libc/src/__support/StringUtil/error_to_string.h

   1 //===-- Definition of a class for mapping errors to strings -----*- C++ -*-===//
   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 #ifndef LLVM_LIBC_SRC___SUPPORT_STRINGUTIL_ERROR_TO_STRING_H
  10 #define LLVM_LIBC_SRC___SUPPORT_STRINGUTIL_ERROR_TO_STRING_H
  11
  12 #include "src/__support/CPP/optional.h"
  13 #include "src/__support/CPP/span.h"
  14 #include "src/__support/CPP/string_view.h"
  15 #include "src/__support/macros/config.h"
  16
  17 namespace LIBC_NAMESPACE_DECL {
  18
  19 cpp::string_view get_error_string(int err_num);
  20
  21 cpp::string_view get_error_string(int err_num, cpp::span<char> buffer);
  22
  23 cpp::optional<cpp::string_view> try_get_errno_name(int err_num);
  24
  25 } // namespace LIBC_NAMESPACE_DECL
  26
  27 #endif // LLVM_LIBC_SRC___SUPPORT_STRINGUTIL_ERROR_TO_STRING_H