complex.hpp

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// Copyright (c) 2024 Simons Foundation
//
// 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.
//
// Authors: Thomas Hahn, Olivier Parcollet, Nils Wentzell
 
#ifndef LIBH5_COMPLEX_HPP
#define LIBH5_COMPLEX_HPP
 
#include <complex>
#include <type_traits>
 
namespace h5 {
 
  struct dcplx_t {
    double r;
 
    double i;
  };
 
  namespace detail {
 
    // Type trait to check if a type is std::complex.
    template <typename T>
    struct _is_complex : std::false_type {};
 
    // Specialization of h5::_is_complex for std::complex.
    template <typename T>
    struct _is_complex<std::complex<T>> : std::true_type {};
 
  } // namespace detail
 
  template <typename T>
  constexpr bool is_complex_v = detail::_is_complex<T>::value;
 
} // namespace h5
 
#endif // LIBH5_COMPLEX_HPP