/*
* Copyright (c) 2012, 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_OPERATORS_OPDIV_H #define FLENS_BLAS_OPERATORS_OPDIV_H 1 #include <flens/auxiliary/isconvertible.h> #include <flens/auxiliary/restrictto.h> #include <flens/matrixtypes/matrixtypes.h> #include <flens/scalartypes/scalartypes.h> #include <flens/vectortypes/vectortypes.h> namespace flens { struct OpDiv {}; // // x/alpha // // The declaration of this function certainly looks complicated. But what // the RestrictTo trait does is ensuring that alpha is a scalar and // - either alpha can be converted to the element type of x // - or the element type of x can beconverted to alpha. // If this is the case the return type is // // const VectorClosure<OpDiv, typename V::Impl, ScalarValue<ALPHA> > // template <typename ALPHA, typename V> const typename RestrictTo< IsConvertible<ALPHA, typename V::Impl::ElementType>::value || IsConvertible<typename V::Impl::ElementType, ALPHA>::value, VectorClosure<OpDiv, typename V::Impl, ScalarValue<ALPHA> > >::Type operator/(const Vector<V> &x, const ALPHA &alpha); // // A/alpha // template <typename ALPHA, typename M> const typename RestrictTo< IsConvertible<ALPHA, typename M::Impl::ElementType>::value || IsConvertible<typename M::Impl::ElementType, ALPHA>::value, MatrixClosure<OpDiv, typename M::Impl, ScalarValue<ALPHA> > >::Type operator/(const Matrix<M> &x, const ALPHA &alpha); } // namespace flens #endif // FLENS_BLAS_OPERATORS_OPDIV_H |