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/*
* Copyright (c) 2009, 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.
*/
#ifndef FLENS_BLAS_LEVEL1_SCAL_TCC
#define FLENS_BLAS_LEVEL1_SCAL_TCC 1
#include <flens/auxiliary/auxiliary.h>
#include <flens/blas/closures/closures.h>
#include <flens/blas/level1/level1.h>
#include <flens/typedefs.h>
#include <ulmblas/cxxblas.h>
#ifdef FLENS_DEBUG_CLOSURES
# include <flens/blas/blaslogon.h>
#else
# include <flens/blas/blaslogoff.h>
#endif
namespace flens { namespace blas {
//-- BLAS Level 1 extensions ---------------------------------------------------
//-- scal
template <typename ALPHA, typename VY>
typename RestrictTo<IsDenseVector<VY>::value,
void>::Type
scal(const ALPHA &alpha, VY &&y)
{
FLENS_BLASLOG_SETTAG("--> ");
FLENS_BLASLOG_BEGIN_SCAL(alpha, y);
cxxblas::scal(y.length(), alpha, y.data(), y.stride());
FLENS_BLASLOG_END;
FLENS_BLASLOG_UNSETTAG;
}
//-- gescal
template <typename ALPHA, typename MB>
typename RestrictTo<IsGeMatrix<MB>::value,
void>::Type
scal(const ALPHA &alpha, MB &&B)
{
FLENS_BLASLOG_SETTAG("--> ");
FLENS_BLASLOG_BEGIN_SCAL(alpha, B);
cxxblas::gescal(B.numRows(), B.numCols(),
alpha, B.data(), B.strideRow(), B.strideCol());
FLENS_BLASLOG_END;
FLENS_BLASLOG_UNSETTAG;
}
//-- trscal
template <typename ALPHA, typename MB>
typename RestrictTo<IsTrMatrix<MB>::value,
void>::Type
scal(const ALPHA &alpha, MB &&B)
{
FLENS_BLASLOG_SETTAG("--> ");
FLENS_BLASLOG_BEGIN_SCAL(alpha, B);
const bool lowerB = (B.upLo()==Lower);
const bool unitDiagB = (B.diag()==Unit);
cxxblas::trscal(B.numRows(), B.numCols(),
alpha,
lowerB, unitDiagB, B.data(), B.strideRow(), B.strideCol());
FLENS_BLASLOG_END;
FLENS_BLASLOG_UNSETTAG;
}
} } // namespace blas, flens
#endif // FLENS_BLAS_LEVEL1_SCAL_TCC
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