llvm/libc/src/__support/FPUtil/ManipulationFunctions.h

//===-- Floating-point manipulation functions -------------------*- 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
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIBC_SRC___SUPPORT_FPUTIL_MANIPULATIONFUNCTIONS_H
#define LLVM_LIBC_SRC___SUPPORT_FPUTIL_MANIPULATIONFUNCTIONS_H

#include "FPBits.h"
#include "NearestIntegerOperations.h"
#include "NormalFloat.h"
#include "cast.h"
#include "dyadic_float.h"
#include "rounding_mode.h"

#include "hdr/math_macros.h"
#include "src/__support/CPP/bit.h"
#include "src/__support/CPP/limits.h" // INT_MAX, INT_MIN
#include "src/__support/CPP/type_traits.h"
#include "src/__support/FPUtil/FEnvImpl.h"
#include "src/__support/macros/attributes.h"
#include "src/__support/macros/config.h"
#include "src/__support/macros/optimization.h" // LIBC_UNLIKELY

namespace LIBC_NAMESPACE_DECL {
namespace fputil {

template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
LIBC_INLINE T frexp(T x, int &exp) { … }

template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
LIBC_INLINE T modf(T x, T &iptr) { … }

template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
LIBC_INLINE T copysign(T x, T y) { … }

template <typename T> struct IntLogbConstants;

template <> struct IntLogbConstants<int> { … };

template <> struct IntLogbConstants<long> { … };

template <typename T, typename U>
LIBC_INLINE constexpr cpp::enable_if_t<cpp::is_floating_point_v<U>, T>
intlogb(U x) { … }

template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
LIBC_INLINE constexpr T logb(T x) { … }

template <typename T, typename U>
LIBC_INLINE constexpr cpp::enable_if_t<
    cpp::is_floating_point_v<T> && cpp::is_integral_v<U>, T>
ldexp(T x, U exp) { … }

template <typename T, typename U,
          cpp::enable_if_t<cpp::is_floating_point_v<T> &&
                               cpp::is_floating_point_v<U> &&
                               (sizeof(T) <= sizeof(U)),
                           int> = 0>
LIBC_INLINE T nextafter(T from, U to) { … }

template <bool IsDown, typename T,
          cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
LIBC_INLINE constexpr T nextupdown(T x) { … }

} // namespace fputil
} // namespace LIBC_NAMESPACE_DECL

#ifdef LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
#include "x86_64/NextAfterLongDouble.h"
#include "x86_64/NextUpDownLongDouble.h"
#endif // LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80

#endif // LLVM_LIBC_SRC___SUPPORT_FPUTIL_MANIPULATIONFUNCTIONS_H