Mercurial > hg > CbC > CbC_llvm

comparison libcxx/include/charconv @ 173:0572611fdcc8 llvm10 llvm12

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reorgnization done
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 11:55:54 +0900
parents 1d019706d866
children 2e18cbf3894f
comparison
equal deleted inserted replaced
172:9fbae9c8bf63 173:0572611fdcc8
71 71
72 } // namespace std 72 } // namespace std
73 73
74 */ 74 */
75 75
76 #include <__config>
76 #include <__errc> 77 #include <__errc>
77 #include <type_traits> 78 #include <type_traits>
78 #include <limits> 79 #include <limits>
79 #include <stdint.h> 80 #include <stdint.h>
80 #include <string.h> 81 #include <string.h>
90 #include <__undef_macros> 91 #include <__undef_macros>
91 92
92 _LIBCPP_BEGIN_NAMESPACE_STD 93 _LIBCPP_BEGIN_NAMESPACE_STD
93 94
94 namespace __itoa { 95 namespace __itoa {
95 _LIBCPP_FUNC_VIS char* __u64toa(uint64_t __value, char* __buffer); 96 _LIBCPP_AVAILABILITY_TO_CHARS _LIBCPP_FUNC_VIS char* __u64toa(uint64_t __value, char* __buffer) _NOEXCEPT;
96 _LIBCPP_FUNC_VIS char* __u32toa(uint32_t __value, char* __buffer); 97 _LIBCPP_AVAILABILITY_TO_CHARS _LIBCPP_FUNC_VIS char* __u32toa(uint32_t __value, char* __buffer) _NOEXCEPT;
97 } 98 }
98 99
99 #ifndef _LIBCPP_CXX03_LANG 100 #ifndef _LIBCPP_CXX03_LANG
100 101
101 enum class _LIBCPP_ENUM_VIS chars_format 102 enum class _LIBCPP_ENUM_VIS chars_format
165 auto __t = (64 - __builtin_clzll(__v | 1)) * 1233 >> 12; 166 auto __t = (64 - __builtin_clzll(__v | 1)) * 1233 >> 12;
166 return __t - (__v < __pow10_64[__t]) + 1; 167 return __t - (__v < __pow10_64[__t]) + 1;
167 } 168 }
168 #endif 169 #endif
169 170
171 _LIBCPP_AVAILABILITY_TO_CHARS
170 static _LIBCPP_INLINE_VISIBILITY char* __convert(_Tp __v, char* __p) 172 static _LIBCPP_INLINE_VISIBILITY char* __convert(_Tp __v, char* __p)
171 { 173 {
172 return __u64toa(__v, __p); 174 return __u64toa(__v, __p);
173 } 175 }
174 176
187 auto __t = (32 - __builtin_clz(__v | 1)) * 1233 >> 12; 189 auto __t = (32 - __builtin_clz(__v | 1)) * 1233 >> 12;
188 return __t - (__v < __pow10_32[__t]) + 1; 190 return __t - (__v < __pow10_32[__t]) + 1;
189 } 191 }
190 #endif 192 #endif
191 193
194 _LIBCPP_AVAILABILITY_TO_CHARS
192 static _LIBCPP_INLINE_VISIBILITY char* __convert(_Tp __v, char* __p) 195 static _LIBCPP_INLINE_VISIBILITY char* __convert(_Tp __v, char* __p)
193 { 196 {
194 return __u32toa(__v, __p); 197 return __u32toa(__v, __p);
195 } 198 }
196 199
290 { 293 {
291 return static_cast<typename make_unsigned<_Tp>::type>(__x); 294 return static_cast<typename make_unsigned<_Tp>::type>(__x);
292 } 295 }
293 296
294 template <typename _Tp> 297 template <typename _Tp>
298 _LIBCPP_AVAILABILITY_TO_CHARS
295 inline _LIBCPP_INLINE_VISIBILITY to_chars_result 299 inline _LIBCPP_INLINE_VISIBILITY to_chars_result
296 __to_chars_itoa(char* __first, char* __last, _Tp __value, true_type) 300 __to_chars_itoa(char* __first, char* __last, _Tp __value, true_type)
297 { 301 {
298 auto __x = __to_unsigned(__value); 302 auto __x = __to_unsigned(__value);
299 if (__value < 0 && __first != __last) 303 if (__value < 0 && __first != __last)
304 308
305 return __to_chars_itoa(__first, __last, __x, false_type()); 309 return __to_chars_itoa(__first, __last, __x, false_type());
306 } 310 }
307 311
308 template <typename _Tp> 312 template <typename _Tp>
313 _LIBCPP_AVAILABILITY_TO_CHARS
309 inline _LIBCPP_INLINE_VISIBILITY to_chars_result 314 inline _LIBCPP_INLINE_VISIBILITY to_chars_result
310 __to_chars_itoa(char* __first, char* __last, _Tp __value, false_type) 315 __to_chars_itoa(char* __first, char* __last, _Tp __value, false_type)
311 { 316 {
312 using __tx = __itoa::__traits<_Tp>; 317 using __tx = __itoa::__traits<_Tp>;
313 auto __diff = __last - __first; 318 auto __diff = __last - __first;
335 } 340 }
336 #endif 341 #endif
337 } 342 }
338 343
339 template <typename _Tp> 344 template <typename _Tp>
345 _LIBCPP_AVAILABILITY_TO_CHARS
340 inline _LIBCPP_INLINE_VISIBILITY to_chars_result 346 inline _LIBCPP_INLINE_VISIBILITY to_chars_result
341 __to_chars_integral(char* __first, char* __last, _Tp __value, int __base, 347 __to_chars_integral(char* __first, char* __last, _Tp __value, int __base,
342 true_type) 348 true_type)
343 { 349 {
344 auto __x = __to_unsigned(__value); 350 auto __x = __to_unsigned(__value);
350 356
351 return __to_chars_integral(__first, __last, __x, __base, false_type()); 357 return __to_chars_integral(__first, __last, __x, __base, false_type());
352 } 358 }
353 359
354 template <typename _Tp> 360 template <typename _Tp>
361 _LIBCPP_AVAILABILITY_TO_CHARS
355 inline _LIBCPP_INLINE_VISIBILITY to_chars_result 362 inline _LIBCPP_INLINE_VISIBILITY to_chars_result
356 __to_chars_integral(char* __first, char* __last, _Tp __value, int __base, 363 __to_chars_integral(char* __first, char* __last, _Tp __value, int __base,
357 false_type) 364 false_type)
358 { 365 {
359 if (__base == 10) 366 if (__base == 10)
378 return {__first + __len, {}}; 385 return {__first + __len, {}};
379 } 386 }
380 } 387 }
381 388
382 template <typename _Tp, typename enable_if<is_integral<_Tp>::value, int>::type = 0> 389 template <typename _Tp, typename enable_if<is_integral<_Tp>::value, int>::type = 0>
390 _LIBCPP_AVAILABILITY_TO_CHARS
383 inline _LIBCPP_INLINE_VISIBILITY to_chars_result 391 inline _LIBCPP_INLINE_VISIBILITY to_chars_result
384 to_chars(char* __first, char* __last, _Tp __value) 392 to_chars(char* __first, char* __last, _Tp __value)
385 { 393 {
386 return __to_chars_itoa(__first, __last, __value, is_signed<_Tp>()); 394 return __to_chars_itoa(__first, __last, __value, is_signed<_Tp>());
387 } 395 }
388 396
389 template <typename _Tp, typename enable_if<is_integral<_Tp>::value, int>::type = 0> 397 template <typename _Tp, typename enable_if<is_integral<_Tp>::value, int>::type = 0>
398 _LIBCPP_AVAILABILITY_TO_CHARS
390 inline _LIBCPP_INLINE_VISIBILITY to_chars_result 399 inline _LIBCPP_INLINE_VISIBILITY to_chars_result
391 to_chars(char* __first, char* __last, _Tp __value, int __base) 400 to_chars(char* __first, char* __last, _Tp __value, int __base)
392 { 401 {
393 _LIBCPP_ASSERT(2 <= __base && __base <= 36, "base not in [2, 36]"); 402 _LIBCPP_ASSERT(2 <= __base && __base <= 36, "base not in [2, 36]");
394 return __to_chars_integral(__first, __last, __value, __base, 403 return __to_chars_integral(__first, __last, __value, __base,