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|
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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
// SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCUDACXX___CMATH_LOGARITHMS_H
#define _LIBCUDACXX___CMATH_LOGARITHMS_H
#include <cuda/std/detail/__config>
#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
# pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
# pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
# pragma system_header
#endif // no system header
#include <cuda/std/__floating_point/fp.h>
#include <cuda/std/__type_traits/enable_if.h>
#include <cuda/std/__type_traits/is_integral.h>
#include <cuda/std/cstdint>
#include <nv/target>
#if !_CCCL_COMPILER(NVRTC)
# include <math.h>
#endif // !_CCCL_COMPILER(NVRTC)
#include <cuda/std/__cccl/prologue.h>
_LIBCUDACXX_BEGIN_NAMESPACE_STD
// log
#if _CCCL_CHECK_BUILTIN(builtin_log) || _CCCL_COMPILER(GCC)
# define _CCCL_BUILTIN_LOGF(...) __builtin_logf(__VA_ARGS__)
# define _CCCL_BUILTIN_LOG(...) __builtin_log(__VA_ARGS__)
# define _CCCL_BUILTIN_LOGL(...) __builtin_logl(__VA_ARGS__)
#endif // _CCCL_CHECK_BUILTIN(builtin_log)
// clang-cuda fails with fatal error: error in backend: Undefined external symbol "logf"
#if _CCCL_CUDA_COMPILER(CLANG)
# undef _CCCL_BUILTIN_LOGF
# undef _CCCL_BUILTIN_LOG
# undef _CCCL_BUILTIN_LOGL
#endif // _CCCL_CUDA_COMPILER(CLANG)
[[nodiscard]] _CCCL_API inline float log(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOGF)
return _CCCL_BUILTIN_LOGF(__x);
#else // ^^^ _CCCL_BUILTIN_LOGF ^^^ / vvv !_CCCL_BUILTIN_LOGF vvv
return ::logf(__x);
#endif // !_CCCL_BUILTIN_LOGF
}
[[nodiscard]] _CCCL_API inline float logf(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOGF)
return _CCCL_BUILTIN_LOGF(__x);
#else // ^^^ _CCCL_BUILTIN_LOGF ^^^ / vvv !_CCCL_BUILTIN_LOGF vvv
return ::logf(__x);
#endif // !_CCCL_BUILTIN_LOGF
}
[[nodiscard]] _CCCL_API inline double log(double __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG)
return _CCCL_BUILTIN_LOG(__x);
#else // ^^^ _CCCL_BUILTIN_LOG ^^^ / vvv !_CCCL_BUILTIN_LOG vvv
return ::log(__x);
#endif // !_CCCL_BUILTIN_LOG
}
#if _CCCL_HAS_LONG_DOUBLE()
[[nodiscard]] _CCCL_API inline long double log(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOGL)
return _CCCL_BUILTIN_LOGL(__x);
# else // ^^^ _CCCL_BUILTIN_LOGL ^^^ / vvv !_CCCL_BUILTIN_LOGL vvv
return ::logl(__x);
# endif // !_CCCL_BUILTIN_LOGL
}
[[nodiscard]] _CCCL_API inline long double logl(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOGL)
return _CCCL_BUILTIN_LOGL(__x);
# else // ^^^ _CCCL_BUILTIN_LOGL ^^^ / vvv !_CCCL_BUILTIN_LOGL vvv
return ::logl(__x);
# endif // !_CCCL_BUILTIN_LOGL
}
#endif // _CCCL_HAS_LONG_DOUBLE()
#if _LIBCUDACXX_HAS_NVFP16()
[[nodiscard]] _CCCL_API inline __half log(__half __x) noexcept
{
NV_IF_ELSE_TARGET(NV_PROVIDES_SM_53, (return ::hlog(__x);), ({
float __vf = __half2float(__x);
__vf = _CUDA_VSTD::logf(__vf);
__half_raw __ret_repr = ::__float2half_rn(__vf);
_CUDA_VSTD::uint16_t __repr = _CUDA_VSTD::__fp_get_storage(__x);
switch (__repr)
{
case 7544:
__ret_repr.x -= 1;
break;
default:;
}
return __ret_repr;
}))
}
#endif // _LIBCUDACXX_HAS_NVFP16()
#if _LIBCUDACXX_HAS_NVBF16()
[[nodiscard]] _CCCL_API inline __nv_bfloat16 log(__nv_bfloat16 __x) noexcept
{
NV_IF_ELSE_TARGET(
NV_IS_DEVICE, (return ::hlog(__x);), (return __float2bfloat16(_CUDA_VSTD::logf(__bfloat162float(__x)));))
}
#endif // _LIBCUDACXX_HAS_NVBF16()
template <class _Integer, enable_if_t<_CCCL_TRAIT(is_integral, _Integer), int> = 0>
[[nodiscard]] _CCCL_API inline double log(_Integer __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG)
return _CCCL_BUILTIN_LOG((double) __x);
#else // ^^^ _CCCL_BUILTIN_LOG ^^^ / vvv !_CCCL_BUILTIN_LOG vvv
return ::log((double) __x);
#endif // !_CCCL_BUILTIN_LOG
}
// log10
#if _CCCL_CHECK_BUILTIN(builtin_log10) || _CCCL_COMPILER(GCC)
# define _CCCL_BUILTIN_LOG10F(...) __builtin_log10f(__VA_ARGS__)
# define _CCCL_BUILTIN_LOG10(...) __builtin_log10(__VA_ARGS__)
# define _CCCL_BUILTIN_LOG10L(...) __builtin_log10l(__VA_ARGS__)
#endif // _CCCL_CHECK_BUILTIN(builtin_log10)
// clang-cuda fails with fatal error: error in backend: Undefined external symbol "log10f"
#if _CCCL_CUDA_COMPILER(CLANG)
# undef _CCCL_BUILTIN_LOG10F
# undef _CCCL_BUILTIN_LOG10
# undef _CCCL_BUILTIN_LOG10L
#endif // _CCCL_CUDA_COMPILER(CLANG)
[[nodiscard]] _CCCL_API inline float log10(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG10F)
return _CCCL_BUILTIN_LOG10F(__x);
#else // ^^^ _CCCL_BUILTIN_LOG10F ^^^ / vvv !_CCCL_BUILTIN_LOG10F vvv
return ::log10f(__x);
#endif // !_CCCL_BUILTIN_LOG10F
}
[[nodiscard]] _CCCL_API inline float log10f(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG10F)
return _CCCL_BUILTIN_LOG10F(__x);
#else // ^^^ _CCCL_BUILTIN_LOG10F ^^^ / vvv !_CCCL_BUILTIN_LOG10F vvv
return ::log10f(__x);
#endif // !_CCCL_BUILTIN_LOG10F
}
[[nodiscard]] _CCCL_API inline double log10(double __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG10)
return _CCCL_BUILTIN_LOG10(__x);
#else // ^^^ _CCCL_BUILTIN_LOG10 ^^^ / vvv !_CCCL_BUILTIN_LOG10 vvv
return ::log10(__x);
#endif // !_CCCL_BUILTIN_LOG10
}
#if _CCCL_HAS_LONG_DOUBLE()
[[nodiscard]] _CCCL_API inline long double log10(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOG10L)
return _CCCL_BUILTIN_LOG10L(__x);
# else // ^^^ _CCCL_BUILTIN_LOG10L ^^^ / vvv !_CCCL_BUILTIN_LOG10L vvv
return ::log10l(__x);
# endif // !_CCCL_BUILTIN_LOG10L
}
[[nodiscard]] _CCCL_API inline long double log10l(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOG10L)
return _CCCL_BUILTIN_LOG10L(__x);
# else // ^^^ _CCCL_BUILTIN_LOG10L ^^^ / vvv !_CCCL_BUILTIN_LOG10L vvv
return ::log10l(__x);
# endif // !_CCCL_BUILTIN_LOG10L
}
#endif // _CCCL_HAS_LONG_DOUBLE()
#if _LIBCUDACXX_HAS_NVFP16()
[[nodiscard]] _CCCL_API inline __half log10(__half __x) noexcept
{
NV_IF_ELSE_TARGET(
NV_PROVIDES_SM_53, (return ::hlog10(__x);), (return __float2half(_CUDA_VSTD::log10f(__half2float(__x)));))
}
#endif // _LIBCUDACXX_HAS_NVFP16()
#if _LIBCUDACXX_HAS_NVBF16()
[[nodiscard]] _CCCL_API inline __nv_bfloat16 log10(__nv_bfloat16 __x) noexcept
{
NV_IF_ELSE_TARGET(
NV_IS_DEVICE, (return ::hlog10(__x);), (return __float2bfloat16(_CUDA_VSTD::log10f(__bfloat162float(__x)));))
}
#endif // _LIBCUDACXX_HAS_NVBF16()
template <class _Integer, enable_if_t<_CCCL_TRAIT(is_integral, _Integer), int> = 0>
[[nodiscard]] _CCCL_API inline double log10(_Integer __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG10)
return _CCCL_BUILTIN_LOG10((double) __x);
#else // ^^^ _CCCL_BUILTIN_LOG10 ^^^ / vvv !_CCCL_BUILTIN_LOG10 vvv
return ::log10((double) __x);
#endif // !_CCCL_BUILTIN_LOG10
}
// ilogb
#if _CCCL_CHECK_BUILTIN(builtin_ilogb) || _CCCL_COMPILER(GCC)
# define _CCCL_BUILTIN_ILOGBF(...) __builtin_ilogbf(__VA_ARGS__)
# define _CCCL_BUILTIN_ILOGB(...) __builtin_ilogb(__VA_ARGS__)
# define _CCCL_BUILTIN_ILOGBL(...) __builtin_ilogbl(__VA_ARGS__)
#endif // _CCCL_CHECK_BUILTIN(builtin_log10)
// Below 11.7 nvcc treats the builtin as a host only function
// clang-cuda fails with fatal error: error in backend: Undefined external symbol "ilogb"
#if _CCCL_CUDA_COMPILER(CLANG)
# undef _CCCL_BUILTIN_ILOGBF
# undef _CCCL_BUILTIN_ILOGB
# undef _CCCL_BUILTIN_ILOGBL
#endif // _CCCL_CUDA_COMPILER(CLANG)
[[nodiscard]] _CCCL_API inline int ilogb(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_ILOGBF)
return _CCCL_BUILTIN_ILOGBF(__x);
#else // ^^^ _CCCL_BUILTIN_ILOGBF ^^^ / vvv !_CCCL_BUILTIN_ILOGBF vvv
return ::ilogbf(__x);
#endif // !_CCCL_BUILTIN_ILOGBF
}
[[nodiscard]] _CCCL_API inline int ilogbf(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_ILOGBF)
return _CCCL_BUILTIN_ILOGBF(__x);
#else // ^^^ _CCCL_BUILTIN_ILOGBF ^^^ / vvv !_CCCL_BUILTIN_ILOGBF vvv
return ::ilogbf(__x);
#endif // !_CCCL_BUILTIN_ILOGBF
}
[[nodiscard]] _CCCL_API inline int ilogb(double __x) noexcept
{
#if defined(_CCCL_BUILTIN_ILOGB)
return _CCCL_BUILTIN_ILOGB(__x);
#else // ^^^ _CCCL_BUILTIN_ILOGB ^^^ / vvv !_CCCL_BUILTIN_ILOGB vvv
return ::ilogb(__x);
#endif // !_CCCL_BUILTIN_ILOGB
}
#if _CCCL_HAS_LONG_DOUBLE()
[[nodiscard]] _CCCL_API inline int ilogb(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_ILOGBL)
return _CCCL_BUILTIN_ILOGBL(__x);
# else // ^^^ _CCCL_BUILTIN_ILOGBL ^^^ / vvv !_CCCL_BUILTIN_ILOGBL vvv
return ::ilogbl(__x);
# endif // !_CCCL_BUILTIN_ILOGBL
}
[[nodiscard]] _CCCL_API inline int ilogbl(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_ILOGBL)
return _CCCL_BUILTIN_ILOGBL(__x);
# else // ^^^ _CCCL_BUILTIN_ILOGBL ^^^ / vvv !_CCCL_BUILTIN_ILOGBL vvv
return ::ilogbl(__x);
# endif // !_CCCL_BUILTIN_ILOGBL
}
#endif // _CCCL_HAS_LONG_DOUBLE()
#if _LIBCUDACXX_HAS_NVFP16()
[[nodiscard]] _CCCL_API inline int ilogb(__half __x) noexcept
{
return _CUDA_VSTD::ilogbf(__half2float(__x));
}
#endif // _LIBCUDACXX_HAS_NVFP16()
#if _LIBCUDACXX_HAS_NVBF16()
[[nodiscard]] _CCCL_API inline int ilogb(__nv_bfloat16 __x) noexcept
{
return _CUDA_VSTD::ilogbf(__bfloat162float(__x));
}
#endif // _LIBCUDACXX_HAS_NVBF16()
template <class _Integer, enable_if_t<_CCCL_TRAIT(is_integral, _Integer), int> = 0>
[[nodiscard]] _CCCL_API inline int ilogb(_Integer __x) noexcept
{
#if defined(_CCCL_BUILTIN_ILOGB)
return _CCCL_BUILTIN_ILOGB((double) __x);
#else // ^^^ _CCCL_BUILTIN_ILOGB ^^^ / vvv !_CCCL_BUILTIN_ILOGB vvv
return ::ilogb((double) __x);
#endif // !_CCCL_BUILTIN_ILOGB
}
// log1p
#if _CCCL_CHECK_BUILTIN(builtin_log1p) || _CCCL_COMPILER(GCC)
# define _CCCL_BUILTIN_LOG1PF(...) __builtin_log1pf(__VA_ARGS__)
# define _CCCL_BUILTIN_LOG1P(...) __builtin_log1p(__VA_ARGS__)
# define _CCCL_BUILTIN_LOG1PL(...) __builtin_log1pl(__VA_ARGS__)
#endif // _CCCL_CHECK_BUILTIN(builtin_log1p)
// clang-cuda fails with fatal error: error in backend: Undefined external symbol "log1p"
#if _CCCL_CUDA_COMPILER(CLANG)
# undef _CCCL_BUILTIN_LOG1PF
# undef _CCCL_BUILTIN_LOG1P
# undef _CCCL_BUILTIN_LOG1PL
#endif // _CCCL_CUDA_COMPILER(CLANG)
[[nodiscard]] _CCCL_API inline float log1p(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG1PF)
return _CCCL_BUILTIN_LOG1PF(__x);
#else // ^^^ _CCCL_BUILTIN_LOG1PF ^^^ / vvv !_CCCL_BUILTIN_LOG1PF vvv
return ::log1pf(__x);
#endif // !_CCCL_BUILTIN_LOG1PF
}
[[nodiscard]] _CCCL_API inline float log1pf(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG1PF)
return _CCCL_BUILTIN_LOG1PF(__x);
#else // ^^^ _CCCL_BUILTIN_LOG1PF ^^^ / vvv !_CCCL_BUILTIN_LOG1PF vvv
return ::log1pf(__x);
#endif // !_CCCL_BUILTIN_LOG1PF
}
[[nodiscard]] _CCCL_API inline double log1p(double __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG1P)
return _CCCL_BUILTIN_LOG1P(__x);
#else // ^^^ _CCCL_BUILTIN_LOG1P ^^^ / vvv !_CCCL_BUILTIN_LOG1P vvv
return ::log1p(__x);
#endif // !_CCCL_BUILTIN_LOG1P
}
#if _CCCL_HAS_LONG_DOUBLE()
[[nodiscard]] _CCCL_API inline long double log1p(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOG1PL)
return _CCCL_BUILTIN_LOG1PL(__x);
# else // ^^^ _CCCL_BUILTIN_LOG1PL ^^^ / vvv !_CCCL_BUILTIN_LOG1PL vvv
return ::log1pl(__x);
# endif // !_CCCL_BUILTIN_LOG1PL
}
[[nodiscard]] _CCCL_API inline long double log1pl(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOG1PL)
return _CCCL_BUILTIN_LOG1PL(__x);
# else // ^^^ _CCCL_BUILTIN_LOG1PL ^^^ / vvv !_CCCL_BUILTIN_LOG1PL vvv
return ::log1pl(__x);
# endif // !_CCCL_BUILTIN_LOG1PL
}
#endif // _CCCL_HAS_LONG_DOUBLE()
#if _LIBCUDACXX_HAS_NVFP16()
[[nodiscard]] _CCCL_API inline __half log1p(__half __x) noexcept
{
return __float2half(_CUDA_VSTD::log1pf(__half2float(__x)));
}
#endif // _LIBCUDACXX_HAS_NVFP16()
#if _LIBCUDACXX_HAS_NVBF16()
[[nodiscard]] _CCCL_API inline __nv_bfloat16 log1p(__nv_bfloat16 __x) noexcept
{
return __float2bfloat16(_CUDA_VSTD::log1pf(__bfloat162float(__x)));
}
#endif // _LIBCUDACXX_HAS_NVBF16()
template <class _Integer, enable_if_t<_CCCL_TRAIT(is_integral, _Integer), int> = 0>
[[nodiscard]] _CCCL_API inline double log1p(_Integer __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG1P)
return _CCCL_BUILTIN_LOG1P((double) __x);
#else // ^^^ _CCCL_BUILTIN_LOG1P ^^^ / vvv !_CCCL_BUILTIN_LOG1P vvv
return ::log1p((double) __x);
#endif // !_CCCL_BUILTIN_LOG1P
}
// log2
#if _CCCL_CHECK_BUILTIN(builtin_log2) || _CCCL_COMPILER(GCC)
# define _CCCL_BUILTIN_LOG2F(...) __builtin_log2f(__VA_ARGS__)
# define _CCCL_BUILTIN_LOG2(...) __builtin_log2(__VA_ARGS__)
# define _CCCL_BUILTIN_LOG2L(...) __builtin_log2l(__VA_ARGS__)
#endif // _CCCL_CHECK_BUILTIN(builtin_log1)
// clang-cuda fails with fatal error: error in backend: Undefined external symbol "log2f"
#if _CCCL_CUDA_COMPILER(CLANG)
# undef _CCCL_BUILTIN_LOG2F
# undef _CCCL_BUILTIN_LOG2
# undef _CCCL_BUILTIN_LOG2L
#endif // _CCCL_CUDA_COMPILER(CLANG)
[[nodiscard]] _CCCL_API inline float log2(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG2F)
return _CCCL_BUILTIN_LOG2F(__x);
#else // ^^^ _CCCL_BUILTIN_LOG2F ^^^ / vvv !_CCCL_BUILTIN_LOG2F vvv
return ::log2f(__x);
#endif // !_CCCL_BUILTIN_LOG2F
}
[[nodiscard]] _CCCL_API inline float log2f(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG2F)
return _CCCL_BUILTIN_LOG2F(__x);
#else // ^^^ _CCCL_BUILTIN_LOG2F ^^^ / vvv !_CCCL_BUILTIN_LOG2F vvv
return ::log2f(__x);
#endif // !_CCCL_BUILTIN_LOG2F
}
[[nodiscard]] _CCCL_API inline double log2(double __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG2)
return _CCCL_BUILTIN_LOG2(__x);
#else // ^^^ _CCCL_BUILTIN_LOG2 ^^^ / vvv !_CCCL_BUILTIN_LOG2 vvv
return ::log2(__x);
#endif // !_CCCL_BUILTIN_LOG2
}
#if _CCCL_HAS_LONG_DOUBLE()
[[nodiscard]] _CCCL_API inline long double log2(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOG2L)
return _CCCL_BUILTIN_LOG2L(__x);
# else // ^^^ _CCCL_BUILTIN_LOG2L ^^^ / vvv !_CCCL_BUILTIN_LOG2L vvv
return ::log2l(__x);
# endif // !_CCCL_BUILTIN_LOG2L
}
[[nodiscard]] _CCCL_API inline long double log2l(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOG2L)
return _CCCL_BUILTIN_LOG2L(__x);
# else // ^^^ _CCCL_BUILTIN_LOG2L ^^^ / vvv !_CCCL_BUILTIN_LOG2L vvv
return ::log2l(__x);
# endif // !_CCCL_BUILTIN_LOG2L
}
#endif // _CCCL_HAS_LONG_DOUBLE()
#if _LIBCUDACXX_HAS_NVFP16()
[[nodiscard]] _CCCL_API inline __half log2(__half __x) noexcept
{
NV_IF_ELSE_TARGET(
NV_PROVIDES_SM_53, (return ::hlog2(__x);), (return __float2half(_CUDA_VSTD::log2f(__half2float(__x)));))
}
#endif // _LIBCUDACXX_HAS_NVFP16()
#if _LIBCUDACXX_HAS_NVBF16()
[[nodiscard]] _CCCL_API inline __nv_bfloat16 log2(__nv_bfloat16 __x) noexcept
{
NV_IF_ELSE_TARGET(
NV_IS_DEVICE, (return ::hlog2(__x);), (return __float2bfloat16(_CUDA_VSTD::log2f(__bfloat162float(__x)));))
}
#endif // _LIBCUDACXX_HAS_NVBF16()
template <class _Integer, enable_if_t<_CCCL_TRAIT(is_integral, _Integer), int> = 0>
[[nodiscard]] _CCCL_API inline double log2(_Integer __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOG2)
return _CCCL_BUILTIN_LOG2((double) __x);
#else // ^^^ _CCCL_BUILTIN_LOG2 ^^^ / vvv !_CCCL_BUILTIN_LOG2 vvv
return ::log2((double) __x);
#endif // !_CCCL_BUILTIN_LOG2
}
// logb
#if _CCCL_CHECK_BUILTIN(builtin_logb) || _CCCL_COMPILER(GCC)
# define _CCCL_BUILTIN_LOGBF(...) __builtin_logbf(__VA_ARGS__)
# define _CCCL_BUILTIN_LOGB(...) __builtin_logb(__VA_ARGS__)
# define _CCCL_BUILTIN_LOGBL(...) __builtin_logbl(__VA_ARGS__)
#endif // _CCCL_CHECK_BUILTIN(builtin_log1)
// clang-cuda fails with fatal error: error in backend: Undefined external symbol "logb"
#if _CCCL_CUDA_COMPILER(CLANG)
# undef _CCCL_BUILTIN_LOGBF
# undef _CCCL_BUILTIN_LOGB
# undef _CCCL_BUILTIN_LOGBL
#endif // _CCCL_CUDA_COMPILER(CLANG)
[[nodiscard]] _CCCL_API inline float logb(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOGBF)
return _CCCL_BUILTIN_LOGBF(__x);
#else // ^^^ _CCCL_BUILTIN_LOGBF ^^^ / vvv !_CCCL_BUILTIN_LOGBF vvv
return ::logbf(__x);
#endif // !_CCCL_BUILTIN_LOGBF
}
[[nodiscard]] _CCCL_API inline float logbf(float __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOGBF)
return _CCCL_BUILTIN_LOGBF(__x);
#else // ^^^ _CCCL_BUILTIN_LOGBF ^^^ / vvv !_CCCL_BUILTIN_LOGBF vvv
return ::logbf(__x);
#endif // !_CCCL_BUILTIN_LOGBF
}
[[nodiscard]] _CCCL_API inline double logb(double __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOGB)
return _CCCL_BUILTIN_LOGB(__x);
#else // ^^^ _CCCL_BUILTIN_LOGB ^^^ / vvv !_CCCL_BUILTIN_LOGB vvv
return ::logb(__x);
#endif // !_CCCL_BUILTIN_LOGB
}
#if _CCCL_HAS_LONG_DOUBLE()
[[nodiscard]] _CCCL_API inline long double logb(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOGBL)
return _CCCL_BUILTIN_LOGBL(__x);
# else // ^^^ _CCCL_BUILTIN_LOGBL ^^^ / vvv !_CCCL_BUILTIN_LOGBL vvv
return ::logbl(__x);
# endif // !_CCCL_BUILTIN_LOGBL
}
[[nodiscard]] _CCCL_API inline long double logbl(long double __x) noexcept
{
# if defined(_CCCL_BUILTIN_LOGBL)
return _CCCL_BUILTIN_LOGBL(__x);
# else // ^^^ _CCCL_BUILTIN_LOGBL ^^^ / vvv !_CCCL_BUILTIN_LOGBL vvv
return ::logbl(__x);
# endif // !_CCCL_BUILTIN_LOGBL
}
#endif // _CCCL_HAS_LONG_DOUBLE()
#if _LIBCUDACXX_HAS_NVFP16()
[[nodiscard]] _CCCL_API inline __half logb(__half __x) noexcept
{
return __float2half(_CUDA_VSTD::logbf(__half2float(__x)));
}
#endif // _LIBCUDACXX_HAS_NVFP16()
#if _LIBCUDACXX_HAS_NVBF16()
[[nodiscard]] _CCCL_API inline __nv_bfloat16 logb(__nv_bfloat16 __x) noexcept
{
return __float2bfloat16(_CUDA_VSTD::logbf(__bfloat162float(__x)));
}
#endif // _LIBCUDACXX_HAS_NVBF16()
template <class _Integer, enable_if_t<_CCCL_TRAIT(is_integral, _Integer), int> = 0>
[[nodiscard]] _CCCL_API inline double logb(_Integer __x) noexcept
{
#if defined(_CCCL_BUILTIN_LOGB)
return _CCCL_BUILTIN_LOGB((double) __x);
#else // ^^^ _CCCL_BUILTIN_LOGB ^^^ / vvv !_CCCL_BUILTIN_LOGB vvv
return ::logb((double) __x);
#endif // !_CCCL_BUILTIN_LOGB
}
_LIBCUDACXX_END_NAMESPACE_STD
#include <cuda/std/__cccl/epilogue.h>
#endif // _LIBCUDACXX___CMATH_LOGARITHMS_H
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