libcxx/src/charconv.cpp

   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
  18 namespace __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
  36 to_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
  40 to_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
  44 to_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
  49 to_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
  53 to_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
  57 to_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
  62 to_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
  67 to_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
  72 to_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