libc/src/string/strerror_r.cpp

   1 //===-- Implementation of strerror_r --------------------------------------===//
   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 #include "src/string/strerror_r.h"
  10 #include "src/__support/StringUtil/error_to_string.h"
  11 #include "src/__support/common.h"
  12 #include "src/__support/macros/config.h"
  13
  14 #include <stddef.h>
  15
  16 namespace LIBC_NAMESPACE_DECL {
  17
  18 // This is the gnu version of strerror_r. The XSI version may be added later.
  19 LLVM_LIBC_FUNCTION(char *, strerror_r,
  20                    (int err_num, char *buf, size_t buflen)) {
  21   return const_cast<char *>(get_error_string(err_num, {buf, buflen}).data());
  22 }
  23
  24 } // namespace LIBC_NAMESPACE_DECL