1 ////////////////////////////////////////////////////////////////////////
2 //
3 // Copyright (C) 1998-2021 The Octave Project Developers
4 //
5 // See the file COPYRIGHT.md in the top-level directory of this
6 // distribution or <https://octave.org/copyright/>.
7 //
8 // This file is part of Octave.
9 //
10 // Octave is free software: you can redistribute it and/or modify it
11 // under the terms of the GNU General Public License as published by
12 // the Free Software Foundation, either version 3 of the License, or
13 // (at your option) any later version.
14 //
15 // Octave is distributed in the hope that it will be useful, but
16 // WITHOUT ANY WARRANTY; without even the implied warranty of
17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 // GNU General Public License for more details.
19 //
20 // You should have received a copy of the GNU General Public License
21 // along with Octave; see the file COPYING. If not, see
22 // <https://www.gnu.org/licenses/>.
23 //
24 ////////////////////////////////////////////////////////////////////////
25
26 #if defined (HAVE_CONFIG_H)
27 # include "config.h"
28 #endif
29
30 #include <cinttypes>
31 #include <cstdarg>
32 #include <cstdio>
33
34 #include "lo-error.h"
35 #include "oct-sparse.h"
36 #include "sparse-util.h"
37
38 static inline void
sparse_chol_error_internal(int status,const char * file,int line,const char * message)39 sparse_chol_error_internal (int status, const char *file,
40 int line, const char *message)
41 {
42 #if defined (HAVE_CHOLMOD)
43
44 // Ignore CHOLMOD_NOT_POSDEF, since we handle that in Fchol as an
45 // error or exit status.
46 if (status != CHOLMOD_NOT_POSDEF)
47 (*current_liboctave_warning_with_id_handler)
48 ("Octave:cholmod-message", "warning %i, at line %i in file %s: %s",
49 status, line, file, message);
50
51 #else
52
53 octave_unused_parameter (status);
54 octave_unused_parameter (file);
55 octave_unused_parameter (line);
56 octave_unused_parameter (message);
57
58 #endif
59 }
60
61 // FIXME: this overload is here due to API change in SuiteSparse (3.1 -> 3.2)
62
63 void
SparseCholError(int status,char * file,int line,char * message)64 SparseCholError (int status, char *file, int line, char *message)
65 {
66 sparse_chol_error_internal (status, file, line, message);
67 }
68
69 void
SparseCholError(int status,const char * file,int line,const char * message)70 SparseCholError (int status, const char *file, int line, const char *message)
71 {
72 sparse_chol_error_internal (status, file, line, message);
73 }
74
75 int
SparseCholPrint(const char * fmt,...)76 SparseCholPrint (const char *fmt, ...)
77 {
78 va_list args;
79 va_start (args, fmt);
80 int ret = std::vfprintf (stderr, fmt, args);
81 std::fflush (stderr);
82 va_end (args);
83 return ret;
84 }
85
86 bool
sparse_indices_ok(octave_idx_type * r,octave_idx_type * c,octave_idx_type nrows,octave_idx_type ncols,octave_idx_type nnz)87 sparse_indices_ok (octave_idx_type *r, octave_idx_type *c,
88 octave_idx_type nrows, octave_idx_type ncols,
89 octave_idx_type nnz)
90 {
91 if (nnz > 0)
92 {
93 if (c[0] != 0)
94 (*current_liboctave_error_handler)
95 ("invalid sparse matrix: cidx[0] must be zero");
96
97 octave_idx_type jold = 0;
98
99 for (octave_idx_type j = 1; j < ncols+1; j++)
100 {
101 if (c[j] < c[j-1])
102 (*current_liboctave_error_handler)
103 ("invalid sparse matrix: cidx elements must appear in ascending order");
104
105 if (c[j] > nnz)
106 (*current_liboctave_error_handler)
107 ("invalid sparse matrix: cidx[%" OCTAVE_IDX_TYPE_FORMAT "] = "
108 "%" OCTAVE_IDX_TYPE_FORMAT " exceeds number of nonzero elements",
109 j, c[j]+1);
110
111 if (c[j] != jold)
112 {
113 for (octave_idx_type i = jold+1; i < c[j]; i++)
114 {
115 if (r[i] < r[i-1])
116 (*current_liboctave_error_handler)
117 ("invalid sparse matrix: ridx elements must appear "
118 "in ascending order for each column");
119
120 if (r[i] >= nrows)
121 (*current_liboctave_error_handler)
122 ("invalid sparse matrix: ridx[%" OCTAVE_IDX_TYPE_FORMAT
123 "] = %" OCTAVE_IDX_TYPE_FORMAT " out of range",
124 i, r[i]+1);
125 }
126
127 jold = c[j];
128 }
129 }
130 }
131
132 return true;
133 }
134