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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkUnaryMinusFunctor_h
#define itkUnaryMinusFunctor_h
namespace itk
{
namespace Functor
{
/**
* \class UnaryMinus
* \brief
* \ingroup ITKImageIntensity
*/
template< class TInput1, class TOutput = TInput1 >
class UnaryMinus
{
public:
UnaryMinus() {}
~UnaryMinus() {}
bool operator!=(const UnaryMinus &) const
{
return false;
}
bool operator==(const UnaryMinus & other) const
{
return !( *this != other );
}
inline TOutput operator()(const TInput1 & A ) const
{ return (TOutput)( -A ); }
};
}
}
#endif // itkUnaryMinusFunctor_h
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