| // -*- 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 |
| #define _LIBCPP_CHARCONV |
| |
| /* |
| charconv synopsis |
| |
| namespace std { |
| |
| // floating-point format for primitive numerical conversion |
| enum class chars_format { |
| scientific = unspecified, |
| fixed = unspecified, |
| hex = unspecified, |
| general = fixed | scientific |
| }; |
| |
| // 23.20.2, primitive numerical output conversion |
| struct to_chars_result { |
| char* ptr; |
| errc ec; |
| friend bool operator==(const to_chars_result&, const to_chars_result&) = default; // since C++20 |
| constexpr explicit operator bool() const noexcept { return ec == errc{}; } // since C++26 |
| }; |
| |
| constexpr to_chars_result to_chars(char* first, char* last, see below value, |
| int base = 10); // constexpr since C++23 |
| to_chars_result to_chars(char* first, char* last, bool value, |
| int base = 10) = delete; |
| |
| to_chars_result to_chars(char* first, char* last, float value); |
| to_chars_result to_chars(char* first, char* last, double value); |
| to_chars_result to_chars(char* first, char* last, long double value); |
| |
| to_chars_result to_chars(char* first, char* last, float value, |
| chars_format fmt); |
| to_chars_result to_chars(char* first, char* last, double value, |
| chars_format fmt); |
| to_chars_result to_chars(char* first, char* last, long double value, |
| chars_format fmt); |
| |
| to_chars_result to_chars(char* first, char* last, float value, |
| chars_format fmt, int precision); |
| to_chars_result to_chars(char* first, char* last, double value, |
| chars_format fmt, int precision); |
| to_chars_result to_chars(char* first, char* last, long double value, |
| chars_format fmt, int precision); |
| |
| // 23.20.3, primitive numerical input conversion |
| struct from_chars_result { |
| const char* ptr; |
| errc ec; |
| friend bool operator==(const from_chars_result&, const from_chars_result&) = default; // since C++20 |
| constexpr explicit operator bool() const noexcept { return ec == errc{}; } // since C++26 |
| }; |
| |
| constexpr from_chars_result from_chars(const char* first, const char* last, |
| see below& value, int base = 10); // constexpr since C++23 |
| |
| } // namespace std |
| |
| */ |
| |
| #include <__config> |
| |
| #if _LIBCPP_STD_VER >= 17 |
| # include <__charconv/chars_format.h> |
| # include <__charconv/from_chars_integral.h> |
| # include <__charconv/from_chars_result.h> |
| # include <__charconv/tables.h> |
| # include <__charconv/to_chars.h> |
| # include <__charconv/to_chars_base_10.h> |
| # include <__charconv/to_chars_floating_point.h> |
| # include <__charconv/to_chars_integral.h> |
| # include <__charconv/to_chars_result.h> |
| # include <__charconv/traits.h> |
| #endif // _LIBCPP_STD_VER >= 17 |
| |
| #include <version> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 14 |
| # include <cerrno> |
| # include <cstddef> |
| # include <initializer_list> |
| # include <new> |
| #endif |
| |
| #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 |
| # include <cmath> |
| # include <concepts> |
| # include <cstdint> |
| # include <cstdlib> |
| # include <cstring> |
| # include <iosfwd> |
| # include <limits> |
| # include <type_traits> |
| #endif |
| |
| #endif // _LIBCPP_CHARCONV |