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/*
* Copyright (c) 2010, 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_SCALAROPERATIONS_MINUS_TCC
#define FLENS_SCALAROPERATIONS_MINUS_TCC 1
#include <flens/scalaroperations/minus.h>
namespace flens {
template <typename L, typename R>
const typename ScalarClosure<ScalarOpMinus, L, R>::ElementType
evalScalarClosure(const ScalarClosure<ScalarOpMinus, L, R> &exp)
{
return exp.left().value() - exp.right().value();
}
template <typename L>
const typename ScalarClosure<ScalarOpUnaryMinus, L, L>::ElementType
evalScalarClosure(const ScalarClosure<ScalarOpUnaryMinus, L, L> &exp)
{
return -exp.left().value();
}
//-- operator overloading
template <typename L, typename R>
const ScalarClosure<ScalarOpMinus,
typename L::Impl,
typename R::Impl>
operator-(const Scalar<L> &l, const Scalar<R> &r)
{
typedef ScalarClosure<ScalarOpMinus, typename L::Impl, typename R::Impl> SC;
return SC(l.impl(), r.impl());
}
template <typename ALPHA, typename R>
const typename
RestrictTo<CompatibleScalar<ALPHA, R>::value,
ScalarClosure<ScalarOpMinus,
ScalarValue<ALPHA>,
typename R::Impl>
>::Type
operator-(const ALPHA &alpha, const Scalar<R> &r)
{
typedef ScalarClosure<ScalarOpMinus,
ScalarValue<ALPHA>,
typename R::Impl> SC;
return SC(alpha, r.impl());
}
template <typename L, typename ALPHA>
const typename
RestrictTo<CompatibleScalar<ALPHA, L>::value,
ScalarClosure<ScalarOpMinus,
typename L::Impl,
ScalarValue<ALPHA> >
>::Type
operator-(const Scalar<L> &l, const ALPHA &alpha)
{
typedef ScalarClosure<ScalarOpMinus,
typename L::Impl,
ScalarValue<ALPHA> > SC;
return SC(l.impl(), alpha);
}
template <typename L>
const ScalarClosure<ScalarOpUnaryMinus,
typename L::Impl,
typename L::Impl>
operator-(const Scalar<L> &l)
{
typedef ScalarClosure<ScalarOpUnaryMinus,
typename L::Impl,
typename L::Impl> SC;
return SC(l.impl(), l.impl());
}
} // namespace flens
#endif // FLENS_SCALAROPERATIONS_MINUS_TCC
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