1//===----------------------- config_elast.h -------------------------------===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8 9#ifndef _LIBCPP_CONFIG_ELAST 10#define _LIBCPP_CONFIG_ELAST 11 12#include <__config> 13 14#if defined(_LIBCPP_MSVCRT_LIKE) 15#include <stdlib.h> 16#else 17#include <errno.h> 18#endif 19 20// Note: _LIBCPP_ELAST needs to be defined only on platforms 21// where strerror/strerror_r can't handle out-of-range errno values. 22#if defined(ELAST) 23#define _LIBCPP_ELAST ELAST 24#elif defined(_NEWLIB_VERSION) 25#define _LIBCPP_ELAST __ELASTERROR 26#elif defined(__NuttX__) 27// No _LIBCPP_ELAST needed on NuttX 28#elif defined(__Fuchsia__) 29// No _LIBCPP_ELAST needed on Fuchsia 30#elif defined(__wasi__) 31// No _LIBCPP_ELAST needed on WASI 32#elif defined(__linux__) || defined(_LIBCPP_HAS_MUSL_LIBC) 33#define _LIBCPP_ELAST 4095 34#elif defined(__APPLE__) 35// No _LIBCPP_ELAST needed on Apple 36#elif defined(__sun__) 37#define _LIBCPP_ELAST ESTALE 38#elif defined(__MVS__) 39#define _LIBCPP_ELAST 1160 40#elif defined(_LIBCPP_MSVCRT_LIKE) 41#define _LIBCPP_ELAST (_sys_nerr - 1) 42#elif defined(_AIX) 43#define _LIBCPP_ELAST 127 44#else 45// Warn here so that the person doing the libcxx port has an easier time: 46#warning ELAST for this platform not yet implemented 47#endif 48 49#endif // _LIBCPP_CONFIG_ELAST 50