1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include <charconv>
10#include <string.h>
11
12#include "include/to_chars_floating_point.h"
13
14_LIBCPP_BEGIN_NAMESPACE_STD
15
16#ifndef _LIBCPP_ABI_DO_NOT_EXPORT_TO_CHARS_BASE_10
17
18namespace __itoa {
19
20_LIBCPP_EXPORTED_FROM_ABI char* __u32toa(uint32_t value, char* buffer) noexcept { return __base_10_u32(buffer, value); }
21
22_LIBCPP_EXPORTED_FROM_ABI char* __u64toa(uint64_t value, char* buffer) noexcept { return __base_10_u64(buffer, value); }
23
24} // namespace __itoa
25
26#endif // _LIBCPP_ABI_DO_NOT_EXPORT_TO_CHARS_BASE_10
27
28// The original version of floating-point to_chars was written by Microsoft and
29// contributed with the following license.
30
31// Copyright (c) Microsoft Corporation.
32// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
33
34// This implementation is dedicated to the memory of Mary and Thavatchai.
35
36to_chars_result to_chars(char* __first, char* __last, float __value) {
37 return _Floating_to_chars<_Floating_to_chars_overload::_Plain>(__first, __last, __value, chars_format{}, 0);
38}
39
40to_chars_result to_chars(char* __first, char* __last, double __value) {
41 return _Floating_to_chars<_Floating_to_chars_overload::_Plain>(__first, __last, __value, chars_format{}, 0);
42}
43
44to_chars_result to_chars(char* __first, char* __last, long double __value) {
45 return _Floating_to_chars<_Floating_to_chars_overload::_Plain>(
46 __first, __last, static_cast<double>(__value), chars_format{}, 0);
47}
48
49to_chars_result to_chars(char* __first, char* __last, float __value, chars_format __fmt) {
50 return _Floating_to_chars<_Floating_to_chars_overload::_Format_only>(__first, __last, __value, __fmt, 0);
51}
52
53to_chars_result to_chars(char* __first, char* __last, double __value, chars_format __fmt) {
54 return _Floating_to_chars<_Floating_to_chars_overload::_Format_only>(__first, __last, __value, __fmt, 0);
55}
56
57to_chars_result to_chars(char* __first, char* __last, long double __value, chars_format __fmt) {
58 return _Floating_to_chars<_Floating_to_chars_overload::_Format_only>(
59 __first, __last, static_cast<double>(__value), __fmt, 0);
60}
61
62to_chars_result to_chars(char* __first, char* __last, float __value, chars_format __fmt, int __precision) {
63 return _Floating_to_chars<_Floating_to_chars_overload::_Format_precision>(
64 __first, __last, __value, __fmt, __precision);
65}
66
67to_chars_result to_chars(char* __first, char* __last, double __value, chars_format __fmt, int __precision) {
68 return _Floating_to_chars<_Floating_to_chars_overload::_Format_precision>(
69 __first, __last, __value, __fmt, __precision);
70}
71
72to_chars_result to_chars(char* __first, char* __last, long double __value, chars_format __fmt, int __precision) {
73 return _Floating_to_chars<_Floating_to_chars_overload::_Format_precision>(
74 __first, __last, static_cast<double>(__value), __fmt, __precision);
75}
76
77_LIBCPP_END_NAMESPACE_STD
78

source code of libcxx/src/charconv.cpp