115 lines
2.7 KiB
C++
115 lines
2.7 KiB
C++
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup arma_rel_comparators
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//! @{
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template<typename eT>
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struct arma_lt_comparator
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{
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arma_inline bool operator() (const eT a, const eT b) const { return (a < b); }
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};
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template<typename eT>
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struct arma_gt_comparator
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{
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arma_inline bool operator() (const eT a, const eT b) const { return (a > b); }
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};
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template<typename eT>
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struct arma_leq_comparator
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{
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arma_inline bool operator() (const eT a, const eT b) const { return (a <= b); }
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};
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template<typename eT>
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struct arma_geq_comparator
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{
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arma_inline bool operator() (const eT a, const eT b) const { return (a >= b); }
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};
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template<typename T>
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struct arma_lt_comparator< std::complex<T> >
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{
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typedef typename std::complex<T> eT;
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inline bool operator() (const eT& a, const eT& b) const { return (std::abs(a) < std::abs(b)); }
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// inline
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// bool
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// operator() (const eT& a, const eT& b) const
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// {
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// const T abs_a = std::abs(a);
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// const T abs_b = std::abs(b);
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//
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// return ( (abs_a != abs_b) ? (abs_a < abs_b) : (std::arg(a) < std::arg(b)) );
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// }
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};
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template<typename T>
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struct arma_gt_comparator< std::complex<T> >
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{
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typedef typename std::complex<T> eT;
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inline bool operator() (const eT& a, const eT& b) const { return (std::abs(a) > std::abs(b)); }
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// inline
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// bool
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// operator() (const eT& a, const eT& b) const
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// {
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// const T abs_a = std::abs(a);
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// const T abs_b = std::abs(b);
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//
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// return ( (abs_a != abs_b) ? (abs_a > abs_b) : (std::arg(a) > std::arg(b)) );
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// }
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};
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template<typename T>
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struct arma_leq_comparator< std::complex<T> >
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{
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typedef typename std::complex<T> eT;
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inline bool operator() (const eT& a, const eT& b) const { return (std::abs(a) <= std::abs(b)); }
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};
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template<typename T>
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struct arma_geq_comparator< std::complex<T> >
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{
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typedef typename std::complex<T> eT;
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inline bool operator() (const eT& a, const eT& b) const { return (std::abs(a) >= std::abs(b)); }
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};
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//! @}
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