156ab87500
See: * https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319 * https://discourse.llvm.org/t/rfc-project-hand-in-hand-llvm-libc-libc-code-sharing/77701 We're dropping support for C++03 for Zig due to the first change; it would be insane to ship 1018 duplicate header files just for this outdated use case. As a result of the second change, I had to bring in a subset of the headers from llvm-libc since libc++ now depends on these. Hopefully we can continue to get away with not copying the entirety of llvm-libc.
52 lines
1.6 KiB
C
Vendored
52 lines
1.6 KiB
C
Vendored
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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_CONFIG_ELAST
|
|
#define _LIBCPP_CONFIG_ELAST
|
|
|
|
#include <__config>
|
|
|
|
#if defined(_LIBCPP_MSVCRT_LIKE)
|
|
# include <stdlib.h>
|
|
#else
|
|
# include <errno.h>
|
|
#endif
|
|
|
|
// Note: _LIBCPP_ELAST needs to be defined only on platforms
|
|
// where strerror/strerror_r can't handle out-of-range errno values.
|
|
#if defined(ELAST)
|
|
# define _LIBCPP_ELAST ELAST
|
|
#elif defined(__LLVM_LIBC__)
|
|
// No _LIBCPP_ELAST needed for LLVM libc
|
|
#elif defined(_NEWLIB_VERSION)
|
|
# define _LIBCPP_ELAST __ELASTERROR
|
|
#elif defined(__NuttX__)
|
|
// No _LIBCPP_ELAST needed on NuttX
|
|
#elif defined(__Fuchsia__)
|
|
// No _LIBCPP_ELAST needed on Fuchsia
|
|
#elif defined(__wasi__)
|
|
// No _LIBCPP_ELAST needed on WASI
|
|
#elif defined(__EMSCRIPTEN__)
|
|
// No _LIBCPP_ELAST needed on Emscripten
|
|
#elif defined(__linux__) || _LIBCPP_HAS_MUSL_LIBC
|
|
# define _LIBCPP_ELAST 4095
|
|
#elif defined(__APPLE__)
|
|
// No _LIBCPP_ELAST needed on Apple
|
|
#elif defined(__MVS__)
|
|
# define _LIBCPP_ELAST 1160
|
|
#elif defined(_LIBCPP_MSVCRT_LIKE)
|
|
# define _LIBCPP_ELAST (_sys_nerr - 1)
|
|
#elif defined(_AIX)
|
|
# define _LIBCPP_ELAST 127
|
|
#else
|
|
// Warn here so that the person doing the libcxx port has an easier time:
|
|
# warning ELAST for this platform not yet implemented
|
|
#endif
|
|
|
|
#endif // _LIBCPP_CONFIG_ELAST
|