modulo.h 2.0 KB

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  1. //===----------------------------------------------------------------------===//
  2. //
  3. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. // See https://llvm.org/LICENSE.txt for license information.
  5. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. //
  7. //===----------------------------------------------------------------------===//
  8. #ifndef _LIBCPP___MATH_MODULO_H
  9. #define _LIBCPP___MATH_MODULO_H
  10. #include <__config>
  11. #include <__type_traits/enable_if.h>
  12. #include <__type_traits/is_arithmetic.h>
  13. #include <__type_traits/is_same.h>
  14. #include <__type_traits/promote.h>
  15. #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  16. # pragma GCC system_header
  17. #endif
  18. _LIBCPP_BEGIN_NAMESPACE_STD
  19. namespace __math {
  20. // fmod
  21. inline _LIBCPP_HIDE_FROM_ABI float fmod(float __x, float __y) _NOEXCEPT { return __builtin_fmodf(__x, __y); }
  22. template <class = int>
  23. _LIBCPP_HIDE_FROM_ABI double fmod(double __x, double __y) _NOEXCEPT {
  24. return __builtin_fmod(__x, __y);
  25. }
  26. inline _LIBCPP_HIDE_FROM_ABI long double fmod(long double __x, long double __y) _NOEXCEPT {
  27. return __builtin_fmodl(__x, __y);
  28. }
  29. template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0>
  30. inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type fmod(_A1 __x, _A2 __y) _NOEXCEPT {
  31. using __result_type = typename __promote<_A1, _A2>::type;
  32. static_assert((!(_IsSame<_A1, __result_type>::value && _IsSame<_A2, __result_type>::value)), "");
  33. return __math::fmod((__result_type)__x, (__result_type)__y);
  34. }
  35. // modf
  36. inline _LIBCPP_HIDE_FROM_ABI float modf(float __x, float* __y) _NOEXCEPT { return __builtin_modff(__x, __y); }
  37. template <class = int>
  38. _LIBCPP_HIDE_FROM_ABI double modf(double __x, double* __y) _NOEXCEPT {
  39. return __builtin_modf(__x, __y);
  40. }
  41. inline _LIBCPP_HIDE_FROM_ABI long double modf(long double __x, long double* __y) _NOEXCEPT {
  42. return __builtin_modfl(__x, __y);
  43. }
  44. } // namespace __math
  45. _LIBCPP_END_NAMESPACE_STD
  46. #endif // _LIBCPP___MATH_MODULO_H