chromium/third_party/libc++/src/include/__charconv/traits.h

// -*- 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 _LIBCPP___CHARCONV_TRAITS
#define _LIBCPP___CHARCONV_TRAITS

#include <__assert>
#include <__bit/countl.h>
#include <__charconv/tables.h>
#include <__charconv/to_chars_base_10.h>
#include <__config>
#include <__type_traits/enable_if.h>
#include <__type_traits/is_unsigned.h>
#include <cstdint>
#include <limits>

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

_LIBCPP_PUSH_MACROS
#include <__undef_macros>

_LIBCPP_BEGIN_NAMESPACE_STD

#if _LIBCPP_STD_VER >= 17

namespace __itoa {

template <typename _Tp, typename = void>
struct _LIBCPP_HIDDEN __traits_base;

__traits_base<_Tp, __enable_if_t<sizeof(_Tp) <= sizeof(uint32_t)>>;

__traits_base<_Tp, __enable_if_t<sizeof(_Tp) == sizeof(uint64_t)>>;

#  ifndef _LIBCPP_HAS_NO_INT128
__traits_base<_Tp, __enable_if_t<sizeof(_Tp) == sizeof(__uint128_t)>>;
#  endif

template <typename _Tp>
inline _LIBCPP_CONSTEXPR_SINCE_CXX23 _LIBCPP_HIDE_FROM_ABI bool
__mul_overflowed(unsigned char __a, _Tp __b, unsigned char& __r) { … }

template <typename _Tp>
inline _LIBCPP_CONSTEXPR_SINCE_CXX23 _LIBCPP_HIDE_FROM_ABI bool
__mul_overflowed(unsigned short __a, _Tp __b, unsigned short& __r) { … }

template <typename _Tp>
inline _LIBCPP_CONSTEXPR_SINCE_CXX23 _LIBCPP_HIDE_FROM_ABI bool __mul_overflowed(_Tp __a, _Tp __b, _Tp& __r) { … }

template <typename _Tp, typename _Up>
inline _LIBCPP_HIDE_FROM_ABI bool _LIBCPP_CONSTEXPR_SINCE_CXX23 __mul_overflowed(_Tp __a, _Up __b, _Tp& __r) { … }

template <typename _Tp>
struct _LIBCPP_HIDDEN __traits : __traits_base<_Tp> { … };

} // namespace __itoa

template <typename _Tp>
inline _LIBCPP_CONSTEXPR_SINCE_CXX23 _LIBCPP_HIDE_FROM_ABI _Tp __complement(_Tp __x) { … }

#endif // _LIBCPP_STD_VER >= 17

_LIBCPP_END_NAMESPACE_STD

_LIBCPP_POP_MACROS

#endif // _LIBCPP___CHARCONV_TRAITS