1 // SPDX-License-Identifier: Apache-2.0 2 // 3 // Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au) 4 // Copyright 2008-2016 National ICT Australia (NICTA) 5 // 6 // Licensed under the Apache License, Version 2.0 (the "License"); 7 // you may not use this file except in compliance with the License. 8 // You may obtain a copy of the License at 9 // http://www.apache.org/licenses/LICENSE-2.0 10 // 11 // Unless required by applicable law or agreed to in writing, software 12 // distributed under the License is distributed on an "AS IS" BASIS, 13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 // See the License for the specific language governing permissions and 15 // limitations under the License. 16 // ------------------------------------------------------------------------ 17 18 19 namespace newarp 20 { 21 22 23 //! Tiny functions to check attributes of complex numbers 24 struct cx_attrib 25 { 26 template<typename T> is_realnewarp::cx_attrib27 arma_inline static bool is_real (const std::complex<T>& v, const T eps) { return (std::abs(v.imag()) <= eps); } 28 29 template<typename T> is_complexnewarp::cx_attrib30 arma_inline static bool is_complex(const std::complex<T>& v, const T eps) { return (std::abs(v.imag()) > eps); } 31 32 template<typename T> is_conjnewarp::cx_attrib33 arma_inline static bool is_conj(const std::complex<T>& v1, const std::complex<T>& v2, const T eps) { return (std::abs(v1 - std::conj(v2)) <= eps); } 34 }; 35 36 37 } // namespace newarp 38