 return xnnz (m_base, m_limit, m_increment, m_final, m_numel);
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	446 }
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	447
29351 326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	448 template <>
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	449 octave_idx_type
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	450 range<float>::nnz (void) const
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	451 {
326a7ca62c43 also define range<float>::nnz specialization John W. Eaton <jwe@octave.org> parents: 28857 diff changeset	452 return xnnz (m_base, m_limit, m_increment, m_final, m_numel);
28635 b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	453 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	454 }
b6371946f106 new template for range objects John W. Eaton <jwe@octave.org> parents: 28628 diff changeset	455
2383 096529066838 [project @ 1996-10-12 17:50:47 by jwe] jwe parents: 1993 diff changeset	456 bool
096529066838 [project @ 1996-10-12 17:50:47 by jwe] jwe parents: 1993 diff changeset	457 Range::all_elements_are_ints (void) const
096529066838 [project @ 1996-10-12 17:50:47 by jwe] jwe parents: 1993 diff changeset	458 {
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	459 // If the base and increment are ints, the final value in the range will also
fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	460 // be an integer, even if the limit is not. If there is one or fewer
fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	461 // elements only the base needs to be an integer.
2383 096529066838 [project @ 1996-10-12 17:50:47 by jwe] jwe parents: 1993 diff changeset	462
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	463 return (! (octave::math::isnan (m_base) \|\| octave::math::isnan (m_inc))
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	464 && (octave::math::nint_big (m_base) == m_base \|\| m_numel < 1)
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	465 && (octave::math::nint_big (m_inc) == m_inc \|\| m_numel <= 1));
2383 096529066838 [project @ 1996-10-12 17:50:47 by jwe] jwe parents: 1993 diff changeset	466 }
645 21cb3c7dc9e3 [project @ 1994-08-24 06:19:54 by jwe] jwe parents: 461 diff changeset	467
24859 00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	468 octave_idx_type
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	469 Range::nnz (void) const
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	470 {
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	471 octave_idx_type retval = 0;
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	472
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	473 if (! isempty ())
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	474 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	475 if ((m_base > 0.0 && m_limit > 0.0) \|\| (m_base < 0.0 && m_limit < 0.0))
24859 00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	476 {
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	477 // All elements have the same sign, hence there are no zeros.
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	478 retval = m_numel;
24859 00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	479 }
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	480 else if (m_inc != 0.0)
24859 00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	481 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	482 if (m_base == 0.0 \|\| m_limit == 0.0)
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	483 // Exactly one zero at beginning or end of range.
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	484 retval = m_numel - 1;
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	485 else if ((m_base / m_inc) != std::floor (m_base / m_inc))
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	486 // Range crosses negative/positive without hitting zero.
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	487 retval = m_numel;
24859 00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	488 else
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	489 // Range crosses negative/positive and hits zero.
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	490 retval = m_numel - 1;
24859 00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	491 }
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	492 else
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	493 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	494 // All elements are equal (m_inc = 0) but not positive or negative,
24859 00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	495 // therefore all elements are zero.
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	496 retval = 0;
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	497 }
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	498 }
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	499
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	500 return retval;
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	501 }
00ecff875f8a Add nnz implementation for Range type (bug #53185). maorshutman <maorus12@gmail.com> parents: 24799 diff changeset	502
645 21cb3c7dc9e3 [project @ 1994-08-24 06:19:54 by jwe] jwe parents: 461 diff changeset	503 Matrix
21cb3c7dc9e3 [project @ 1994-08-24 06:19:54 by jwe] jwe parents: 461 diff changeset	504 Range::matrix_value (void) const
21cb3c7dc9e3 [project @ 1994-08-24 06:19:54 by jwe] jwe parents: 461 diff changeset	505 {
28524 455fe4a6f22c deprecate arithmetic operators for ranges; eliminate use in Octave John W. Eaton <jwe@octave.org> parents: 28402 diff changeset	506 Matrix retval (1, m_numel);
20531 dcfbf4c1c3c8 eliminate trailing whitespace and tabs from sources John W. Eaton <jwe@octave.org> parents: 20513 diff changeset	507
28628 83172e1c77f2 refactor octave_read_* and octave_write_* functions John W. Eaton <jwe@octave.org> parents: 28592 diff changeset	508 if (m_numel > 0)
645 21cb3c7dc9e3 [project @ 1994-08-24 06:19:54 by jwe] jwe parents: 461 diff changeset	509 {
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	510 // The first element must always be exactly the base.
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	511 // E.g, -0 would otherwise become +0 in the loop (-0 + 0*increment).
28628 83172e1c77f2 refactor octave_read_* and octave_write_* functions John W. Eaton <jwe@octave.org> parents: 28592 diff changeset	512 retval(0) = m_base;
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	513
28628 83172e1c77f2 refactor octave_read_* and octave_write_* functions John W. Eaton <jwe@octave.org> parents: 28592 diff changeset	514 double b = m_base;
83172e1c77f2 refactor octave_read_* and octave_write_* functions John W. Eaton <jwe@octave.org> parents: 28592 diff changeset	515 double increment = m_inc;
83172e1c77f2 refactor octave_read_* and octave_write_* functions John W. Eaton <jwe@octave.org> parents: 28592 diff changeset	516 for (octave_idx_type i = 1; i < m_numel - 1; i++)
83172e1c77f2 refactor octave_read_* and octave_write_* functions John W. Eaton <jwe@octave.org> parents: 28592 diff changeset	517 retval.xelem (i) = b + i * increment;
4791 62f2fb593455 [project @ 2004-02-20 18:02:59 by jwe] jwe parents: 4192 diff changeset	518
28628 83172e1c77f2 refactor octave_read_* and octave_write_* functions John W. Eaton <jwe@octave.org> parents: 28592 diff changeset	519 retval.xelem (m_numel - 1) = m_limit;
645 21cb3c7dc9e3 [project @ 1994-08-24 06:19:54 by jwe] jwe parents: 461 diff changeset	520 }
21cb3c7dc9e3 [project @ 1994-08-24 06:19:54 by jwe] jwe parents: 461 diff changeset	521
28524 455fe4a6f22c deprecate arithmetic operators for ranges; eliminate use in Octave John W. Eaton <jwe@octave.org> parents: 28402 diff changeset	522 return retval;
645 21cb3c7dc9e3 [project @ 1994-08-24 06:19:54 by jwe] jwe parents: 461 diff changeset	523 }
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	524
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	525 double
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	526 Range::checkelem (octave_idx_type i) const
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	527 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	528 if (i < 0 \|\| i >= m_numel)
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	529 octave::err_index_out_of_range (2, 2, i+1, m_numel, dims ());
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	530
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	531 if (i == 0)
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	532 return m_base;
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	533 else if (i < m_numel - 1)
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	534 return m_base + i * m_inc;
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	535 else
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	536 return m_limit;
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	537 }
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	538
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	539 double
24780 0d21e2a1cdfc new element access operators for Range objects John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	540 Range::checkelem (octave_idx_type i, octave_idx_type j) const
0d21e2a1cdfc new element access operators for Range objects John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	541 {
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	542 // Ranges are always row vectors.
24780 0d21e2a1cdfc new element access operators for Range objects John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	543 if (i != 0)
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	544 octave::err_index_out_of_range (1, 1, i+1, m_numel, dims ());
24780 0d21e2a1cdfc new element access operators for Range objects John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	545
0d21e2a1cdfc new element access operators for Range objects John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	546 return checkelem (j);
0d21e2a1cdfc new element access operators for Range objects John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	547 }
0d21e2a1cdfc new element access operators for Range objects John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	548
0d21e2a1cdfc new element access operators for Range objects John W. Eaton <jwe@octave.org> parents: 24534 diff changeset	549 double
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	550 Range::elem (octave_idx_type i) const
0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	551 {
0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	552 if (i == 0)
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	553 return m_base;
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	554 else if (i < m_numel - 1)
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	555 return m_base + i * m_inc;
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	556 else
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	557 return m_limit;
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	558 }
0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	559
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	560 Array<double>
30188 e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	561 Range::index (const octave::idx_vector& idx) const
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	562 {
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	563 Array<double> retval;
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	564
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	565 octave_idx_type n = m_numel;
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	566
30188 e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	567 if (idx.is_colon ())
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	568 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	569 retval = matrix_value ().reshape (dim_vector (m_numel, 1));
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	570 }
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	571 else
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	572 {
30188 e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	573 if (idx.extent (n) != n)
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	574 octave::err_index_out_of_range (1, 1, idx.extent (n), n, dims ()); // throws
10366 e5ae13b8b2c2 improve Array indexing error messages Jaroslav Hajek <highegg@gmail.com> parents: 10314 diff changeset	575
30188 e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	576 dim_vector idx_dims = idx.orig_dimensions ();
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	577 octave_idx_type idx_len = idx.length (n);
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	578
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	579 // taken from Array.cc.
30188 e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	580 if (n != 1 && idx_dims.isvector ())
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	581 idx_dims = dim_vector (1, idx_len);
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	582
30188 e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	583 retval.clear (idx_dims);
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	584
30189 41eecdf76372 * Range.h, Range.cc: Fix comments missed in previous change. John W. Eaton <jwe@octave.org> parents: 30188 diff changeset	585 // Loop over all values in IDX, executing the lambda expression
41eecdf76372 * Range.h, Range.cc: Fix comments missed in previous change. John W. Eaton <jwe@octave.org> parents: 30188 diff changeset	586 // for each index value.
30188 e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	587
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	588 double *array = retval.fortran_vec ();
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	589
30394 f3f3e3793fb5 maint: style check C++ files in liboctave/ ahead of 7.1 release. Rik <rik@octave.org> parents: 30189 diff changeset	590 idx.loop (n, [=, &array] (idx_vector i)
f3f3e3793fb5 maint: style check C++ files in liboctave/ ahead of 7.1 release. Rik <rik@octave.org> parents: 30189 diff changeset	591 {
30188 e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	592 if (i == 0)
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	593 *array++ = m_base;
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	594 else if (i < m_numel - 1)
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	595 array++ = m_base + i m_inc;
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	596 else
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	597 *array++ = m_limit;
e424d966dca7 replace rangeidx helper classes with lambda expressions John W. Eaton <jwe@octave.org> parents: 30159 diff changeset	598 });
9986 672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	599 }
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	600
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	601 return retval;
672e1b49e01e optimize indexing of ranges by single subscripts Jaroslav Hajek <highegg@gmail.com> parents: 8971 diff changeset	602 }
4810 72a6d410a14a [project @ 2004-03-03 18:49:39 by jwe] jwe parents: 4791 diff changeset	603
20228 00cf2847355d Deprecate Array::nelem() and Range::nelem() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 19697 diff changeset	604 // NOTE: max and min only return useful values if numel > 0.
00cf2847355d Deprecate Array::nelem() and Range::nelem() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 19697 diff changeset	605 // do_minmax_body() in max.cc avoids calling Range::min/max if numel == 0.
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	606
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	607 double
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	608 Range::min (void) const
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	609 {
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	610 double retval = 0.0;
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	611 if (m_numel > 0)
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	612 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	613 if (m_inc > 0)
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	614 retval = m_base;
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	615 else
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	616 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	617 retval = m_base + (m_numel - 1) * m_inc;
4791 62f2fb593455 [project @ 2004-02-20 18:02:59 by jwe] jwe parents: 4192 diff changeset	618
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	619 // Require '<=' test. See note in max ().
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	620 if (retval <= m_limit)
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	621 retval = m_limit;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	622 }
4791 62f2fb593455 [project @ 2004-02-20 18:02:59 by jwe] jwe parents: 4192 diff changeset	623
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	624 }
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	625 return retval;
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	626 }
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	627
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	628 double
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	629 Range::max (void) const
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	630 {
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	631 double retval = 0.0;
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	632 if (m_numel > 0)
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	633 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	634 if (m_inc > 0)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	635 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	636 retval = m_base + (m_numel - 1) * m_inc;
4791 62f2fb593455 [project @ 2004-02-20 18:02:59 by jwe] jwe parents: 4192 diff changeset	637
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	638 // On some machines (x86 with extended precision floating point
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	639 // arithmetic, for example) it is possible that we can overshoot the
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	640 // limit by approximately the machine precision even though we were
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	641 // very careful in our calculation of the number of elements.
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	642 // Therefore, we clip the result to the limit if it overshoots.
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	643 // The test also includes equality (>= m_limit) to have expressions
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	644 // such as -5:1:-0 result in a -0 endpoint.
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	645 if (retval >= m_limit)
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	646 retval = m_limit;
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	647 }
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	648 else
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	649 retval = m_base;
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	650 }
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	651 return retval;
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	652 }
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	653
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	654 void
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	655 Range::sort_internal (bool ascending)
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	656 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	657 if ((ascending && m_base > m_limit && m_inc < 0.0)
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	658 \|\| (! ascending && m_base < m_limit && m_inc > 0.0))
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	659 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	660 std::swap (m_base, m_limit);
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	661 m_inc = -m_inc;
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	662 }
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	663 }
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	664
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	665 void
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	666 Range::sort_internal (Array<octave_idx_type>& sidx, bool ascending)
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	667 {
20228 00cf2847355d Deprecate Array::nelem() and Range::nelem() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 19697 diff changeset	668 octave_idx_type nel = numel ();
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	669
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	670 sidx.resize (dim_vector (1, nel));
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	671
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	672 octave_idx_type *psidx = sidx.fortran_vec ();
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	673
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	674 bool reverse = false;
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	675
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	676 if ((ascending && m_base > m_limit && m_inc < 0.0)
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	677 \|\| (! ascending && m_base < m_limit && m_inc > 0.0))
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	678 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	679 std::swap (m_base, m_limit);
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	680 m_inc = -m_inc;
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	681 reverse = true;
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	682 }
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	683
23450 855122b993da maint: Wrap tertiary operator in parentheses "(COND ? x : y)". Rik <rik@octave.org> parents: 23443 diff changeset	684 octave_idx_type tmp = (reverse ? nel - 1 : 0);
855122b993da maint: Wrap tertiary operator in parentheses "(COND ? x : y)". Rik <rik@octave.org> parents: 23443 diff changeset	685 octave_idx_type stp = (reverse ? -1 : 1);
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	686
7467 ba4214856f9f avoid shadow warning John W. Eaton <jwe@octave.org> parents: 7463 diff changeset	687 for (octave_idx_type i = 0; i < nel; i++, tmp += stp)
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	688 psidx[i] = tmp;
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	689 }
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	690
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	691 Matrix
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7467 diff changeset	692 Range::diag (octave_idx_type k) const
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7467 diff changeset	693 {
8971 967a692ddfe2 fix range arithmetics Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	694 return matrix_value ().diag (k);
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7467 diff changeset	695 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7467 diff changeset	696
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	697 Range
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	698 Range::sort (octave_idx_type dim, sortmode mode) const
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	699 {
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	700 Range retval = *this;
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	701
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	702 if (dim == 1)
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	703 {
7463 2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7458 diff changeset	704 if (mode == ASCENDING)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	705 retval.sort_internal (true);
7463 2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7458 diff changeset	706 else if (mode == DESCENDING)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	707 retval.sort_internal (false);
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	708 }
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	709 else if (dim != 0)
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	710 (*current_liboctave_error_handler) ("Range::sort: invalid dimension");
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	711
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	712 return retval;
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	713 }
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	714
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	715 Range
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	716 Range::sort (Array<octave_idx_type>& sidx, octave_idx_type dim,
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	717 sortmode mode) const
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	718 {
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	719 Range retval = *this;
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	720
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	721 if (dim == 1)
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	722 {
7463 2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7458 diff changeset	723 if (mode == ASCENDING)
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	724 retval.sort_internal (sidx, true);
7463 2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7458 diff changeset	725 else if (mode == DESCENDING)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	726 retval.sort_internal (sidx, false);
7458 1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	727 }
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	728 else if (dim != 0)
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	729 (*current_liboctave_error_handler) ("Range::sort: invalid dimension");
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	730
1032e24f199f make sort work for ranges John W. Eaton <jwe@octave.org> parents: 7231 diff changeset	731 return retval;
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	732 }
380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 3 diff changeset	733
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8589 diff changeset	734 sortmode
23588 0549061d35b9 maint: Deprecate is_sorted and replace with issorted. Rik <rik@octave.org> parents: 23577 diff changeset	735 Range::issorted (sortmode mode) const
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8589 diff changeset	736 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	737 if (m_numel > 1 && m_inc > 0)
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	738 mode = (mode == DESCENDING) ? UNSORTED : ASCENDING;
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	739 else if (m_numel > 1 && m_inc < 0)
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8589 diff changeset	740 mode = (mode == ASCENDING) ? UNSORTED : DESCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8589 diff changeset	741 else
26444 5c91daa02f87 Fix static analyzer detected issues with UNSORTED enum (bug #55347). Rik <rik@octave.org> parents: 26376 diff changeset	742 mode = (mode == UNSORTED) ? ASCENDING : mode;
8742 d2b06871afac add missing return statement Jaroslav Hajek <highegg@gmail.com> parents: 8721 diff changeset	743
d2b06871afac add missing return statement Jaroslav Hajek <highegg@gmail.com> parents: 8721 diff changeset	744 return mode;
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8589 diff changeset	745 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8589 diff changeset	746
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	747 void
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	748 Range::set_base (double b)
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	749 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	750 if (m_base != b)
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	751 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	752 m_base = b;
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	753
21321 79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	754 init ();
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	755 }
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	756 }
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	757
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	758 void
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	759 Range::set_limit (double l)
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	760 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	761 if (m_limit != l)
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	762 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	763 m_limit = l;
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	764
21321 79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	765 init ();
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	766 }
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	767 }
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	768
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	769 void
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	770 Range::set_inc (double i)
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	771 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	772 if (m_inc != i)
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	773 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	774 m_inc = i;
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	775
21321 79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	776 init ();
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	777 }
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	778 }
96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	779
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	780 std::ostream&
5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	781 operator << (std::ostream& os, const Range& a)
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	782 {
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	783 double b = a.base ();
28636 a3db48e66ef8 use Range::increment instead of Range::inc John W. Eaton <jwe@octave.org> parents: 28635 diff changeset	784 double increment = a.increment ();
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	785 octave_idx_type nel = a.numel ();
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	786
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	787 if (nel > 1)
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	788 {
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	789 // First element must be the base exactly (e.g., -0).
23807 336f89b6208b Use character literals 'c' rather than string literals "c" when possible. Rik <rik@octave.org> parents: 23662 diff changeset	790 os << b << ' ';
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	791 for (octave_idx_type i = 1; i < nel-1; i++)
23807 336f89b6208b Use character literals 'c' rather than string literals "c" when possible. Rik <rik@octave.org> parents: 23662 diff changeset	792 os << b + i * increment << ' ';
16169 0303fda3e929 Fix range behavior with -0 endpoints (bug #38423) Rik <rik@octave.org> parents: 15271 diff changeset	793 }
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	794
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	795 // Print out the last element exactly, rather than a calculated last element.
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	796 os << a.m_limit << "\n";
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	797
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	798 return os;
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	799 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	800
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	801 std::istream&
5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	802 operator >> (std::istream& is, Range& a)
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	803 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	804 is >> a.m_base;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	805 if (is)
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	806 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	807 double tmp_limit;
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	808 is >> tmp_limit;
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	809
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	810 if (is)
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	811 is >> a.m_inc;
20513 96153b16febe Overhaul Range object in liboctave. Rik <rik@octave.org> parents: 20457 diff changeset	812
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	813 // Clip the m_limit to the true limit, rebuild numel, clear cache
09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	814 a.set_limit (tmp_limit);
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	815 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	816
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	817 return is;
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	818 }
9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	819
29954 4c88a452519c rename OCTAVE_USE_DEPRECATED_FUNCTIONS macro and attempt to make it work John W. Eaton <jwe@octave.org> parents: 29569 diff changeset	820 // DEPRECATED in Octave 7.
4c88a452519c rename OCTAVE_USE_DEPRECATED_FUNCTIONS macro and attempt to make it work John W. Eaton <jwe@octave.org> parents: 29569 diff changeset	821 Range operator - (const Range& r)
2599 9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe] jwe parents: 2383 diff changeset	822 {
28636 a3db48e66ef8 use Range::increment instead of Range::inc John W. Eaton <jwe@octave.org> parents: 28635 diff changeset	823 return Range (-r.base (), -r.limit (), -r.increment (), r.numel ());
2599 9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe] jwe parents: 2383 diff changeset	824 }
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe] jwe parents: 2383 diff changeset	825
29954 4c88a452519c rename OCTAVE_USE_DEPRECATED_FUNCTIONS macro and attempt to make it work John W. Eaton <jwe@octave.org> parents: 29569 diff changeset	826 // DEPRECATED in Octave 7.
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	827 Range operator + (double x, const Range& r)
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	828 {
28636 a3db48e66ef8 use Range::increment instead of Range::inc John W. Eaton <jwe@octave.org> parents: 28635 diff changeset	829 return Range (x + r.base (), x + r.limit (), r.increment (), r.numel ());
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	830 }
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	831
29954 4c88a452519c rename OCTAVE_USE_DEPRECATED_FUNCTIONS macro and attempt to make it work John W. Eaton <jwe@octave.org> parents: 29569 diff changeset	832 // DEPRECATED in Octave 7.
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	833 Range operator + (const Range& r, double x)
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	834 {
28636 a3db48e66ef8 use Range::increment instead of Range::inc John W. Eaton <jwe@octave.org> parents: 28635 diff changeset	835 return Range (r.base () + x, r.limit () + x, r.increment (), r.numel ());
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	836 }
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	837
29954 4c88a452519c rename OCTAVE_USE_DEPRECATED_FUNCTIONS macro and attempt to make it work John W. Eaton <jwe@octave.org> parents: 29569 diff changeset	838 // DEPRECATED in Octave 7.
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	839 Range operator - (double x, const Range& r)
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	840 {
28636 a3db48e66ef8 use Range::increment instead of Range::inc John W. Eaton <jwe@octave.org> parents: 28635 diff changeset	841 return Range (x - r.base (), x - r.limit (), -r.increment (), r.numel ());
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	842 }
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	843
29954 4c88a452519c rename OCTAVE_USE_DEPRECATED_FUNCTIONS macro and attempt to make it work John W. Eaton <jwe@octave.org> parents: 29569 diff changeset	844 // DEPRECATED in Octave 7.
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	845 Range operator - (const Range& r, double x)
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	846 {
28636 a3db48e66ef8 use Range::increment instead of Range::inc John W. Eaton <jwe@octave.org> parents: 28635 diff changeset	847 return Range (r.base () - x, r.limit () - x, r.increment (), r.numel ());
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	848 }
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	849
29954 4c88a452519c rename OCTAVE_USE_DEPRECATED_FUNCTIONS macro and attempt to make it work John W. Eaton <jwe@octave.org> parents: 29569 diff changeset	850 // DEPRECATED in Octave 7.
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	851 Range operator * (double x, const Range& r)
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	852 {
28636 a3db48e66ef8 use Range::increment instead of Range::inc John W. Eaton <jwe@octave.org> parents: 28635 diff changeset	853 return Range (x * r.base (), x * r.limit (), x * r.increment (), r.numel ());
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	854 }
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	855
29954 4c88a452519c rename OCTAVE_USE_DEPRECATED_FUNCTIONS macro and attempt to make it work John W. Eaton <jwe@octave.org> parents: 29569 diff changeset	856 // DEPRECATED in Octave 7.
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	857 Range operator * (const Range& r, double x)
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	858 {
28636 a3db48e66ef8 use Range::increment instead of Range::inc John W. Eaton <jwe@octave.org> parents: 28635 diff changeset	859 return Range (r.base () * x, r.limit () * x, r.increment () * x, r.numel ());
8553 c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	860 }
c7ff200e45f5 optimize range-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 7620 diff changeset	861
1546 a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	862 // C See Knuth, Art Of Computer Programming, Vol. 1, Problem 1.2.4-5.
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	863 // C
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	864 // C===Tolerant FLOOR function.
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	865 // C
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	866 // C X - is given as a Double Precision argument to be operated on.
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	867 // C It is assumed that X is represented with M mantissa bits.
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	868 // C CT - is given as a Comparison Tolerance such that
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	869 // C 0.LT.CT.LE.3-SQRT(5)/2. If the relative difference between
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	870 // C X and A whole number is less than CT, then TFLOOR is
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	871 // C returned as this whole number. By treating the
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	872 // C floating-point numbers as a finite ordered set note that
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	873 // C the heuristic EPS=2.*(-(M-1)) and CT=3EPS causes
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	874 // C arguments of TFLOOR/TCEIL to be treated as whole numbers
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	875 // C if they are exactly whole numbers or are immediately
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	876 // C adjacent to whole number representations. Since EPS, the
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	877 // C "distance" between floating-point numbers on the unit
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	878 // C interval, and M, the number of bits in X'S mantissa, exist
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	879 // C on every floating-point computer, TFLOOR/TCEIL are
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	880 // C consistently definable on every floating-point computer.
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	881 // C
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	882 // C For more information see the following references:
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	883 // C (1) P. E. Hagerty, "More On Fuzzy Floor And Ceiling," APL QUOTE
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	884 // C QUAD 8(4):20-24, June 1978. Note that TFLOOR=FL5.
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	885 // C (2) L. M. Breed, "Definitions For Fuzzy Floor And Ceiling", APL
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	886 // C QUOTE QUAD 8(3):16-23, March 1978. This paper cites FL1 through
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	887 // C FL5, the history of five years of evolutionary development of
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	888 // C FL5 - the seven lines of code below - by open collaboration
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	889 // C and corroboration of the mathematical-computing community.
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	890 // C
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	891 // C Penn State University Center for Academic Computing
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	892 // C H. D. Knoble - August, 1978.
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	893
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	894 static inline double
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	895 tfloor (double x, double ct)
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	896 {
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	897 // C---------FLOOR(X) is the largest integer algebraically less than
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	898 // C or equal to X; that is, the unfuzzy FLOOR function.
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	899
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	900 // DINT (X) = X - DMOD (X, 1.0);
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	901 // FLOOR (X) = DINT (X) - DMOD (2.0 + DSIGN (1.0, X), 3.0);
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	902
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	903 // C---------Hagerty's FL5 function follows...
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	904
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	905 double q = 1.0;
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	906
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	907 if (x < 0.0)
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	908 q = 1.0 - ct;
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	909
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	910 double rmax = q / (2.0 - ct);
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	911
21942 aab79a1885cc limit gnulib headers to liboctave/wrappers directory John W. Eaton <jwe@octave.org> parents: 21782 diff changeset	912 double t1 = 1.0 + std::floor (x);
1546 a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	913 t1 = (ct / q) * (t1 < 0.0 ? -t1 : t1);
23450 855122b993da maint: Wrap tertiary operator in parentheses "(COND ? x : y)". Rik <rik@octave.org> parents: 23443 diff changeset	914 t1 = (rmax < t1 ? rmax : t1);
855122b993da maint: Wrap tertiary operator in parentheses "(COND ? x : y)". Rik <rik@octave.org> parents: 23443 diff changeset	915 t1 = (ct > t1 ? ct : t1);
21942 aab79a1885cc limit gnulib headers to liboctave/wrappers directory John W. Eaton <jwe@octave.org> parents: 21782 diff changeset	916 t1 = std::floor (x + t1);
1546 a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	917
1555 6935e817fd25 [project @ 1995-10-11 05:49:55 by jwe] jwe parents: 1548 diff changeset	918 if (x <= 0.0 \|\| (t1 - x) < rmax)
1546 a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	919 return t1;
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	920 else
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	921 return t1 - 1.0;
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	922 }
a272c4056bab [project @ 1995-10-07 03:38:40 by jwe] jwe parents: 1367 diff changeset	923
3753 f751e43de300 [project @ 2000-12-14 03:01:23 by jwe] jwe parents: 3751 diff changeset	924 static inline bool
17769 49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	925 teq (double u, double v,
49a5a4be04a1 maint: Use GNU style coding conventions for code in liboctave/ Rik <rik@octave.org> parents: 17744 diff changeset	926 double ct = 3.0 * std::numeric_limits<double>::epsilon ())
3753 f751e43de300 [project @ 2000-12-14 03:01:23 by jwe] jwe parents: 3751 diff changeset	927 {
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	928 double tu = std::abs (u);
fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	929 double tv = std::abs (v);
3753 f751e43de300 [project @ 2000-12-14 03:01:23 by jwe] jwe parents: 3751 diff changeset	930
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	931 return std::abs (u - v) < ((tu > tv ? tu : tv) * ct);
3753 f751e43de300 [project @ 2000-12-14 03:01:23 by jwe] jwe parents: 3751 diff changeset	932 }
f751e43de300 [project @ 2000-12-14 03:01:23 by jwe] jwe parents: 3751 diff changeset	933
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	934 octave_idx_type
20228 00cf2847355d Deprecate Array::nelem() and Range::nelem() in favour of ::numel(). Carnë Draug <carandraug@octave.org> parents: 19697 diff changeset	935 Range::numel_internal (void) const
1360 7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1315 diff changeset	936 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	937 octave_idx_type retval = -1;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	938
28592 e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	939 if (! octave::math::isfinite (m_base) \|\| ! octave::math::isfinite (m_inc)
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	940 \|\| octave::math::isnan (m_limit))
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	941 retval = -2;
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	942 else if (octave::math::isinf (m_limit)
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	943 && ((m_inc > 0 && m_limit > 0)
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	944 \|\| (m_inc < 0 && m_limit < 0)))
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	945 retval = std::numeric_limits<octave_idx_type>::max () - 1;
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	946 else if (m_inc == 0
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	947 \|\| (m_limit > m_base && m_inc < 0)
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	948 \|\| (m_limit < m_base && m_inc > 0))
3858 de05e6bdf897 [project @ 2001-11-08 19:34:22 by jwe] jwe parents: 3753 diff changeset	949 {
de05e6bdf897 [project @ 2001-11-08 19:34:22 by jwe] jwe parents: 3753 diff changeset	950 retval = 0;
de05e6bdf897 [project @ 2001-11-08 19:34:22 by jwe] jwe parents: 3753 diff changeset	951 }
de05e6bdf897 [project @ 2001-11-08 19:34:22 by jwe] jwe parents: 3753 diff changeset	952 else
de05e6bdf897 [project @ 2001-11-08 19:34:22 by jwe] jwe parents: 3753 diff changeset	953 {
15220 61822c866ba1 use std::numeric_limits<T>::epsilon in C++ code John W. Eaton <jwe@octave.org> parents: 14138 diff changeset	954 double ct = 3.0 * std::numeric_limits<double>::epsilon ();
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	955
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	956 double tmp = tfloor ((m_limit - m_base + m_inc) / m_inc, ct);
3858 de05e6bdf897 [project @ 2001-11-08 19:34:22 by jwe] jwe parents: 3753 diff changeset	957
28592 e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	958 octave_idx_type n_elt = (tmp > 0.0
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	959 ? static_cast<octave_idx_type> (tmp) : 0);
398 167ea9ebd5a0 [project @ 1994-04-06 18:41:44 by jwe] jwe parents: 238 diff changeset	960
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	961 // If the final element that we would compute for the range is equal to
fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	962 // the limit of the range, or is an adjacent floating point number,
fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	963 // accept it. Otherwise, try a range with one fewer element. If that
fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	964 // fails, try again with one more element.
3858 de05e6bdf897 [project @ 2001-11-08 19:34:22 by jwe] jwe parents: 3753 diff changeset	965 //
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	966 // I'm not sure this is very good, but it seems to work better than just
fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	967 // using tfloor as above. For example, without it, the expression
fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	968 // 1.8:0.05:1.9 fails to produce the expected result of [1.8, 1.85, 1.9].
3753 f751e43de300 [project @ 2000-12-14 03:01:23 by jwe] jwe parents: 3751 diff changeset	969
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	970 if (! teq (m_base + (n_elt - 1) * m_inc, m_limit))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	971 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	972 if (teq (m_base + (n_elt - 2) * m_inc, m_limit))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	973 n_elt--;
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	974 else if (teq (m_base + n_elt * m_inc, m_limit))
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	975 n_elt++;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	976 }
3858 de05e6bdf897 [project @ 2001-11-08 19:34:22 by jwe] jwe parents: 3753 diff changeset	977
28592 e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	978 retval = ((n_elt < std::numeric_limits<octave_idx_type>::max ())
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	979 ? n_elt : -1);
3753 f751e43de300 [project @ 2000-12-14 03:01:23 by jwe] jwe parents: 3751 diff changeset	980 }
f751e43de300 [project @ 2000-12-14 03:01:23 by jwe] jwe parents: 3751 diff changeset	981
3858 de05e6bdf897 [project @ 2001-11-08 19:34:22 by jwe] jwe parents: 3753 diff changeset	982 return retval;
3 9a4c07481e61 [project @ 1993-08-08 01:20:23 by jwe] jwe parents: diff changeset	983 }
21321 79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	984
79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	985 double
79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	986 Range::limit_internal (void) const
79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	987 {
28592 e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	988 double new_limit = m_inc > 0 ? max () : min ();
21321 79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	989
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	990 // If result must be an integer then force the new_limit to be one.
25808 dc47c9e48801 Guarantee an integer for max of Range when base and increment are ints (bug #46859). Rik <rik@octave.org> parents: 25438 diff changeset	991 if (all_elements_are_ints ())
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	992 new_limit = std::round (new_limit);
25808 dc47c9e48801 Guarantee an integer for max of Range when base and increment are ints (bug #46859). Rik <rik@octave.org> parents: 25438 diff changeset	993
25812 fc74c8d2a584 Clean up liboctave Range implementation. Rik <rik@octave.org> parents: 25808 diff changeset	994 return new_limit;
21321 79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	995 }
79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	996
79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	997 void
79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	998 Range::init (void)
79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	999 {
28402 09a3c0e91e6e style update for Range class John W. Eaton <jwe@octave.org> parents: 28004 diff changeset	1000 m_numel = numel_internal ();
21321 79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	1001
28592 e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	1002 if (! octave::math::isinf (m_limit))
e70c859c4bff allow infinite limits on for loop ranges (bug #45143) John W. Eaton <jwe@octave.org> parents: 28524 diff changeset	1003 m_limit = limit_internal ();
21321 79a51b7e00b6 eliminate some copy and paste code fragments in the Range class John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	1004 }

Mercurial > octave

annotate liboctave/array/Range.cc @ 30835:2989202f92f8 stable