GNU Octave  3.8.0
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
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op-sm-s.cc
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1 /*
2 
3 Copyright (C) 2004-2013 David Bateman
4 Copyright (C) 1998-2004 Andy Adler
5 
6 This file is part of Octave.
7 
8 Octave is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 3 of the License, or (at your
11 option) any later version.
12 
13 Octave is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17 
18 You should have received a copy of the GNU General Public License
19 along with Octave; see the file COPYING. If not, see
20 <http://www.gnu.org/licenses/>.
21 
22 */
23 
24 #ifdef HAVE_CONFIG_H
25 #include <config.h>
26 #endif
27 
28 #include "gripes.h"
29 #include "oct-obj.h"
30 #include "ov.h"
31 #include "ov-typeinfo.h"
32 #include "ov-scalar.h"
33 #include "ops.h"
34 #include "xpow.h"
35 
36 #include "sparse-xpow.h"
37 #include "sparse-xdiv.h"
38 #include "ov-re-sparse.h"
39 
40 // sparse matrix by scalar ops.
41 
42 DEFBINOP_OP (add, sparse_matrix, scalar, +)
43 DEFBINOP_OP (sub, sparse_matrix, scalar, -)
44 DEFBINOP_OP (mul, sparse_matrix, scalar, *)
45 
46 DEFBINOP (div, sparse_matrix, scalar)
47 {
49 
50  double d = v2.double_value ();
51  octave_value retval;
52 
53  if (d == 0.0)
55 
56  retval = octave_value (v1.sparse_matrix_value () / d);
57 
58  return retval;
59 }
60 
61 DEFBINOP (pow, sparse_matrix, scalar)
62 {
64 
65  double tmp = v2.scalar_value ();
66  if (static_cast<int> (tmp) == tmp)
67  return xpow (v1.sparse_matrix_value (), tmp);
68  else
69  return xpow (v1.matrix_value (), tmp);
70 }
71 
72 DEFBINOP (ldiv, sparse_matrix, scalar)
73 {
75 
76  if (v1.rows () == 1 && v1.columns () == 1)
77  {
78  double d = v1.scalar_value ();
79 
80  if (d == 0.0)
82 
83  return octave_value (SparseMatrix(1, 1, v2.scalar_value () / d));
84  }
85  else
86  {
87  MatrixType typ = v1.matrix_type ();
89  Matrix m2 = Matrix (1, 1, v2.scalar_value ());
90  Matrix ret = xleftdiv (m1, m2, typ);
91  v1.matrix_type (typ);
92  return ret;
93  }
94 }
95 
96 DEFBINOP_FN (lt, sparse_matrix, scalar, mx_el_lt)
97 DEFBINOP_FN (le, sparse_matrix, scalar, mx_el_le)
98 DEFBINOP_FN (eq, sparse_matrix, scalar, mx_el_eq)
99 DEFBINOP_FN (ge, sparse_matrix, scalar, mx_el_ge)
100 DEFBINOP_FN (gt, sparse_matrix, scalar, mx_el_gt)
101 DEFBINOP_FN (ne, sparse_matrix, scalar, mx_el_ne)
102 
103 DEFBINOP_OP (el_mul, sparse_matrix, scalar, *)
104 
105 DEFBINOP (el_div, sparse_matrix, scalar)
106 {
108 
109  double d = v2.double_value ();
110  octave_value retval;
111 
112  if (d == 0.0)
114 
115  retval = octave_value (v1.sparse_matrix_value () / d);
116 
117  return retval;
118 }
119 
120 DEFBINOP_FN (el_pow, sparse_matrix, scalar, elem_xpow)
121 
122 DEFBINOP (el_ldiv, sparse_matrix, scalar)
123 {
125 
126  return octave_value
128 }
129 
130 DEFBINOP_FN (el_and, sparse_matrix, scalar, mx_el_and)
131 DEFBINOP_FN (el_or, sparse_matrix, scalar, mx_el_or)
132 
133 DEFCATOP (sm_s, sparse_matrix, scalar)
134 {
136  SparseMatrix tmp (1, 1, v2.scalar_value ());
137  return octave_value (v1.sparse_matrix_value (). concat (tmp, ra_idx));
138 }
139 
140 DEFASSIGNOP (assign, sparse_matrix, scalar)
141 {
143 
144  SparseMatrix tmp (1, 1, v2.scalar_value ());
145  v1.assign (idx, tmp);
146  return octave_value ();
147 }
148 
149 void
151 {
158 
171 
173 
175 }