mirror of
https://github.com/ziglang/zig.git
synced 2025-12-06 14:23:09 +00:00
06ee65af9e
release/18.x branch, commit 78b99c73ee4b96fe9ce0e294d4632326afb2db42 This adds the flag `-D_LIBCPP_HARDENING_MODE` which is determined based on the Zig optimization mode. This commit also fixes libunwind, libcxx, and libcxxabi to properly report sub compilation errors.
93 lines
2.5 KiB
C++
Vendored
93 lines
2.5 KiB
C++
Vendored
// -*- 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_BIT
|
|
#define _LIBCPP_BIT
|
|
|
|
/*
|
|
bit synopsis
|
|
|
|
namespace std {
|
|
// [bit.cast], bit_cast
|
|
template<class To, class From>
|
|
constexpr To bit_cast(const From& from) noexcept; // C++20
|
|
|
|
// [bit.byteswap], byteswap
|
|
template<class T>
|
|
constexpr T byteswap(T value) noexcept; // C++23
|
|
|
|
// [bit.pow.two], integral powers of 2
|
|
template <class T>
|
|
constexpr bool has_single_bit(T x) noexcept; // C++20
|
|
template <class T>
|
|
constexpr T bit_ceil(T x); // C++20
|
|
template <class T>
|
|
constexpr T bit_floor(T x) noexcept; // C++20
|
|
template <class T>
|
|
constexpr int bit_width(T x) noexcept; // C++20
|
|
|
|
// [bit.rotate], rotating
|
|
template<class T>
|
|
constexpr T rotl(T x, int s) noexcept; // C++20
|
|
template<class T>
|
|
constexpr T rotr(T x, int s) noexcept; // C++20
|
|
|
|
// [bit.count], counting
|
|
template<class T>
|
|
constexpr int countl_zero(T x) noexcept; // C++20
|
|
template<class T>
|
|
constexpr int countl_one(T x) noexcept; // C++20
|
|
template<class T>
|
|
constexpr int countr_zero(T x) noexcept; // C++20
|
|
template<class T>
|
|
constexpr int countr_one(T x) noexcept; // C++20
|
|
template<class T>
|
|
constexpr int popcount(T x) noexcept; // C++20
|
|
|
|
// [bit.endian], endian
|
|
enum class endian {
|
|
little = see below, // C++20
|
|
big = see below, // C++20
|
|
native = see below // C++20
|
|
};
|
|
|
|
} // namespace std
|
|
|
|
*/
|
|
|
|
#include <__assert> // all public C++ headers provide the assertion handler
|
|
#include <__bit/bit_cast.h>
|
|
#include <__bit/bit_ceil.h>
|
|
#include <__bit/bit_floor.h>
|
|
#include <__bit/bit_log2.h>
|
|
#include <__bit/bit_width.h>
|
|
#include <__bit/blsr.h>
|
|
#include <__bit/byteswap.h>
|
|
#include <__bit/countl.h>
|
|
#include <__bit/countr.h>
|
|
#include <__bit/endian.h>
|
|
#include <__bit/has_single_bit.h>
|
|
#include <__bit/popcount.h>
|
|
#include <__bit/rotate.h>
|
|
#include <__config>
|
|
#include <version>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
# pragma GCC system_header
|
|
#endif
|
|
|
|
#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
|
|
# include <cstdlib>
|
|
# include <iosfwd>
|
|
# include <limits>
|
|
# include <type_traits>
|
|
#endif
|
|
|
|
#endif // _LIBCPP_BIT
|