Mercurial > octave

annotate libinterp/corefcn/ordschur.cc @ 26353:d43ba2c21d1d stable

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
ordschur.cc: Fix static analyzer detected issues (bug #55347). * ordschur.cc (Fordschur): Call args(2).xoctave_idx_type_vector_value() rather than incorrect version without prepended 'x'.
author Rik <rik@octave.org>
date Tue, 01 Jan 2019 21:05:44 -0800
parents c7095a755185
children 00f796120a6d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
1 /*
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
2
25054
6652d3823428 maint: Update copyright dates in all source files.
John W. Eaton <jwe@octave.org>
parents: 24534
diff changeset
3 Copyright (C) 2016-2018 Sébastien Villemot <sebastien@debian.org>
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
4
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
5 This file is part of Octave.
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
6
24534
194eb4bd202b maint: Update punctuation for GPL v3 license text.
Rik <rik@octave.org>
parents: 23581
diff changeset
7 Octave is free software: you can redistribute it and/or modify it
22755
3a2b891d0b33 maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents: 22407
diff changeset
8 under the terms of the GNU General Public License as published by
24534
194eb4bd202b maint: Update punctuation for GPL v3 license text.
Rik <rik@octave.org>
parents: 23581
diff changeset
9 the Free Software Foundation, either version 3 of the License, or
22755
3a2b891d0b33 maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents: 22407
diff changeset
10 (at your option) any later version.
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
11
22755
3a2b891d0b33 maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents: 22407
diff changeset
12 Octave is distributed in the hope that it will be useful, but
3a2b891d0b33 maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents: 22407
diff changeset
13 WITHOUT ANY WARRANTY; without even the implied warranty of
3a2b891d0b33 maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents: 22407
diff changeset
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3a2b891d0b33 maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents: 22407
diff changeset
15 GNU General Public License for more details.
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
16
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
17 You should have received a copy of the GNU General Public License
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
18 along with Octave; see the file COPYING. If not, see
24534
194eb4bd202b maint: Update punctuation for GPL v3 license text.
Rik <rik@octave.org>
parents: 23581
diff changeset
19 <https://www.gnu.org/licenses/>.
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
20
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
21 */
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
22
21724
aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef"
John W. Eaton <jwe@octave.org>
parents: 21580
diff changeset
23 #if defined (HAVE_CONFIG_H)
21301
40de9f8f23a6 Use '#include "config.h"' rather than <config.h>.
Rik <rik@octave.org>
parents: 21200
diff changeset
24 # include "config.h"
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
25 #endif
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
26
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
27 #include "defun.h"
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
28 #include "error.h"
22322
93b3cdd36854 move most f77 function decls to separate header files
John W. Eaton <jwe@octave.org>
parents: 22197
diff changeset
29 #include "lo-lapack-proto.h"
20940
48b2ad5ee801 maint: Rename oct-obj.[cc|h] to ovl.[cc|h] for clarity.
Rik <rik@octave.org>
parents: 20939
diff changeset
30 #include "ovl.h"
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
31
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
32 DEFUN (ordschur, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
33 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
34 @deftypefn {} {[@var{UR}, @var{SR}] =} ordschur (@var{U}, @var{S}, @var{select})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
35 Reorders the real Schur factorization (@var{U},@var{S}) obtained with the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
36 @code{schur} function, so that selected eigenvalues appear in the upper left
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
37 diagonal blocks of the quasi triangular Schur matrix.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
38
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
39 The logical vector @var{select} specifies the selected eigenvalues as they
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
40 appear along @var{S}'s diagonal.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
41
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
42 For example, given the matrix @code{@var{A} = [1, 2; 3, 4]}, and its Schur
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
43 decomposition
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
44
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
45 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
46 [@var{U}, @var{S}] = schur (@var{A})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
47 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
48
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
49 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
50 which returns
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
51
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
52 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
53 @group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
54 @var{U} =
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
55
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
56 -0.82456 -0.56577
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
57 0.56577 -0.82456
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
58
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
59 @var{S} =
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
60
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
61 -0.37228 -1.00000
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
62 0.00000 5.37228
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
63
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
64 @end group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
65 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
66
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
67 It is possible to reorder the decomposition so that the positive eigenvalue
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
68 is in the upper left corner, by doing:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
69
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
70 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
71 [@var{U}, @var{S}] = ordschur (@var{U}, @var{S}, [0,1])
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
72 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
73
25734
c7095a755185 New function "ordeig" (patch #9670)
Sébastien Villemot <sebastien@debian.org>
parents: 25054
diff changeset
74 @seealso{schur, ordeig}
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
75 @end deftypefn */)
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
76 {
20819
f428cbe7576f eliminate unnecessary uses of nargin
John W. Eaton <jwe@octave.org>
parents: 20816
diff changeset
77 if (args.length () != 3)
20802
8bb38ba1bad6 eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20704
diff changeset
78 print_usage ();
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
79
26353
d43ba2c21d1d ordschur.cc: Fix static analyzer detected issues (bug #55347).
Rik <rik@octave.org>
parents: 25734
diff changeset
80 const Array<octave_idx_type> sel_arg = args(2).xoctave_idx_type_vector_value ("ordschur: SELECT must be an array of integers");
20703
85e5efae848a eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20172
diff changeset
81
22961
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
82 const octave_idx_type sel_n = sel_arg.numel ();
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
83
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
84 const dim_vector dimU = args(0).dims ();
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
85 const dim_vector dimS = args(1).dims ();
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20892
diff changeset
86
22961
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
87 if (sel_n != dimU(0))
20831
35241c4b696c eliminate return statements after calls to error
John W. Eaton <jwe@octave.org>
parents: 20819
diff changeset
88 error ("ordschur: SELECT must have same length as the sides of U and S");
22961
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
89 else if (sel_n != dimU(0) || sel_n != dimS(0) || sel_n != dimU(1)
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
90 || sel_n != dimS(1))
20831
35241c4b696c eliminate return statements after calls to error
John W. Eaton <jwe@octave.org>
parents: 20819
diff changeset
91 error ("ordschur: U and S must be square and of equal sizes");
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
92
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20892
diff changeset
93 octave_value_list retval;
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20892
diff changeset
94
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
95 const bool double_type = args(0).is_double_type ()
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
96 || args(1).is_double_type ();
23581
c3075ae020e1 maint: Deprecate is_complex_type and replace with iscomplex.
Rik <rik@octave.org>
parents: 23220
diff changeset
97 const bool complex_type = args(0).iscomplex ()
c3075ae020e1 maint: Deprecate is_complex_type and replace with iscomplex.
Rik <rik@octave.org>
parents: 23220
diff changeset
98 || args(1).iscomplex ();
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
99
22197
e43d83253e28 refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents: 22135
diff changeset
100 #define PREPARE_ARGS(TYPE, TYPE_M, TYPE_COND) \
22961
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
101 TYPE ## Matrix U = args(0).x ## TYPE_M ## _value \
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
102 ("ordschur: U and S must be real or complex floating point matrices"); \
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
103 TYPE ## Matrix S = args(1).x ## TYPE_M ## _value \
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
104 ("ordschur: U and S must be real or complex floating point matrices"); \
22197
e43d83253e28 refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents: 22135
diff changeset
105 TYPE ## Matrix w (dim_vector (n, 1)); \
e43d83253e28 refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents: 22135
diff changeset
106 TYPE ## Matrix work (dim_vector (n, 1)); \
22961
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
107 F77_INT m; \
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
108 F77_INT info; \
22197
e43d83253e28 refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents: 22135
diff changeset
109 TYPE_COND cond1, cond2;
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
110
22197
e43d83253e28 refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents: 22135
diff changeset
111 #define PREPARE_OUTPUT() \
e43d83253e28 refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents: 22135
diff changeset
112 if (info != 0) \
e43d83253e28 refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents: 22135
diff changeset
113 error ("ordschur: trsen failed"); \
e43d83253e28 refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents: 22135
diff changeset
114 \
e43d83253e28 refill multi-line macro definitions
John W. Eaton <jwe@octave.org>
parents: 22135
diff changeset
115 retval = ovl (U, S);
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
116
22988
cd33c785e80e put to_f77_int inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22961
diff changeset
117 F77_INT n = octave::to_f77_int (sel_n);
22961
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
118 Array<F77_INT> sel (dim_vector (n, 1));
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
119 for (F77_INT i = 0; i < n; i++)
22988
cd33c785e80e put to_f77_int inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22961
diff changeset
120 sel.xelem (i) = octave::to_f77_int (sel_arg.xelem (i));
22961
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
121
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
122 if (double_type)
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
123 {
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
124 if (complex_type)
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
125 {
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
126 PREPARE_ARGS (Complex, complex_matrix, double)
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
127
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
128 F77_XFCN (ztrsen, ztrsen,
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
129 (F77_CONST_CHAR_ARG ("N"), F77_CONST_CHAR_ARG ("V"),
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22323
diff changeset
130 sel.data (), n, F77_DBLE_CMPLX_ARG (S.fortran_vec ()), n,
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22323
diff changeset
131 F77_DBLE_CMPLX_ARG (U.fortran_vec ()), n,
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22323
diff changeset
132 F77_DBLE_CMPLX_ARG (w.fortran_vec ()), m, cond1, cond2,
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22323
diff changeset
133 F77_DBLE_CMPLX_ARG (work.fortran_vec ()), n,
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
134 info));
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20892
diff changeset
135
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
136 PREPARE_OUTPUT()
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
137 }
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
138 else
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
139 {
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
140 PREPARE_ARGS (, matrix, double)
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
141 Matrix wi (dim_vector (n, 1));
22961
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
142 Array<F77_INT> iwork (dim_vector (n, 1));
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
143
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
144 F77_XFCN (dtrsen, dtrsen,
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
145 (F77_CONST_CHAR_ARG ("N"), F77_CONST_CHAR_ARG ("V"),
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
146 sel.data (), n, S.fortran_vec (), n, U.fortran_vec (), n,
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
147 w.fortran_vec (), wi.fortran_vec (), m, cond1, cond2,
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
148 work.fortran_vec (), n, iwork.fortran_vec (), n, info));
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20892
diff changeset
149
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
150 PREPARE_OUTPUT ()
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
151 }
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
152 }
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
153 else
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
154 {
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
155 if (complex_type)
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
156 {
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
157 PREPARE_ARGS (FloatComplex, float_complex_matrix, float)
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
158
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
159 F77_XFCN (ctrsen, ctrsen,
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
160 (F77_CONST_CHAR_ARG ("N"), F77_CONST_CHAR_ARG ("V"),
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22323
diff changeset
161 sel.data (), n, F77_CMPLX_ARG (S.fortran_vec ()), n,
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22323
diff changeset
162 F77_CMPLX_ARG (U.fortran_vec ()), n,
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22323
diff changeset
163 F77_CMPLX_ARG (w.fortran_vec ()), m, cond1, cond2,
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22323
diff changeset
164 F77_CMPLX_ARG (work.fortran_vec ()), n,
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
165 info));
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20892
diff changeset
166
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
167 PREPARE_OUTPUT ()
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
168 }
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
169 else
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
170 {
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
171 PREPARE_ARGS (Float, float_matrix, float)
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
172 FloatMatrix wi (dim_vector (n, 1));
22961
0e9606b04ae0 use F77_INT instead of octave_idx_type for libinterp ordschur function
John W. Eaton <jwe@octave.org>
parents: 22755
diff changeset
173 Array<F77_INT> iwork (dim_vector (n, 1));
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
174
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
175 F77_XFCN (strsen, strsen,
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
176 (F77_CONST_CHAR_ARG ("N"), F77_CONST_CHAR_ARG ("V"),
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
177 sel.data (), n, S.fortran_vec (), n, U.fortran_vec (), n,
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
178 w.fortran_vec (), wi.fortran_vec (), m, cond1, cond2,
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
179 work.fortran_vec (), n, iwork.fortran_vec (), n, info));
20939
b17fda023ca6 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20892
diff changeset
180
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
181 PREPARE_OUTPUT ()
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
182 }
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
183 }
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
184
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
185 #undef PREPARE_ARGS
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
186 #undef PREPARE_OUTPUT
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
187
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
188 return retval;
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
189 }
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
190
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
191 /*
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
192
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
193 %!test
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
194 %! A = [1, 2, 3, -2; 4, 5, 6, -5 ; 7, 8, 9, -5; 10, 11, 12, 4 ];
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
195 %! [U, T] = schur (A);
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
196 %! [US, TS] = ordschur (U, T, [ 0, 0, 1, 1 ]);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21301
diff changeset
197 %! assert (US*TS*US', A, sqrt (eps));
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21301
diff changeset
198 %! assert (diag (T)(3:4), diag (TS)(1:2), sqrt (eps));
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
199
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
200 %!test
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
201 %! A = [1, 2, 3, -2; 4, 5, 6, -5 ; 7, 8, 9, -5; 10, 11, 12, 4 ];
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
202 %! [U, T] = schur (A);
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
203 %! [US, TS] = ordschur (single (U), single (T), [ 0, 0, 1, 1 ]);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21301
diff changeset
204 %! assert (US*TS*US', A, sqrt (eps ("single")));
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21301
diff changeset
205 %! assert (diag (T)(3:4), diag (TS)(1:2), sqrt (eps ("single")));
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
206
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
207 %!test
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
208 %! A = [1, 2, 3, -2; 4, 5, 6, -5 ; 7, 8, 9, -5; 10, 11, 12, 4+3i ];
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
209 %! [U, T] = schur (A);
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
210 %! [US, TS] = ordschur (U, T, [ 0, 0, 1, 1 ]);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21301
diff changeset
211 %! assert (US*TS*US', A, sqrt (eps));
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21301
diff changeset
212 %! assert (diag (T)(3:4), diag (TS)(1:2), sqrt (eps));
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
213
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
214 %!test
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
215 %! A = [1, 2, 3, -2; 4, 5, 6, -5 ; 7, 8, 9, -5; 10, 11, 12, 4+3i ];
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
216 %! [U, T] = schur (A);
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
217 %! [US, TS] = ordschur (single (U), single (T), [ 0, 0, 1, 1 ]);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21301
diff changeset
218 %! assert (US*TS*US', A, sqrt (eps ("single")));
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21301
diff changeset
219 %! assert (diag (T)(3:4), diag (TS)(1:2), sqrt (eps ("single")));
19747
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
220
56157a7505ed Add new ordschur function.
Sébastien Villemot <sebastien@debian.org>
parents:
diff changeset
221 */