Mercurial > octave
view liboctave/numeric/gsvd.h @ 29228:5c14f81e0937
Set API tags in files in liboctave/numeric (patch #8919).
Add API tag to template class definitions. Add API tag to (un-defined) functions
and member functions in headers. Export template class instantiations and
template functions from .cc files.
author | Markus Mützel <markus.muetzel@gmx.de> |
---|---|
date | Tue, 29 Dec 2020 17:51:23 +0100 |
parents | bd51beb6205e |
children | 7854d5752dd2 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1997-2020 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // 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 // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if ! defined (octave_gsvd_h) #define octave_gsvd_h 1 #include "octave-config.h" namespace octave { namespace math { template <typename T> class OCTAVE_API gsvd { public: enum class Type { std, economy, sigma_only }; gsvd (void) : sigmaA (), sigmaB (), left_smA (), left_smB (), right_sm () { } gsvd (const T& a, const T& b, gsvd::Type gsvd_type = gsvd<T>::Type::economy); gsvd (const gsvd& a) : type (a.type), sigmaA (a.sigmaA), sigmaB (a.sigmaB), left_smA (a.left_smA), left_smB (a.left_smB), right_sm (a.right_sm), R(a.R) { } gsvd& operator = (const gsvd& a) { if (this != &a) { type = a.type; sigmaA = a.sigmaA; sigmaB = a.sigmaB; left_smA = a.left_smA; left_smB = a.left_smB; right_sm = a.right_sm; R = a.R; } return *this; } ~gsvd (void) = default; typename T::real_diag_matrix_type singular_values_A (void) const { return sigmaA; } typename T::real_diag_matrix_type singular_values_B (void) const { return sigmaB; } T left_singular_matrix_A (void) const; T left_singular_matrix_B (void) const; T right_singular_matrix (void) const; T R_matrix (void) const; private: typedef typename T::value_type P; typedef typename T::real_matrix_type real_matrix; gsvd::Type type; typename T::real_diag_matrix_type sigmaA, sigmaB; T left_smA, left_smB; T right_sm, R; void ggsvd (char& jobu, char& jobv, char& jobq, octave_f77_int_type m, octave_f77_int_type n, octave_f77_int_type p, octave_f77_int_type& k, octave_f77_int_type& l, P *tmp_dataA, octave_f77_int_type m1, P *tmp_dataB, octave_f77_int_type p1, real_matrix& alpha, real_matrix& beta, P *u, octave_f77_int_type nrow_u, P *v, octave_f77_int_type nrow_v, P *q, octave_f77_int_type nrow_q, T& work, octave_f77_int_type lwork, octave_f77_int_type *iwork, octave_f77_int_type& info); }; } } #endif