ceph/src/boost/libs/math/include/boost/math/tools/real_cast.hpp

   1 //  Copyright John Maddock 2006.
   2 //  Use, modification and distribution are subject to the
   3 //  Boost Software License, Version 1.0. (See accompanying file
   4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifndef BOOST_MATH_TOOLS_REAL_CAST_HPP
   7 #define BOOST_MATH_TOOLS_REAL_CAST_HPP
   8
   9 #include <boost/math/tools/config.hpp>
  10
  11 #ifdef _MSC_VER
  12 #pragma once
  13 #endif
  14
  15 namespace boost{ namespace math
  16 {
  17   namespace tools
  18   {
  19     template <class To, class T>
  20     inline BOOST_MATH_CONSTEXPR To real_cast(T t) BOOST_NOEXCEPT_IF(BOOST_MATH_IS_FLOAT(T) && BOOST_MATH_IS_FLOAT(To))
  21     {
  22        return static_cast<To>(t);
  23     }
  24   } // namespace tools
  25 } // namespace math
  26 } // namespace boost
  27
  28 #endif // BOOST_MATH_TOOLS_REAL_CAST_HPP
  29
  30
  31