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/*
* Copyright (c) 2011, Michael Lehn * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1) Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2) Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3) Neither the name of the FLENS development group nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* Based on * SUBROUTINE DGELS( TRANS, M, N, NRHS, A, LDA, B, LDB, WORK, LWORK, INFO ) SUBROUTINE ZGELS( TRANS, M, N, NRHS, A, LDA, B, LDB, WORK, LWORK, INFO ) * * -- LAPACK driver routine (version 3.3.1) -- * -- LAPACK is a software package provided by Univ. of Tennessee, -- * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- * -- April 2011 -- */ #ifndef FLENS_LAPACK_GE_LS_H #define FLENS_LAPACK_GE_LS_H 1 #include <flens/matrixtypes/matrixtypes.h> #include <flens/vectortypes/vectortypes.h> namespace flens { namespace lapack { //== (ge)ls ==================================================================== // // Real variant // template <typename MA, typename MB, typename VWORK> typename RestrictTo<IsRealGeMatrix<MA>::value && IsRealGeMatrix<MB>::value && IsRealDenseVector<VWORK>::value, typename RemoveRef<MA>::Type::IndexType>::Type ls(Transpose trans, MA &&A, MB &&B, VWORK &&work); #ifdef USE_CXXLAPACK // // Complex variant // template <typename MA, typename MB, typename VWORK> typename RestrictTo<IsComplexGeMatrix<MA>::value && IsComplexGeMatrix<MB>::value && IsComplexDenseVector<VWORK>::value, typename RemoveRef<MA>::Type::IndexType>::Type ls(Transpose trans, MA &&A, MB &&B, VWORK &&work); #endif // USE_CXXLAPACK // // Real/complex variant with temporary workspace // template <typename MA, typename MB> typename RestrictTo<IsGeMatrix<MA>::value && IsGeMatrix<MB>::value, typename RemoveRef<MA>::Type::IndexType>::Type ls(Transpose trans, MA &&A, MB &&B); //== (ge)ls variant if rhs is vector =========================================== // // Real and complex // template <typename MA, typename VB, typename VWORK> typename RestrictTo<IsGeMatrix<MA>::value && IsDenseVector<VB>::value && IsDenseVector<VWORK>::value, typename RemoveRef<MA>::Type::IndexType>::Type ls(Transpose trans, MA &&A, VB &&b, VWORK &&work); // // Real/complex variant with temporary workspace // template <typename MA, typename VB> typename RestrictTo<IsGeMatrix<MA>::value && IsDenseVector<VB>::value, typename RemoveRef<MA>::Type::IndexType>::Type ls(Transpose trans, MA &&A, VB &&b); } } // namespace lapack, flens #endif // FLENS_LAPACK_GE_LS_H |