expression.hpp

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//          Copyright RedPortal, mujjingun 2017 - 2018.
// Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE or copy at
//          http://www.boost.org/LICENSE_1_0.txt)

#ifndef _MGCPP_EXPRESSIONS_EXPRESSION_HPP_
#define _MGCPP_EXPRESSIONS_EXPRESSION_HPP_

#include <cstddef>
#include <mgcpp/expressions/forward.hpp>

namespace mgcpp {

size_t make_id();

template <typename Type>
class expression {
 public:
  inline Type& operator~() noexcept;
  inline Type const& operator~() const noexcept;

 protected:
  size_t id = make_id();
};

}  // namespace mgcpp

#include <mgcpp/expressions/expression.tpp>
#endif