text: 
  /*!
   * @file
   * @brief Defines `shijimi::math::rational`.
   * @copyright shijimi29431 2021
   * Distributed under the Boost Software License, Version 1.0.
   * (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
   */
  
  #ifndef SHIJIMI_MATH_RATIONAL_HPP
  #define SHIJIMI_MATH_RATIONAL_HPP
  
  #pragma once
  
  #include <type_traits>
  #include <shijimi/math/config.hpp>
  #include <shijimi/math/external/tcb/rational.hpp>
  
  namespace shijimi { namespace math {
  
  /**
   * @brief rational
   */
  template <typename T>
  using rational = tcb::rational<T>;
  
  } // namespace math
  } // namespace shijimi
  
  #endif // SHIJIMI_MATH_RATIONAL_HPP
  