llvm-capstone/libcxx/include/__charconv/to_chars_result.h
Mark de Wever 92ac360063 [libc++][charconv] Adds operator bool.
Implements
- P2497R0 Testing for success or failure of <charconv> functions

Depends on D153192

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D153199
2023-08-23 19:25:10 +02:00

40 lines
1.1 KiB
C++

// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___CHARCONV_TO_CHARS_RESULT_H
#define _LIBCPP___CHARCONV_TO_CHARS_RESULT_H
#include <__config>
#include <__system_error/errc.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER >= 17
struct _LIBCPP_EXPORTED_FROM_ABI to_chars_result {
char* ptr;
errc ec;
# if _LIBCPP_STD_VER >= 20
_LIBCPP_HIDE_FROM_ABI friend bool operator==(const to_chars_result&, const to_chars_result&) = default;
# endif
# if _LIBCPP_STD_VER >= 26
_LIBCPP_HIDE_FROM_ABI constexpr explicit operator bool() const noexcept { return ec == errc{}; }
# endif
};
#endif // _LIBCPP_STD_VER >= 17
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___CHARCONV_TO_CHARS_RESULT_H