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 
24 struct _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
40