Mercurial > octave
annotate libinterp/dldfcn/dmperm.cc @ 23795:980f39c3ab90
Use C++11 nullptr rather than 0 in code (bug #51565).
* Backend.cc, BaseControl.h, ButtonGroup.cc, CheckBoxControl.cc,
Container.cc, ContextMenu.cc, ContextMenu.h, EditControl.cc, Figure.cc,
FigureWindow.cc, ListBoxControl.cc, Menu.cc, Menu.h, MouseModeActionGroup.cc,
Object.cc, ObjectProxy.cc, Panel.cc, PopupMenuControl.cc, PushButtonControl.cc,
PushTool.cc, RadioButtonControl.cc, SliderControl.cc, TextControl.cc,
ToggleButtonControl.cc, ToggleTool.cc, ToolBar.cc, ToolBar.h, ToolBarButton.cc,
ToolBarButton.h, QTerminal.h, BlockArray.cpp, Emulation.cpp, Filter.cpp,
Filter.h, History.cpp, KeyboardTranslator.cpp, QUnixTerminalImpl.h, Screen.cpp,
ScreenWindow.cpp, ScreenWindow.h, SelfListener.h, TerminalCharacterDecoder.cpp,
TerminalModel.cpp, TerminalView.cpp, TerminalView.h, kpty.cpp, dialog.cc,
dialog.h, files-dock-widget.cc, find-files-model.h, file-editor-tab.cc,
file-editor.cc, main-window.cc, octave-dock-widget.cc, octave-gui.cc,
parser.cc, resource-manager.cc, resource-manager.h, shortcut-manager.cc,
shortcut-manager.h, workspace-model.cc, workspace-view.cc, __magick_read__.cc,
c-file-ptr-stream.cc, c-file-ptr-stream.h, call-stack.cc, call-stack.h,
daspk.cc, dasrt.cc, dassl.cc, det.cc, display.h, error.cc, ft-text-renderer.cc,
gl-render.cc, gl2ps-print.cc, graphics.in.h, help.cc, input.cc, interpreter.cc,
load-path.cc, load-save.cc, ls-hdf5.cc, ls-hdf5.h, ls-mat5.cc, lsode.cc,
mex.cc, mxarray.in.h, oct-errno.h, oct-hist.cc, oct-iostrm.h, oct-procbuf.cc,
oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h,
oct-tex-parser.in.yy, octave-link.h, pager.cc, pager.h, pr-output.cc,
procstream.h, qz.cc, sighandlers.cc, svd.cc, symtab.cc, symtab.h,
text-renderer.cc, txt-eng.h, utils.cc, variables.cc, zfstream.cc, zfstream.h,
__glpk__.cc, __init_fltk__.cc, __ode15__.cc, audiodevinfo.cc, ccolamd.cc,
colamd.cc, dmperm.cc, gzip.cc, symbfact.cc, ov-base-int.cc, ov-base-int.h,
ov-base-mat.h, ov-base.cc, ov-base.h, ov-bool-mat.cc, ov-bool-sparse.cc,
ov-bool.cc, ov-builtin.h, ov-cell.cc, ov-class.cc, ov-complex.cc, ov-cx-mat.cc,
ov-cx-sparse.cc, ov-fcn-handle.cc, ov-fcn-inline.cc, ov-fcn.cc, ov-fcn.h,
ov-float.cc, ov-flt-complex.cc, ov-flt-cx-mat.cc, ov-flt-re-mat.cc, ov-java.cc,
ov-java.h, ov-mex-fcn.cc, ov-oncleanup.cc, ov-range.cc, ov-range.h,
ov-re-mat.cc, ov-re-sparse.cc, ov-scalar.cc, ov-str-mat.cc, ov-typeinfo.cc,
ov-typeinfo.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.cc, octave.cc, bp-table.cc,
bp-table.h, jit-ir.h, jit-typeinfo.cc, lex.h, profiler.cc, pt-arg-list.cc,
pt-array-list.cc, pt-assign.cc, pt-assign.h, pt-binop.cc, pt-binop.h,
pt-cell.cc, pt-classdef.cc, pt-classdef.h, pt-colon.cc, pt-colon.h, pt-decl.cc,
pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.h, pt-fcn-handle.cc,
pt-fcn-handle.h, pt-idx.cc, pt-jit.cc, pt-loop.h, pt-mat.cc, pt-select.h,
pt-stmt.h, pt-tm-const.h, pt-unop.cc, pt-unop.h, pt.cc, Array-C.cc, Array-d.cc,
Array-f.cc, Array-fC.cc, Array-util.cc, Array.cc, Array.h, CMatrix.cc,
CSparse.cc, DiagArray2.h, MArray.h, MDiagArray2.h, MatrixType.cc, Sparse.cc,
Sparse.h, dMatrix.cc, dSparse.cc, fMatrix.cc, idx-vector.cc, idx-vector.h,
DAEFunc.h, DAERTFunc.h, ODEFunc.h, ODESFunc.h, eigs-base.cc, oct-fftw.cc,
oct-fftw.h, oct-rand.h, oct-spparms.h, schur.cc, sparse-chol.cc,
sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, child-list.h, dir-ops.cc,
dir-ops.h, file-ops.cc, lo-sysdep.cc, oct-env.h, oct-time.cc, cmd-edit.cc,
cmd-edit.h, cmd-hist.h, lo-regexp.cc, lo-regexp.h, lo-utils.cc, oct-shlib.cc,
oct-shlib.h, oct-sort.cc, oct-sort.h, quit.cc, singleton-cleanup.h, str-vec.cc:
Use C++11 nullptr rather than 0 in code (bug #51565).
author | Rik <rik@octave.org> |
---|---|
date | Tue, 25 Jul 2017 14:54:10 -0700 |
parents | 0cc2011d800e |
children | 0519eaf0cca6 |
rev | line source |
---|---|
5610 | 1 /* |
2 | |
23219
3ac9f9ecfae5
maint: Update copyright dates.
John W. Eaton <jwe@octave.org>
parents:
23083
diff
changeset
|
3 Copyright (C) 2005-2017 David Bateman |
11523 | 4 Copyright (C) 1998-2005 Andy Adler |
7016 | 5 |
6 This file is part of Octave. | |
5610 | 7 |
8 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
|
9 under the terms of the GNU General Public License as published by |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
10 the Free Software Foundation; either version 3 of the License, or |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
11 (at your option) any later version. |
5610 | 12 |
22755
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
13 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
|
14 WITHOUT ANY WARRANTY; without even the implied warranty of |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
3a2b891d0b33
maint: Standardize Copyright formatting.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
16 GNU General Public License for more details. |
5610 | 17 |
18 You should have received a copy of the GNU General Public License | |
7016 | 19 along with Octave; see the file COPYING. If not, see |
20 <http://www.gnu.org/licenses/>. | |
5610 | 21 |
22 */ | |
23 | |
21724
aba2e6293dd8
use "#if ..." consistently instead of "#ifdef" and "#ifndef"
John W. Eaton <jwe@octave.org>
parents:
21691
diff
changeset
|
24 #if defined (HAVE_CONFIG_H) |
21301
40de9f8f23a6
Use '#include "config.h"' rather than <config.h>.
Rik <rik@octave.org>
parents:
21229
diff
changeset
|
25 # include "config.h" |
5610 | 26 #endif |
27 | |
23024
a6a7b054e4ba
Rationalize #includes in libinterp/dldfcn directory.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
28 #include "CSparse.h" |
a6a7b054e4ba
Rationalize #includes in libinterp/dldfcn directory.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
29 #include "dRowVector.h" |
a6a7b054e4ba
Rationalize #includes in libinterp/dldfcn directory.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
30 #include "dSparse.h" |
a6a7b054e4ba
Rationalize #includes in libinterp/dldfcn directory.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
31 #include "oct-sparse.h" |
a6a7b054e4ba
Rationalize #includes in libinterp/dldfcn directory.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
32 |
5610 | 33 #include "defun-dld.h" |
21100
e39e05d90788
Switch gripe_XXX to either err_XXX or warn_XXX naming scheme.
Rik <rik@octave.org>
parents:
20940
diff
changeset
|
34 #include "errwarn.h" |
23024
a6a7b054e4ba
Rationalize #includes in libinterp/dldfcn directory.
Rik <rik@octave.org>
parents:
22755
diff
changeset
|
35 #include "ov.h" |
20940
48b2ad5ee801
maint: Rename oct-obj.[cc|h] to ovl.[cc|h] for clarity.
Rik <rik@octave.org>
parents:
20939
diff
changeset
|
36 #include "ovl.h" |
5610 | 37 #include "utils.h" |
38 | |
21229
a83e7a384ee0
create and install a subset of config.h in octave-config.h
John W. Eaton <jwe@octave.org>
parents:
21211
diff
changeset
|
39 #if defined (OCTAVE_ENABLE_64) |
21200
fcac5dbbf9ed
maint: Indent #ifdef blocks in libinterp.
Rik <rik@octave.org>
parents:
21176
diff
changeset
|
40 # define CXSPARSE_NAME(name) cs_dl ## name |
5610 | 41 #else |
21200
fcac5dbbf9ed
maint: Indent #ifdef blocks in libinterp.
Rik <rik@octave.org>
parents:
21176
diff
changeset
|
42 # define CXSPARSE_NAME(name) cs_di ## name |
5610 | 43 #endif |
44 | |
21691
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
45 #if defined (HAVE_CXSPARSE) |
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
46 |
5610 | 47 static RowVector |
23391
209e749363a2
safe cast between SuiteSparse_long and octave_idx_type pointers (bug #50510)
John W. Eaton <jwe@octave.org>
parents:
23220
diff
changeset
|
48 put_int (octave::suitesparse_integer *p, octave_idx_type n) |
5610 | 49 { |
50 RowVector ret (n); | |
51 for (octave_idx_type i = 0; i < n; i++) | |
14854
5ae9f0f77635
maint: Use Octave coding conventions for coddling parenthis is DLD-FUNCTIONS directory
Rik <octave@nomad.inbox5.com>
parents:
14846
diff
changeset
|
52 ret.xelem (i) = p[i] + 1; |
5610 | 53 return ret; |
54 } | |
55 | |
6066 | 56 static octave_value_list |
57 dmperm_internal (bool rank, const octave_value arg, int nargout) | |
5610 | 58 { |
59 octave_value_list retval; | |
60 octave_idx_type nr = arg.rows (); | |
61 octave_idx_type nc = arg.columns (); | |
62 SparseMatrix m; | |
63 SparseComplexMatrix cm; | |
5648 | 64 CXSPARSE_NAME () csm; |
5610 | 65 csm.m = nr; |
66 csm.n = nc; | |
23795
980f39c3ab90
Use C++11 nullptr rather than 0 in code (bug #51565).
Rik <rik@octave.org>
parents:
23582
diff
changeset
|
67 csm.x = nullptr; |
5610 | 68 csm.nz = -1; |
69 | |
23582
0cc2011d800e
maint: Deprecate is_real_type and replace with isreal.
Rik <rik@octave.org>
parents:
23391
diff
changeset
|
70 if (arg.isreal ()) |
5610 | 71 { |
72 m = arg.sparse_matrix_value (); | |
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14501
diff
changeset
|
73 csm.nzmax = m.nnz (); |
23391
209e749363a2
safe cast between SuiteSparse_long and octave_idx_type pointers (bug #50510)
John W. Eaton <jwe@octave.org>
parents:
23220
diff
changeset
|
74 csm.p = octave::to_suitesparse_intptr (m.xcidx ()); |
209e749363a2
safe cast between SuiteSparse_long and octave_idx_type pointers (bug #50510)
John W. Eaton <jwe@octave.org>
parents:
23220
diff
changeset
|
75 csm.i = octave::to_suitesparse_intptr (m.xridx ()); |
5610 | 76 } |
77 else | |
78 { | |
79 cm = arg.sparse_complex_matrix_value (); | |
14846
460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents:
14501
diff
changeset
|
80 csm.nzmax = cm.nnz (); |
23391
209e749363a2
safe cast between SuiteSparse_long and octave_idx_type pointers (bug #50510)
John W. Eaton <jwe@octave.org>
parents:
23220
diff
changeset
|
81 csm.p = octave::to_suitesparse_intptr (cm.xcidx ()); |
209e749363a2
safe cast between SuiteSparse_long and octave_idx_type pointers (bug #50510)
John W. Eaton <jwe@octave.org>
parents:
23220
diff
changeset
|
82 csm.i = octave::to_suitesparse_intptr (cm.xridx ()); |
5610 | 83 } |
84 | |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
85 if (nargout <= 1 || rank) |
5610 | 86 { |
23391
209e749363a2
safe cast between SuiteSparse_long and octave_idx_type pointers (bug #50510)
John W. Eaton <jwe@octave.org>
parents:
23220
diff
changeset
|
87 octave::suitesparse_integer *jmatch = CXSPARSE_NAME (_maxtrans) (&csm, 0); |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
88 if (rank) |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
89 { |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
90 octave_idx_type r = 0; |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
91 for (octave_idx_type i = 0; i < nc; i++) |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
92 if (jmatch[nr+i] >= 0) |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
93 r++; |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
94 retval(0) = static_cast<double>(r); |
10154
40dfc0c99116
DLD-FUNCTIONS/*.cc: untabify
John W. Eaton <jwe@octave.org>
parents:
9064
diff
changeset
|
95 } |
5610 | 96 else |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
97 retval(0) = put_int (jmatch + nr, nc); |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
98 CXSPARSE_NAME (_free) (jmatch); |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
99 } |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
100 else |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
101 { |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
102 CXSPARSE_NAME (d) *dm = CXSPARSE_NAME(_dmperm) (&csm, 0); |
6066 | 103 |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
104 //retval(5) = put_int (dm->rr, 5); |
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
105 //retval(4) = put_int (dm->cc, 5); |
20860
61892a245653
2015 Code Sprint: dmperm.cc: use ovl().
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
106 retval = ovl (put_int (dm->p, nr), put_int (dm->q, nc), |
61892a245653
2015 Code Sprint: dmperm.cc: use ovl().
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
107 put_int (dm->r, dm->nb+1), put_int (dm->s, dm->nb+1)); |
21152
8ad3907b8fad
require CXSparse 2.2 or later
John W. Eaton <jwe@octave.org>
parents:
21140
diff
changeset
|
108 |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
109 CXSPARSE_NAME (_dfree) (dm); |
5610 | 110 } |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20163
diff
changeset
|
111 |
6066 | 112 return retval; |
113 } | |
21691
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
114 |
6066 | 115 #endif |
116 | |
117 DEFUN_DLD (dmperm, args, nargout, | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
118 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
|
119 @deftypefn {} {@var{p} =} dmperm (@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
|
120 @deftypefnx {} {[@var{p}, @var{q}, @var{r}, @var{S}] =} dmperm (@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
|
121 |
22023
b602ce0b5acf
doc: Fix building Texinfo docs on old systems (bug #48172).
Rik <rik@octave.org>
parents:
21966
diff
changeset
|
122 @cindex Dulmage-Mendelsohn decomposition |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
123 Perform a @nospell{Dulmage-Mendelsohn} permutation of the sparse matrix |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
124 @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
|
125 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
126 With a single output argument @code{dmperm} performs the row permutations |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
127 @var{p} such that @code{@var{S}(@var{p},:)} has no zero elements on the |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
128 diagonal. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
129 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
130 Called with two or more output arguments, returns the row and column |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
131 permutations, such that @code{@var{S}(@var{p}, @var{q})} is in block |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
132 triangular form. The values of @var{r} and @var{S} define the boundaries |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
133 of the blocks. If @var{S} is square then @code{@var{r} == @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
|
134 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
135 The method used is described in: @nospell{A. Pothen & C.-J. Fan.} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
136 @cite{Computing the Block Triangular Form of a Sparse Matrix}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
137 ACM Trans. Math. Software, 16(4):303-324, 1990. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
138 @seealso{colamd, ccolamd} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
139 @end deftypefn */) |
6066 | 140 { |
21211
2cf8bc5c7017
use "#if defined (HAVE_FOO)" instead of "#if HAVE_FOO" for feature tests
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
141 #if defined (HAVE_CXSPARSE) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
142 |
20818
cef0448a6ed2
eliminate unnecessary uses of nargin
John W. Eaton <jwe@octave.org>
parents:
20812
diff
changeset
|
143 if (args.length () != 1) |
20790
c2d9556d51d0
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20555
diff
changeset
|
144 print_usage (); |
6066 | 145 |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20860
diff
changeset
|
146 return ovl (dmperm_internal (false, args(0), nargout)); |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20860
diff
changeset
|
147 |
5610 | 148 #else |
21691
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
149 |
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
150 octave_unused_parameter (args); |
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
151 octave_unused_parameter (nargout); |
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
152 |
21109
bd1752782e56
Use err_disabled_feature, warn_disabled_feature throughout code base.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
153 err_disabled_feature ("dmperm", "CXSparse"); |
21691
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
154 |
5610 | 155 #endif |
156 } | |
157 | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
158 /* |
7243 | 159 %!testif HAVE_CXSPARSE |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
160 %! n = 20; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
161 %! a = speye (n,n); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
162 %! a = a(randperm (n),:); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
163 %! assert (a(dmperm (a),:), speye (n)); |
5610 | 164 |
7243 | 165 %!testif HAVE_CXSPARSE |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
166 %! n = 20; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
167 %! d = 0.2; |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
168 %! a = tril (sprandn (n,n,d), -1) + speye (n,n); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
169 %! a = a(randperm (n), randperm (n)); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
170 %! [p,q,r,s] = dmperm (a); |
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
171 %! assert (tril (a(p,q), -1), sparse (n, n)); |
5610 | 172 */ |
173 | |
6066 | 174 DEFUN_DLD (sprank, args, nargout, |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
175 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
|
176 @deftypefn {} {@var{p} =} sprank (@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
|
177 @cindex structural rank |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
178 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
179 Calculate the structural rank of the sparse matrix @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
|
180 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
181 Note that only the structure of the matrix is used in this calculation based |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
182 on a @nospell{Dulmage-Mendelsohn} permutation to block triangular form. As |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
183 such the numerical rank of the matrix @var{S} is bounded by |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
184 @code{sprank (@var{S}) >= rank (@var{S})}. Ignoring floating point errors |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
185 @code{sprank (@var{S}) == rank (@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
|
186 @seealso{dmperm} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
187 @end deftypefn */) |
6066 | 188 { |
21211
2cf8bc5c7017
use "#if defined (HAVE_FOO)" instead of "#if HAVE_FOO" for feature tests
John W. Eaton <jwe@octave.org>
parents:
21200
diff
changeset
|
189 #if defined (HAVE_CXSPARSE) |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
190 |
20818
cef0448a6ed2
eliminate unnecessary uses of nargin
John W. Eaton <jwe@octave.org>
parents:
20812
diff
changeset
|
191 if (args.length () != 1) |
20790
c2d9556d51d0
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20555
diff
changeset
|
192 print_usage (); |
6066 | 193 |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20860
diff
changeset
|
194 return ovl (dmperm_internal (true, args(0), nargout)); |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20860
diff
changeset
|
195 |
6066 | 196 #else |
21691
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
197 |
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
198 octave_unused_parameter (args); |
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
199 octave_unused_parameter (nargout); |
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
200 |
21109
bd1752782e56
Use err_disabled_feature, warn_disabled_feature throughout code base.
Rik <rik@octave.org>
parents:
21100
diff
changeset
|
201 err_disabled_feature ("sprank", "CXSparse"); |
21691
263d18409fdf
Eliminate unused variable warnings for conditionally compiled code.
John W. Eaton <jwe@octave.org>
parents:
21580
diff
changeset
|
202 |
6066 | 203 #endif |
204 } | |
205 | |
11586
12df7854fa7c
strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents:
11553
diff
changeset
|
206 /* |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
207 %!testif HAVE_CXSPARSE |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21301
diff
changeset
|
208 %! assert (sprank (speye (20)), 20); |
7243 | 209 %!testif HAVE_CXSPARSE |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21301
diff
changeset
|
210 %! assert (sprank ([1,0,2,0;2,0,4,0]), 2); |
6066 | 211 |
14501
60e5cf354d80
Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions.
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
212 %!error sprank (1,2) |
6066 | 213 */ |