summaryrefslogtreecommitdiffstats
path: root/src/armadillo/include/armadillo_bits/fn_solve.hpp
blob: 12ca693b383695231dc7c467e257e3cd92cbe8cb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
// SPDX-License-Identifier: Apache-2.0
// 
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
// Copyright 2008-2016 National ICT Australia (NICTA)
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ------------------------------------------------------------------------


//! \addtogroup fn_solve
//! @{



//
// solve_gen


template<typename T1, typename T2>
arma_warn_unused
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Glue<T1, T2, glue_solve_gen_default> >::result
solve
  (
  const Base<typename T1::elem_type,T1>& A,
  const Base<typename T1::elem_type,T2>& B
  )
  {
  arma_extra_debug_sigprint();
  
  return Glue<T1, T2, glue_solve_gen_default>(A.get_ref(), B.get_ref());
  }



template<typename T1, typename T2>
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
solve
  (
         Mat<typename T1::elem_type>&    out,
  const Base<typename T1::elem_type,T1>& A,
  const Base<typename T1::elem_type,T2>& B
  )
  {
  arma_extra_debug_sigprint();
  
  const bool status = glue_solve_gen_default::apply(out, A.get_ref(), B.get_ref());
  
  if(status == false)
    {
    out.soft_reset();
    arma_debug_warn_level(3, "solve(): solution not found");
    }
  
  return status;
  }



template<typename T1, typename T2>
arma_warn_unused
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Glue<T1, T2, glue_solve_gen_full> >::result
solve
  (
  const Base<typename T1::elem_type,T1>& A,
  const Base<typename T1::elem_type,T2>& B,
  const solve_opts::opts&                opts
  )
  {
  arma_extra_debug_sigprint();
  
  return Glue<T1, T2, glue_solve_gen_full>(A.get_ref(), B.get_ref(), opts.flags);
  }



template<typename T1, typename T2>
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
solve
  (
         Mat<typename T1::elem_type>&    out,
  const Base<typename T1::elem_type,T1>& A,
  const Base<typename T1::elem_type,T2>& B,
  const solve_opts::opts&                opts
  )
  {
  arma_extra_debug_sigprint();
  
  const bool status = glue_solve_gen_full::apply(out, A.get_ref(), B.get_ref(), opts.flags);
  
  if(status == false)
    {
    out.soft_reset();
    arma_debug_warn_level(3, "solve(): solution not found");
    }
  
  return status;
  }



//
// solve_tri


template<typename T1, typename T2>
arma_warn_unused
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Glue<T1, T2, glue_solve_tri_default> >::result
solve
  (
  const Op<T1, op_trimat>&               A,
  const Base<typename T1::elem_type,T2>& B
  )
  {
  arma_extra_debug_sigprint();
  
  uword flags = uword(0);
  
  if(A.aux_uword_a == 0)  { flags |= solve_opts::flag_triu; }
  if(A.aux_uword_a == 1)  { flags |= solve_opts::flag_tril; }
  
  return Glue<T1, T2, glue_solve_tri_default>(A.m, B.get_ref(), flags);
  }



template<typename T1, typename T2>
arma_warn_unused
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Glue<T1, T2, glue_solve_tri_full> >::result
solve
  (
  const Op<T1, op_trimat>&               A,
  const Base<typename T1::elem_type,T2>& B,
  const solve_opts::opts&                opts
  )
  {
  arma_extra_debug_sigprint();
  
  uword flags = opts.flags;
  
  if(A.aux_uword_a == 0)  { flags |= solve_opts::flag_triu; }
  if(A.aux_uword_a == 1)  { flags |= solve_opts::flag_tril; }
  
  return Glue<T1, T2, glue_solve_tri_full>(A.m, B.get_ref(), flags);
  }



template<typename T1, typename T2>
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
solve
  (
         Mat<typename T1::elem_type>&    out,
  const   Op<T1, op_trimat>&             A,
  const Base<typename T1::elem_type,T2>& B
  )
  {
  arma_extra_debug_sigprint();
  
  uword flags = uword(0);
  
  if(A.aux_uword_a == 0)  { flags |= solve_opts::flag_triu; }
  if(A.aux_uword_a == 1)  { flags |= solve_opts::flag_tril; }
  
  const bool status = glue_solve_tri_default::apply(out, A.m, B.get_ref(), flags);
  
  if(status == false)
    {
    out.soft_reset();
    arma_debug_warn_level(3, "solve(): solution not found");
    }
  
  return status;
  }



template<typename T1, typename T2>
inline
typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
solve
  (
         Mat<typename T1::elem_type>&    out,
  const   Op<T1, op_trimat>&             A,
  const Base<typename T1::elem_type,T2>& B,
  const solve_opts::opts&                opts
  )
  {
  arma_extra_debug_sigprint();
  
  uword flags = opts.flags;
  
  if(A.aux_uword_a == 0)  { flags |= solve_opts::flag_triu; }
  if(A.aux_uword_a == 1)  { flags |= solve_opts::flag_tril; }
  
  const bool status = glue_solve_tri_full::apply(out, A.m, B.get_ref(), flags);
  
  if(status == false)
    {
    out.soft_reset();
    arma_debug_warn_level(3, "solve(): solution not found");
    }
  
  return status;
  }



//! @}