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
11#define _LIBCPP_CHARCONV
12
13/*
14    charconv synopsis
15
16namespace std {
17
18  // floating-point format for primitive numerical conversion
19  enum class chars_format {
20    scientific = unspecified,
21    fixed = unspecified,
22    hex = unspecified,
23    general = fixed | scientific
24  };
25
26  // 23.20.2, primitive numerical output conversion
27  struct to_chars_result {
28    char* ptr;
29    errc ec;
30    friend bool operator==(const to_chars_result&, const to_chars_result&) = default; // since C++20
31  };
32
33  constexpr to_chars_result to_chars(char* first, char* last, see below value,
34                                     int base = 10);                                  // constexpr since C++23
35  to_chars_result to_chars(char* first, char* last, bool value,
36                           int base = 10) = delete;
37
38  to_chars_result to_chars(char* first, char* last, float value);
39  to_chars_result to_chars(char* first, char* last, double value);
40  to_chars_result to_chars(char* first, char* last, long double value);
41
42  to_chars_result to_chars(char* first, char* last, float value,
43                           chars_format fmt);
44  to_chars_result to_chars(char* first, char* last, double value,
45                           chars_format fmt);
46  to_chars_result to_chars(char* first, char* last, long double value,
47                           chars_format fmt);
48
49  to_chars_result to_chars(char* first, char* last, float value,
50                           chars_format fmt, int precision);
51  to_chars_result to_chars(char* first, char* last, double value,
52                           chars_format fmt, int precision);
53  to_chars_result to_chars(char* first, char* last, long double value,
54                           chars_format fmt, int precision);
55
56  // 23.20.3, primitive numerical input conversion
57  struct from_chars_result {
58    const char* ptr;
59    errc ec;
60    friend bool operator==(const from_chars_result&, const from_chars_result&) = default; // since C++20
61  };
62
63  constexpr from_chars_result from_chars(const char* first, const char* last,
64                               see below& value, int base = 10);                         // constexpr since C++23
65
66} // namespace std
67
68*/
69
70#include <__assert> // all public C++ headers provide the assertion handler
71#include <__charconv/chars_format.h>
72#include <__charconv/from_chars_integral.h>
73#include <__charconv/from_chars_result.h>
74#include <__charconv/tables.h>
75#include <__charconv/to_chars.h>
76#include <__charconv/to_chars_base_10.h>
77#include <__charconv/to_chars_floating_point.h>
78#include <__charconv/to_chars_integral.h>
79#include <__charconv/to_chars_result.h>
80#include <__charconv/traits.h>
81#include <__config>
82#include <__system_error/errc.h>
83#include <cmath> // for log2f
84#include <cstdint>
85#include <limits>
86
87#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
88#  pragma GCC system_header
89#endif
90
91_LIBCPP_BEGIN_NAMESPACE_STD
92
93_LIBCPP_END_NAMESPACE_STD
94
95#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
96#  include <concepts>
97#  include <cstdlib>
98#  include <cstring>
99#  include <iosfwd>
100#  include <type_traits>
101#endif
102
103#endif // _LIBCPP_CHARCONV
104