Mercurial > octave
view libinterp/operators/op-pm-sm.cc @ 23084:ef4d915df748
maint: Merge stable to default.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 23 Jan 2017 14:27:48 -0500 |
parents | 3a2b891d0b33 e9a0469dedd9 |
children | 092078913d54 |
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/* Copyright (C) 2009-2016 Jason Riedy This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include "errwarn.h" #include "ovl.h" #include "ov.h" #include "ov-typeinfo.h" #include "ops.h" #include "ov-perm.h" #include "ov-re-sparse.h" // permutation matrix by sparse matrix ops DEFBINOP (mul_pm_sm, perm_matrix, sparse_matrix) { const octave_perm_matrix& v1 = dynamic_cast<const octave_perm_matrix&> (a1); const octave_sparse_matrix& v2 = dynamic_cast<const octave_sparse_matrix&> (a2); if (v2.rows () == 1 && v2.columns () == 1) { double d = v2.scalar_value (); return octave_value (v1.sparse_matrix_value () * d); } else if (v1.rows () == 1 && v1.columns () == 1) return octave_value (v2.sparse_matrix_value ()); else return v1.perm_matrix_value () * v2.sparse_matrix_value (); } DEFBINOP (ldiv_pm_sm, perm_matrix, sparse_matrix) { const octave_perm_matrix& v1 = dynamic_cast<const octave_perm_matrix&> (a1); const octave_sparse_matrix& v2 = dynamic_cast<const octave_sparse_matrix&> (a2); return v1.perm_matrix_value ().inverse () * v2.sparse_matrix_value (); } // sparse matrix by diagonal matrix ops DEFBINOP (mul_sm_pm, sparse_matrix, perm_matrix) { const octave_sparse_matrix& v1 = dynamic_cast<const octave_sparse_matrix&> (a1); const octave_perm_matrix& v2 = dynamic_cast<const octave_perm_matrix&> (a2); if (v1.rows () == 1 && v1.columns () == 1) { double d = v1.scalar_value (); return octave_value (d * v2.sparse_matrix_value ()); } else if (v2.rows () == 1 && v2.columns () == 1) return octave_value (v1.sparse_matrix_value ()); else return v1.sparse_matrix_value () * v2.perm_matrix_value (); } DEFBINOP (div_sm_pm, sparse_matrix, perm_matrix) { const octave_sparse_matrix& v1 = dynamic_cast<const octave_sparse_matrix&> (a1); const octave_perm_matrix& v2 = dynamic_cast<const octave_perm_matrix&> (a2); return v1.sparse_matrix_value () * v2.perm_matrix_value ().inverse (); } void install_pm_sm_ops (void) { INSTALL_BINOP (op_mul, octave_perm_matrix, octave_sparse_matrix, mul_pm_sm); INSTALL_BINOP (op_ldiv, octave_perm_matrix, octave_sparse_matrix, ldiv_pm_sm); INSTALL_BINOP (op_mul, octave_sparse_matrix, octave_perm_matrix, mul_sm_pm); INSTALL_BINOP (op_div, octave_sparse_matrix, octave_perm_matrix, div_sm_pm); }