Mercurial > hg > octave-nkf

annotate libinterp/corefcn/sub2ind.cc @ 20830:b65888ec820e draft default tip gccjit

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
dmalcom gcc jit import
author Stefan Mahr <dac922@gmx.de>
date Fri, 27 Feb 2015 16:59:36 +0100
parents f90c8372b7ba
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
1 /*
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
2
19898
4197fc428c7d maint: Update copyright notices for 2015.
John W. Eaton <jwe@octave.org>
parents: 19461
diff changeset
3 Copyright (C) 2009-2015 VZLU Prague
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
4
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
5 This file is part of Octave.
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
6
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
7 Octave is free software; you can redistribute it and/or modify it
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
8 under the terms of the GNU General Public License as published by the
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
9 Free Software Foundation; either version 3 of the License, or (at your
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
10 option) any later version.
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
11
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
12 Octave is distributed in the hope that it will be useful, but WITHOUT
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
15 for more details.
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
16
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
17 You should have received a copy of the GNU General Public License
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
18 along with Octave; see the file COPYING. If not, see
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
19 <http://www.gnu.org/licenses/>.
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
20
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
21 */
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
22
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
23 #ifdef HAVE_CONFIG_H
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
24 #include <config.h>
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
25 #endif
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
26
19461
65554f5847ac don't include oct-locbuf.h in header files unnecessarily
John W. Eaton <jwe@octave.org>
parents: 17787
diff changeset
27 #include "Array-util.h"
65554f5847ac don't include oct-locbuf.h in header files unnecessarily
John W. Eaton <jwe@octave.org>
parents: 17787
diff changeset
28 #include "oct-locbuf.h"
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
29 #include "quit.h"
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
30
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14501
diff changeset
31 #include "defun.h"
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
32 #include "error.h"
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
33 #include "gripes.h"
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
34 #include "oct-obj.h"
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
35
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
36
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11570
diff changeset
37 static dim_vector
10258
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 9666
diff changeset
38 get_dim_vector (const octave_value& val, const char *name)
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
39 {
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
40 RowVector dimsv = val.row_vector_value (false, true);
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
41 dim_vector dv;
20442
a9574e3c6e9e Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents: 20382
diff changeset
42 octave_idx_type n = dimsv.numel ();
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
43
9666
a531dec450c4 allow 1D case for sub2ind and ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents: 9479
diff changeset
44 if (n < 1)
12483
7a5aacf65f81 Rewrite error strings in src/ to use variables named in documentation.
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
45 error ("%s: dimension vector DIMS must not be empty", name);
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
46 else
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
47 {
10258
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 9666
diff changeset
48 dv.resize (std::max (n, static_cast<octave_idx_type> (2)));
9666
a531dec450c4 allow 1D case for sub2ind and ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents: 9479
diff changeset
49 dv(1) = 1;
a531dec450c4 allow 1D case for sub2ind and ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents: 9479
diff changeset
50 for (octave_idx_type i = 0; i < n; i++)
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
51 {
10258
e317791645c4 64-bit fixes
John W. Eaton <jwe@octave.org>
parents: 9666
diff changeset
52 octave_idx_type ii = dimsv(i);
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
53 if (ii == dimsv(i) && ii >= 0)
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
54 dv(i) = ii;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
55 else
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
56 {
12483
7a5aacf65f81 Rewrite error strings in src/ to use variables named in documentation.
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
57 error ("%s: dimension vector DIMS must contain integers", name);
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
58 break;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
59 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
60 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
61 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
62
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
63 return dv;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
64 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
65
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14501
diff changeset
66 DEFUN (sub2ind, args, ,
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
67 "-*- texinfo -*-\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10350
diff changeset
68 @deftypefn {Function File} {@var{ind} =} sub2ind (@var{dims}, @var{i}, @var{j})\n\
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
69 @deftypefnx {Function File} {@var{ind} =} sub2ind (@var{dims}, @var{s1}, @var{s2}, @dots{}, @var{sN})\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
70 Convert subscripts to a linear index.\n\
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
71 \n\
20382
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19898
diff changeset
72 The following example shows how to convert the two-dimensional index\n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19898
diff changeset
73 @code{(2,3)} of a 3-by-3 matrix to a linear index. The matrix is linearly\n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
parents: 19898
diff changeset
74 indexed moving from one column to next, filling up all rows in each column.\n\
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
75 \n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
76 @example\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
77 @group\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
78 linear_index = sub2ind ([3, 3], 2, 3)\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
79 @result{} 8\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
80 @end group\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
81 @end example\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
82 @seealso{ind2sub}\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
83 @end deftypefn")
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
84 {
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
85 int nargin = args.length ();
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
86 octave_value retval;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
87
9666
a531dec450c4 allow 1D case for sub2ind and ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents: 9479
diff changeset
88 if (nargin < 2)
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
89 print_usage ();
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
90 else
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
91 {
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
92 dim_vector dv = get_dim_vector (args(0), "sub2ind");
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11553
diff changeset
93 Array<idx_vector> idxa (dim_vector (nargin-1, 1));
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
94
20762
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
95 dv = dv.redim (nargin - 1);
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
96 for (int j = 0; j < nargin - 1; j++)
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
97 {
20762
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
98 if (args(j+1).is_numeric_type ())
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
99 {
20762
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
100 try
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
101 {
20762
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
102 idxa(j) = args(j+1).index_vector ();
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
103
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
104 if (j > 0 && args(j+1).dims () != args(1).dims ())
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
105 error ("sub2ind: all subscripts must be of the same size");
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
106 }
20762
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
107 catch (index_exception& e)
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
108 {
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
109 e.set_pos_if_unset (nargin-1, j+1);
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
110 e.set_var (""); // no particular variable
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
111 (*current_liboctave_error_with_id_handler)
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
112 (e.id(), e.err());
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
113 }
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
114 }
20762
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
115 else
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
116 error ("sub2ind: subscripts must be numeric");
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
117 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
118
20762
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
119 retval = sub2ind (dv, idxa);
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
120 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
121
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
122 return retval;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
123 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
124
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
125 /*
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
126 ## Test evaluation
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
127 %!test
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
128 %! s1 = [ 1 1 1 1 ; 2 2 2 2 ];
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
129 %! s2 = [ 1 1 2 2 ; 1 1 2 2 ];
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
130 %! s3 = [ 1 2 1 2 ; 1 2 1 2 ];
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
131 %! in = [ 1 101 11 111 ; 2 102 12 112 ];
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
132 %! assert (sub2ind ([10 10 10], s1, s2, s3), in);
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
133
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
134 # Test low index
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
135 %!assert (sub2ind ([10 10 10], 1, 1, 1), 1)
20749
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
136 %!error <index \(0,_,_\)> sub2ind ([10 10 10], 0, 1, 1)
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
137 %!error <index \(_,0,_\)> sub2ind ([10 10 10], 1, 0, 1)
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
138 %!error <index \(_,_,0\)> sub2ind ([10 10 10], 1, 1, 0)
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
139
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
140 # Test high index
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
141 %!assert (sub2ind ([10 10 10], 10, 10, 10), 1000)
20749
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
142 %!error <index \(11,_,_\); out of bound 10> sub2ind ([10 10 10], 11, 10, 10)
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
143 %!error <index \(_,11,_\); out of bound 10> sub2ind ([10 10 10], 10, 11, 10)
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
144 %!error <index \(_,_,11\); out of bound 10> sub2ind ([10 10 10], 10, 10, 11)
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
145
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
146 # Test high index in the trailing dimensions
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
147 %!assert (sub2ind ([10, 1], 2, 1, 1), 2)
20749
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
148 %!error <index \(_,2,_\); out of bound 1> sub2ind ([10, 1], 1, 2, 1)
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
149 %!error <index \(_,_,2\); out of bound 1> sub2ind ([10, 1], 1, 1, 2)
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
150 %!assert (sub2ind ([10 10], 2, 2, 1), 12)
20749
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
151 %!error <index \(_,_,2\); out of bound 1> sub2ind ([10 10], 2, 1, 2)
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
152 %!error <index \(_,_,2\); out of bound 1> sub2ind ([10 10], 1, 2, 2)
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
153
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
154 # Test handling of empty arguments
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
155 %!assert (sub2ind ([10 10], zeros (0,0), zeros (0,0)), zeros (0,0))
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
156 %!assert (sub2ind ([10 10], zeros (2,0), zeros (2,0)), zeros (2,0))
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
157 %!assert (sub2ind ([10 10], zeros (0,2), zeros (0,2)), zeros (0,2))
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
158 %!error <all subscripts .* same size> sub2ind ([10 10 10], zeros (0,2), zeros (2,0))
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
159
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
160 # Test handling of arguments of different size
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
161 %!error <all subscripts .* same size> sub2ind ([10 10], ones (1,2), ones (1,3))
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
162 %!error <all subscripts .* same size> sub2ind ([10 10], ones (1,2), ones (2,1))
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
163
14501
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
164 ## Test input validation
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents: 14360
diff changeset
165 %!error <dimension vector> sub2ind ([10 10.5], 1, 1)
20749
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
166 %!error <index \(1.5,_\)> sub2ind ([10 10], 1.5, 1)
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
167 %!error <index \(_,1.5\)> sub2ind ([10 10], 1, 1.5)
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
168 */
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
169
15039
e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory
Rik <rik@octave.org>
parents: 14501
diff changeset
170 DEFUN (ind2sub, args, nargout,
17787
175b392e91fe Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents: 17744
diff changeset
171 "-*- texinfo -*-\n\
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
172 @deftypefn {Function File} {[@var{s1}, @var{s2}, @dots{}, @var{sN}] =} ind2sub (@var{dims}, @var{ind})\n\
11553
01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory.
Rik <octave@nomad.inbox5.com>
parents: 11523
diff changeset
173 Convert a linear index to subscripts.\n\
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
174 \n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
175 The following example shows how to convert the linear index @code{8}\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
176 in a 3-by-3 matrix into a subscript. The matrix is linearly indexed\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
177 moving from one column to next, filling up all rows in each column.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10350
diff changeset
178 \n\
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
179 @example\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
180 @group\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
181 [r, c] = ind2sub ([3, 3], 8)\n\
14360
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
182 @result{} r = 2\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
183 @result{} c = 3\n\
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
184 @end group\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
185 @end example\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
186 @seealso{sub2ind}\n\
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
187 @end deftypefn")
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
188 {
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
189 int nargin = args.length ();
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
190 octave_value_list retval;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
191
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
192 if (nargin != 2)
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
193 print_usage ();
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
194 else
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
195 {
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
196 dim_vector dv = get_dim_vector (args(0), "ind2sub");
20762
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
197
20749
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
198 try
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
199 {
20749
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
200 idx_vector idx = args(1).index_vector ();
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
201
20762
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
202 if (nargout > dv.length ())
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
203 dv = dv.redim (nargout);
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
204
f90c8372b7ba eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20749
diff changeset
205 retval = Array<octave_value> (ind2sub (dv, idx));
20749
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
206 }
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
207 catch (index_exception& e)
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
208 {
dd6345fd8a97 use exceptions for better invalid index error reporting (bug #45957)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 20442
diff changeset
209 error ("ind2sub: Invalid index %s. %s", e.idx (), e.explain ());
9479
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
210 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
211 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
212
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
213 return retval;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub
Jaroslav Hajek <highegg@gmail.com>
parents:
diff changeset
214 }