cerrno 1.4 KB

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  1. // -*- C++ -*-
  2. //===----------------------------------------------------------------------===//
  3. //
  4. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  5. // See https://llvm.org/LICENSE.txt for license information.
  6. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  7. //
  8. //===----------------------------------------------------------------------===//
  9. #ifndef _LIBCPP_CERRNO
  10. #define _LIBCPP_CERRNO
  11. /*
  12. cerrno synopsis
  13. Macros:
  14. EDOM
  15. EILSEQ // C99
  16. ERANGE
  17. errno
  18. */
  19. #include <__config>
  20. #include <errno.h>
  21. #ifndef _LIBCPP_ERRNO_H
  22. # error <cerrno> tried including <errno.h> but didn't find libc++'s <errno.h> header. \
  23. This usually means that your header search paths are not configured properly. \
  24. The header search paths should contain the C++ Standard Library headers before \
  25. any C Standard Library, and you are probably using compiler flags that make that \
  26. not be the case.
  27. #endif
  28. #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  29. # pragma GCC system_header
  30. #endif
  31. // LWG3869 Deprecate std::errc constants related to UNIX STREAMS
  32. //
  33. // This LWG issue deprecates the POSIX macros ENODATA, ENOSR, ENOSTR, and ETIME. These were
  34. // deprecated in libc++ in https://github.com/llvm/llvm-project/pull/80542.
  35. // Based on the post commit feedback the macro are no longer deprecated.
  36. // Instead libc++ leaves the deprecation to the provider of errno.h.
  37. #endif // _LIBCPP_CERRNO