customization.hpp

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/* Copyright 2025 Kevin Exton
 *
 * 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.
 */
 
#pragma once
#ifndef IO_CUSTOMIZATION_HPP
#define IO_CUSTOMIZATION_HPP
 
#include <utility>
 
namespace io::detail {
template <typename Tag> struct cpo {
  template <typename... Args>
  auto operator()(Args &&...args) const
      -> decltype(tag_invoke(Tag{}, std::forward<Args>(args)...)) {
    return tag_invoke(Tag{}, std::forward<Args>(args)...);
  }
};
} // namespace io::detail
 
#endif // IO_CUSTOMIZATION_HPP