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 #if defined(ELAST) 21 #define _LIBCPP_ELAST ELAST 22 #elif defined(_NEWLIB_VERSION) 23 #define _LIBCPP_ELAST __ELASTERROR 24 #elif defined(__Fuchsia__) 25 // No _LIBCPP_ELAST needed on Fuchsia 26 #elif defined(__wasi__) 27 // No _LIBCPP_ELAST needed on WASI 28 #elif defined(__linux__) || defined(_LIBCPP_HAS_MUSL_LIBC) 29 #define _LIBCPP_ELAST 4095 30 #elif defined(__APPLE__) 31 // No _LIBCPP_ELAST needed on Apple 32 #elif defined(__sun__) 33 #define _LIBCPP_ELAST ESTALE 34 #elif defined(_LIBCPP_MSVCRT_LIKE) 35 #define _LIBCPP_ELAST (_sys_nerr - 1) 36 #else 37 // Warn here so that the person doing the libcxx port has an easier time: 38 #warning ELAST for this platform not yet implemented 39 #endif 40 41 #endif // _LIBCPP_CONFIG_ELAST 42