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
  13 #include <stddef.h>
  14
  15 namespace __llvm_libc {
  16
  17 // This is the gnu version of strerror_r. The XSI version may be added later.
  18 LLVM_LIBC_FUNCTION(char *, strerror_r,
  19                    (int err_num, char *buf, size_t buflen)) {
  20   return const_cast<char *>(get_error_string(err_num, {buf, buflen}).data());
  21 }
  22
  23 } // namespace __llvm_libc