2157aecfe4
Macros starting with alphabetic characters such as "LLVM" are in the application name space and cannot be defined or used by a conforming implementation's headers. This fixes the headers that are entirely generated, and the __llvm-libc-common.h header to use a conforming macro name for the header guard. That is, it starts with "_LLVM_LIBC_" instead of "LLVM_LIBC_", as identifiers starting with an underscore followed by a capital letter are in the name space reserved for the implementation. The remaining headers either will be fixed implicitly by removal of their custom template files, or will need to be fixed by hand.
91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
//===-- Common definitions for LLVM-libc public header files --------------===//
|
|
//
|
|
// 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_COMMON_H
|
|
#define _LLVM_LIBC_COMMON_H
|
|
|
|
#define __LLVM_LIBC__ 1
|
|
|
|
#ifdef __cplusplus
|
|
|
|
#undef __BEGIN_C_DECLS
|
|
#define __BEGIN_C_DECLS extern "C" {
|
|
|
|
#undef __END_C_DECLS
|
|
#define __END_C_DECLS }
|
|
|
|
// Standard C++ doesn't have C99 restrict but GNU C++ has it with __ spelling.
|
|
#undef __restrict
|
|
#ifndef __GNUC__
|
|
#define __restrict
|
|
#endif
|
|
|
|
#undef _Noreturn
|
|
#define _Noreturn [[noreturn]]
|
|
|
|
#undef _Alignas
|
|
#define _Alignas alignas
|
|
|
|
#undef _Static_assert
|
|
#define _Static_assert static_assert
|
|
|
|
#undef _Alignof
|
|
#define _Alignof alignof
|
|
|
|
#undef _Thread_local
|
|
#define _Thread_local thread_local
|
|
|
|
#undef __NOEXCEPT
|
|
#if __cplusplus >= 201103L
|
|
#define __NOEXCEPT noexcept
|
|
#else
|
|
#define __NOEXCEPT throw()
|
|
#endif
|
|
|
|
#else // not __cplusplus
|
|
|
|
#undef __BEGIN_C_DECLS
|
|
#define __BEGIN_C_DECLS
|
|
|
|
#undef __END_C_DECLS
|
|
#define __END_C_DECLS
|
|
|
|
#undef __restrict
|
|
#if __STDC_VERSION__ >= 199901L
|
|
// C99 and above support the restrict keyword.
|
|
#define __restrict restrict
|
|
#elif !defined(__GNUC__)
|
|
// GNU-compatible compilers accept the __ spelling in all modes.
|
|
// Otherwise, omit the qualifier for pure C89 compatibility.
|
|
#define __restrict
|
|
#endif
|
|
|
|
#undef _Noreturn
|
|
#if __STDC_VERSION__ >= 201112L
|
|
// In C11 and later, _Noreturn is a keyword.
|
|
#elif defined(__GNUC__)
|
|
// GNU-compatible compilers have an equivalent attribute.
|
|
#define _Noreturn __attribute__((__noreturn__))
|
|
#else
|
|
#define _Noreturn
|
|
#endif
|
|
|
|
#undef __NOEXCEPT
|
|
#ifdef __GNUC__
|
|
#define __NOEXCEPT __attribute__((__nothrow__))
|
|
#else
|
|
#define __NOEXCEPT
|
|
#endif
|
|
|
|
#undef _Returns_twice
|
|
#define _Returns_twice __attribute__((returns_twice))
|
|
|
|
#endif // __cplusplus
|
|
|
|
#endif // _LLVM_LIBC_COMMON_H
|