1 //===----------------------------------------------------------------------===// 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(__LLVM_LIBC__) 25 // No _LIBCPP_ELAST needed for LLVM libc 26 #elif defined(_NEWLIB_VERSION) 27 # define _LIBCPP_ELAST __ELASTERROR 28 #elif defined(__NuttX__) 29 // No _LIBCPP_ELAST needed on NuttX 30 #elif defined(__Fuchsia__) 31 // No _LIBCPP_ELAST needed on Fuchsia 32 #elif defined(__wasi__) 33 // No _LIBCPP_ELAST needed on WASI 34 #elif defined(__EMSCRIPTEN__) 35 // No _LIBCPP_ELAST needed on Emscripten 36 #elif defined(__linux__) || _LIBCPP_HAS_MUSL_LIBC 37 # define _LIBCPP_ELAST 4095 38 #elif defined(__APPLE__) 39 // No _LIBCPP_ELAST needed on Apple 40 #elif defined(__MVS__) 41 # define _LIBCPP_ELAST 1160 42 #elif defined(_LIBCPP_MSVCRT_LIKE) 43 # define _LIBCPP_ELAST (_sys_nerr - 1) 44 #elif defined(_AIX) 45 # define _LIBCPP_ELAST 127 46 #else 47 // Warn here so that the person doing the libcxx port has an easier time: 48 # warning ELAST for this platform not yet implemented 49 #endif 50 51 #endif // _LIBCPP_CONFIG_ELAST 52