diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/llvm/Config/config.h.cmake | 7 | ||||
-rw-r--r-- | include/llvm/System/Errno.h | 34 |
2 files changed, 39 insertions, 2 deletions
diff --git a/include/llvm/Config/config.h.cmake b/include/llvm/Config/config.h.cmake index 27ef440223..180e8c5238 100644 --- a/include/llvm/Config/config.h.cmake +++ b/include/llvm/Config/config.h.cmake @@ -364,10 +364,13 @@ #undef HAVE_STRDUP /* Define to 1 if you have the `strerror' function. */ -#undef HAVE_STRERROR +#cmakedefine HAVE_STRERROR /* Define to 1 if you have the `strerror_r' function. */ -#undef HAVE_STRERROR_R +#cmakedefine HAVE_STRERROR_R + +/* Define to 1 if you have the `strerror_s' function. */ +#cmakedefine HAVE_STRERROR_S /* Define to 1 if you have the <strings.h> header file. */ #undef HAVE_STRINGS_H diff --git a/include/llvm/System/Errno.h b/include/llvm/System/Errno.h new file mode 100644 index 0000000000..6e292ba626 --- /dev/null +++ b/include/llvm/System/Errno.h @@ -0,0 +1,34 @@ +//===- llvm/System/Errno.h - Portable+convenient errno handling -*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file declares some portable and convenient functions to deal with errno. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_SYSTEM_ERRNO_H +#define LLVM_SYSTEM_ERRNO_H + +#include <string> + +namespace llvm { +namespace sys { + +/// Returns a string representation of the errno value, using whatever +/// thread-safe variant of strerror() is available. Be sure to call this +/// immediately after the function that set errno, or errno may have been +/// overwritten by an intervening call. +std::string StrError(); + +/// Like the no-argument version above, but uses \p errnum instead of errno. +std::string StrError(int errnum); + +} // namespace sys +} // namespace llvm + +#endif // LLVM_SYSTEM_ERRNO_H |