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// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
// Copyright 2008-2016 National ICT Australia (NICTA)
//
// 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
//
// 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.
// ------------------------------------------------------------------------
//! \addtogroup arma_rel_comparators
//! @{
template<typename eT>
struct arma_lt_comparator
{
arma_inline bool operator() (const eT a, const eT b) const { return (a < b); }
};
template<typename eT>
struct arma_gt_comparator
{
arma_inline bool operator() (const eT a, const eT b) const { return (a > b); }
};
template<typename eT>
struct arma_leq_comparator
{
arma_inline bool operator() (const eT a, const eT b) const { return (a <= b); }
};
template<typename eT>
struct arma_geq_comparator
{
arma_inline bool operator() (const eT a, const eT b) const { return (a >= b); }
};
template<typename T>
struct arma_lt_comparator< std::complex<T> >
{
typedef typename std::complex<T> eT;
inline bool operator() (const eT& a, const eT& b) const { return (std::abs(a) < std::abs(b)); }
// inline
// bool
// operator() (const eT& a, const eT& b) const
// {
// const T abs_a = std::abs(a);
// const T abs_b = std::abs(b);
//
// return ( (abs_a != abs_b) ? (abs_a < abs_b) : (std::arg(a) < std::arg(b)) );
// }
};
template<typename T>
struct arma_gt_comparator< std::complex<T> >
{
typedef typename std::complex<T> eT;
inline bool operator() (const eT& a, const eT& b) const { return (std::abs(a) > std::abs(b)); }
// inline
// bool
// operator() (const eT& a, const eT& b) const
// {
// const T abs_a = std::abs(a);
// const T abs_b = std::abs(b);
//
// return ( (abs_a != abs_b) ? (abs_a > abs_b) : (std::arg(a) > std::arg(b)) );
// }
};
template<typename T>
struct arma_leq_comparator< std::complex<T> >
{
typedef typename std::complex<T> eT;
inline bool operator() (const eT& a, const eT& b) const { return (std::abs(a) <= std::abs(b)); }
};
template<typename T>
struct arma_geq_comparator< std::complex<T> >
{
typedef typename std::complex<T> eT;
inline bool operator() (const eT& a, const eT& b) const { return (std::abs(a) >= std::abs(b)); }
};
//! @}
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