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
10#ifndef _LIBCPP___CHARCONV_FROM_CHARS_RESULT_H
11#define _LIBCPP___CHARCONV_FROM_CHARS_RESULT_H
12
13#include <__config>
14#include <__system_error/errc.h>
15
16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17#  pragma GCC system_header
18#endif
19
20_LIBCPP_BEGIN_NAMESPACE_STD
21
22#if _LIBCPP_STD_VER >= 17
23
24struct _LIBCPP_EXPORTED_FROM_ABI from_chars_result {
25  const char* ptr;
26  errc ec;
27#  if _LIBCPP_STD_VER >= 20
28  _LIBCPP_HIDE_FROM_ABI friend bool operator==(const from_chars_result&, const from_chars_result&) = default;
29#  endif
30#  if _LIBCPP_STD_VER >= 26
31  _LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const noexcept { return ec == errc{}; }
32#  endif
33};
34
35#endif // _LIBCPP_STD_VER >= 17
36
37_LIBCPP_END_NAMESPACE_STD
38
39#endif // _LIBCPP___CHARCONV_FROM_CHARS_RESULT_H