workaround.hpp 1.0 KB

1234567891011121314151617181920212223242526272829303132333435363738
  1. // Copyright (c) 2006-7 John Maddock
  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. #ifndef BOOST_MATH_TOOLS_WORHAROUND_HPP
  6. #define BOOST_MATH_TOOLS_WORHAROUND_HPP
  7. #ifdef _MSC_VER
  8. #pragma once
  9. #endif
  10. #include <boost/math/tools/config.hpp>
  11. namespace boost{ namespace math{ namespace tools{
  12. //
  13. // We call this short forwarding function so that we can work around a bug
  14. // on Darwin that causes std::fmod to return a NaN. The test case is:
  15. // std::fmod(1185.0L, 1.5L);
  16. //
  17. template <class T>
  18. inline T fmod_workaround(T a, T b) BOOST_MATH_NOEXCEPT(T)
  19. {
  20. BOOST_MATH_STD_USING
  21. return fmod(a, b);
  22. }
  23. #if (defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)) && ((LDBL_MANT_DIG == 106) || (__LDBL_MANT_DIG__ == 106))
  24. template <>
  25. inline long double fmod_workaround(long double a, long double b) BOOST_NOEXCEPT
  26. {
  27. return ::fmodl(a, b);
  28. }
  29. #endif
  30. }}} // namespaces
  31. #endif // BOOST_MATH_TOOLS_WORHAROUND_HPP