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