chromium/third_party/libc++/src/include/__math/rounding_functions.h

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP___MATH_ROUNDING_FUNCTIONS_H
#define _LIBCPP___MATH_ROUNDING_FUNCTIONS_H

#include <__config>
#include <__type_traits/enable_if.h>
#include <__type_traits/is_arithmetic.h>
#include <__type_traits/is_integral.h>
#include <__type_traits/is_same.h>
#include <__type_traits/promote.h>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

namespace __math {

// ceil

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float ceil(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI double ceil(double __x) _NOEXCEPT { … }

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double ceil(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI double ceil(_A1 __x) _NOEXCEPT { … }

// floor

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float floor(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI double floor(double __x) _NOEXCEPT { … }

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double floor(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI double floor(_A1 __x) _NOEXCEPT { … }

// llrint

inline _LIBCPP_HIDE_FROM_ABI long long llrint(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_HIDE_FROM_ABI long long llrint(double __x) _NOEXCEPT { … }

inline _LIBCPP_HIDE_FROM_ABI long long llrint(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
inline _LIBCPP_HIDE_FROM_ABI long long llrint(_A1 __x) _NOEXCEPT { … }

// llround

inline _LIBCPP_HIDE_FROM_ABI long long llround(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_HIDE_FROM_ABI long long llround(double __x) _NOEXCEPT { … }

inline _LIBCPP_HIDE_FROM_ABI long long llround(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
inline _LIBCPP_HIDE_FROM_ABI long long llround(_A1 __x) _NOEXCEPT { … }

// lrint

inline _LIBCPP_HIDE_FROM_ABI long lrint(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_HIDE_FROM_ABI long lrint(double __x) _NOEXCEPT { … }

inline _LIBCPP_HIDE_FROM_ABI long lrint(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
inline _LIBCPP_HIDE_FROM_ABI long lrint(_A1 __x) _NOEXCEPT { … }

// lround

inline _LIBCPP_HIDE_FROM_ABI long lround(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_HIDE_FROM_ABI long lround(double __x) _NOEXCEPT { … }

inline _LIBCPP_HIDE_FROM_ABI long lround(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
inline _LIBCPP_HIDE_FROM_ABI long lround(_A1 __x) _NOEXCEPT { … }

// nearbyint

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float nearbyint(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI double nearbyint(double __x) _NOEXCEPT { … }

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double nearbyint(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI double nearbyint(_A1 __x) _NOEXCEPT { … }

// nextafter

inline _LIBCPP_HIDE_FROM_ABI float nextafter(float __x, float __y) _NOEXCEPT { … }

template <class = int>
_LIBCPP_HIDE_FROM_ABI double nextafter(double __x, double __y) _NOEXCEPT { … }

inline _LIBCPP_HIDE_FROM_ABI long double nextafter(long double __x, long double __y) _NOEXCEPT { … }

template <class _A1, class _A2, __enable_if_t<is_arithmetic<_A1>::value && is_arithmetic<_A2>::value, int> = 0>
inline _LIBCPP_HIDE_FROM_ABI typename __promote<_A1, _A2>::type nextafter(_A1 __x, _A2 __y) _NOEXCEPT { … }

// nexttoward

inline _LIBCPP_HIDE_FROM_ABI float nexttoward(float __x, long double __y) _NOEXCEPT { … }

template <class = int>
_LIBCPP_HIDE_FROM_ABI double nexttoward(double __x, long double __y) _NOEXCEPT { … }

inline _LIBCPP_HIDE_FROM_ABI long double nexttoward(long double __x, long double __y) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
inline _LIBCPP_HIDE_FROM_ABI double nexttoward(_A1 __x, long double __y) _NOEXCEPT { … }

// rint

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float rint(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI double rint(double __x) _NOEXCEPT { … }

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double rint(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI double rint(_A1 __x) _NOEXCEPT { … }

// round

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float round(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI double round(double __x) _NOEXCEPT { … }

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double round(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI double round(_A1 __x) _NOEXCEPT { … }

// trunc

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI float trunc(float __x) _NOEXCEPT { … }

template <class = int>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI double trunc(double __x) _NOEXCEPT { … }

_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI long double trunc(long double __x) _NOEXCEPT { … }

template <class _A1, __enable_if_t<is_integral<_A1>::value, int> = 0>
_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI double trunc(_A1 __x) _NOEXCEPT { … }

} // namespace __math

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP___MATH_ROUNDING_FUNCTIONS_H