// -*- 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 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

struct __to_chars_result {
  char* __ptr;
  errc __ec;

#if _LIBCPP_STD_VER >= 17
  _LIBCPP_HIDE_FROM_ABI constexpr operator to_chars_result() { return {__ptr, __ec}; }
#endif
};

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP___CHARCONV_TO_CHARS_RESULT_H