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1 // -*- C++ -*-
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2 //===----------------------------------------------------------------------===//
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3 //
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4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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5 // See https://llvm.org/LICENSE.txt for license information.
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6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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7 //
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8 //===----------------------------------------------------------------------===//
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9
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10 #ifndef _LIBCPP_CHARCONV
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11 #define _LIBCPP_CHARCONV
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12
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13 /*
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14 charconv synopsis
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15
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16 namespace std {
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17
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18 // floating-point format for primitive numerical conversion
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19 enum class chars_format {
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20 scientific = unspecified,
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21 fixed = unspecified,
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22 hex = unspecified,
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23 general = fixed | scientific
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24 };
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25
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26 // 23.20.2, primitive numerical output conversion
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27 struct to_chars_result {
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28 char* ptr;
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29 errc ec;
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30 friend bool operator==(const to_chars_result&, const to_chars_result&) = default; // since C++20
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31 };
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32
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33 constexpr to_chars_result to_chars(char* first, char* last, see below value,
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34 int base = 10); // constexpr since C++23
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35 to_chars_result to_chars(char* first, char* last, bool value,
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36 int base = 10) = delete;
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37
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38 to_chars_result to_chars(char* first, char* last, float value);
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39 to_chars_result to_chars(char* first, char* last, double value);
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40 to_chars_result to_chars(char* first, char* last, long double value);
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41
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42 to_chars_result to_chars(char* first, char* last, float value,
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43 chars_format fmt);
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44 to_chars_result to_chars(char* first, char* last, double value,
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45 chars_format fmt);
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46 to_chars_result to_chars(char* first, char* last, long double value,
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47 chars_format fmt);
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48
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49 to_chars_result to_chars(char* first, char* last, float value,
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50 chars_format fmt, int precision);
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51 to_chars_result to_chars(char* first, char* last, double value,
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52 chars_format fmt, int precision);
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53 to_chars_result to_chars(char* first, char* last, long double value,
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54 chars_format fmt, int precision);
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55
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56 // 23.20.3, primitive numerical input conversion
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57 struct from_chars_result {
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58 const char* ptr;
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59 errc ec;
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60 friend bool operator==(const from_chars_result&, const from_chars_result&) = default; // since C++20
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61 };
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62
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63 constexpr from_chars_result from_chars(const char* first, const char* last,
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64 see below& value, int base = 10); // constexpr since C++23
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65
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66 } // namespace std
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67
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68 */
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69
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70 #include <__assert> // all public C++ headers provide the assertion handler
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71 #include <__charconv/chars_format.h>
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72 #include <__charconv/from_chars_integral.h>
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73 #include <__charconv/from_chars_result.h>
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74 #include <__charconv/tables.h>
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75 #include <__charconv/to_chars.h>
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76 #include <__charconv/to_chars_base_10.h>
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77 #include <__charconv/to_chars_floating_point.h>
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78 #include <__charconv/to_chars_integral.h>
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79 #include <__charconv/to_chars_result.h>
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80 #include <__charconv/traits.h>
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81 #include <__config>
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82 #include <__system_error/errc.h>
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83 #include <cmath> // for log2f
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84 #include <cstdint>
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85 #include <limits>
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86
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87 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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88 # pragma GCC system_header
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89 #endif
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90
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91 _LIBCPP_BEGIN_NAMESPACE_STD
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92
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93 _LIBCPP_END_NAMESPACE_STD
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94
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95 #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
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96 # include <concepts>
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97 # include <cstdlib>
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98 # include <cstring>
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99 # include <iosfwd>
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100 # include <type_traits>
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101 #endif
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102
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103 #endif // _LIBCPP_CHARCONV
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