1 /* Copyright (C) 1995-1999, 2000, 2001 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19 /* 20 * ISO C99 Standard: 7.24 21 * Extended multibyte and wide character utilities <wchar.h> 22 */ 23 24 #ifndef _WCHAR_H 25 26 #ifndef __need_mbstate_t 27 # define _WCHAR_H 1 28 # include <features.h> 29 #endif 30 31 #ifdef _WCHAR_H 32 /* Get FILE definition. */ 33 # define __need___FILE 34 # ifdef __USE_UNIX98 35 # define __need_FILE 36 # endif 37 # include <libio/stdio.h> 38 /* Get va_list definition. */ 39 # define __need___va_list 40 # include <stdarg.h> 41 42 /* Get size_t, wchar_t, wint_t and NULL from <stddef.h>. */ 43 # define __need_size_t 44 # define __need_wchar_t 45 # define __need_NULL 46 #endif 47 #define __need_wint_t 48 #include <stddef.h> 49 50 #include <bits/wchar.h> 51 52 /* We try to get wint_t from <stddef.h>, but not all GCC versions define it 53 there. So define it ourselves if it remains undefined. */ 54 #ifndef _WINT_T 55 /* Integral type unchanged by default argument promotions that can 56 hold any value corresponding to members of the extended character 57 set, as well as at least one value that does not correspond to any 58 member of the extended character set. */ 59 # define _WINT_T 60 typedef unsigned int wint_t; 61 #endif 62 63 64 #ifndef __mbstate_t_defined 65 # define __mbstate_t_defined 1 66 /* Conversion state information - for now a mixture between glibc's own idea of 67 mbstate_t and our own. */ 68 typedef struct 69 { 70 void* converter; 71 char charset[64]; 72 union 73 { 74 unsigned int count; 75 int __count; 76 }; 77 union 78 { 79 char data[1024 + 8]; // 1024 bytes for data, 8 for alignment space 80 union 81 { 82 wint_t __wch; 83 char __wchb[4]; 84 } __value; /* Value so far. */ 85 }; 86 } __mbstate_t; 87 #endif 88 #undef __need_mbstate_t 89 90 91 /* The rest of the file is only used if used if __need_mbstate_t is not 92 defined. */ 93 #ifdef _WCHAR_H 94 95 /* Public type. */ 96 typedef __mbstate_t mbstate_t; 97 98 #ifndef WCHAR_MIN 99 /* These constants might also be defined in <inttypes.h>. */ 100 # define WCHAR_MIN __WCHAR_MIN 101 # define WCHAR_MAX __WCHAR_MAX 102 #endif 103 104 #ifndef WEOF 105 # define WEOF (0xffffffffu) 106 #endif 107 108 /* For XPG4 compliance we have to define the stuff from <wctype.h> here 109 as well. */ 110 #if defined __USE_XOPEN && !defined __USE_UNIX98 111 # include <wctype.h> 112 #endif 113 114 /* This incomplete type is defined in <time.h> but needed here because 115 of `wcsftime'. */ 116 struct tm; 117 118 119 __BEGIN_DECLS 120 121 122 123 /* Convert initial portion of the wide string NPTR to `double' 124 representation. */ 125 extern double wcstod (__const wchar_t *__restrict __nptr, 126 wchar_t **__restrict __endptr) __THROW; 127 128 #ifdef __USE_ISOC99 129 /* Likewise for `float' and `long double' sizes of floating-point numbers. */ 130 extern float wcstof (__const wchar_t *__restrict __nptr, 131 wchar_t **__restrict __endptr) __THROW; 132 extern long double wcstold (__const wchar_t *__restrict __nptr, 133 wchar_t **__restrict __endptr) __THROW; 134 #endif /* C99 */ 135 136 137 /* Convert initial portion of wide string NPTR to `long int' 138 representation. */ 139 extern long int wcstol (__const wchar_t *__restrict __nptr, 140 wchar_t **__restrict __endptr, int __base) __THROW; 141 142 /* Convert initial portion of wide string NPTR to `unsigned long int' 143 representation. */ 144 extern unsigned long int wcstoul (__const wchar_t *__restrict __nptr, 145 wchar_t **__restrict __endptr, int __base) 146 __THROW; 147 148 #if defined __GNUC__ && defined __USE_GNU 149 /* Convert initial portion of wide string NPTR to `long int' 150 representation. */ 151 __extension__ 152 extern long long int wcstoq (__const wchar_t *__restrict __nptr, 153 wchar_t **__restrict __endptr, int __base) 154 __THROW; 155 156 /* Convert initial portion of wide string NPTR to `unsigned long long int' 157 representation. */ 158 __extension__ 159 extern unsigned long long int wcstouq (__const wchar_t *__restrict __nptr, 160 wchar_t **__restrict __endptr, 161 int __base) __THROW; 162 #endif /* GCC and use GNU. */ 163 164 #if defined __USE_ISOC99 || (defined __GNUC__ && defined __USE_GNU) 165 /* Convert initial portion of wide string NPTR to `long int' 166 representation. */ 167 __extension__ 168 extern long long int wcstoll (__const wchar_t *__restrict __nptr, 169 wchar_t **__restrict __endptr, int __base) 170 __THROW; 171 172 /* Convert initial portion of wide string NPTR to `unsigned long long int' 173 representation. */ 174 __extension__ 175 extern unsigned long long int wcstoull (__const wchar_t *__restrict __nptr, 176 wchar_t **__restrict __endptr, 177 int __base) __THROW; 178 #endif /* ISO C99 or GCC and GNU. */ 179 180 181 /* The internal entry points for `wcstoX' take an extra flag argument 182 saying whether or not to parse locale-dependent number grouping. */ 183 extern double __wcstod_internal (__const wchar_t *__restrict __nptr, 184 wchar_t **__restrict __endptr, int __group) 185 __THROW; 186 extern float __wcstof_internal (__const wchar_t *__restrict __nptr, 187 wchar_t **__restrict __endptr, int __group) 188 __THROW; 189 extern long double __wcstold_internal (__const wchar_t *__restrict __nptr, 190 wchar_t **__restrict __endptr, 191 int __group) __THROW; 192 193 #ifndef __wcstol_internal_defined 194 extern long int __wcstol_internal (__const wchar_t *__restrict __nptr, 195 wchar_t **__restrict __endptr, 196 int __base, int __group) __THROW; 197 # define __wcstol_internal_defined 1 198 #endif 199 #ifndef __wcstoul_internal_defined 200 extern unsigned long int __wcstoul_internal (__const wchar_t *__restrict __npt, 201 wchar_t **__restrict __endptr, 202 int __base, int __group) __THROW; 203 # define __wcstoul_internal_defined 1 204 #endif 205 #ifndef __wcstoll_internal_defined 206 __extension__ 207 extern long long int __wcstoll_internal (__const wchar_t *__restrict __nptr, 208 wchar_t **__restrict __endptr, 209 int __base, int __group) __THROW; 210 # define __wcstoll_internal_defined 1 211 #endif 212 #ifndef __wcstoull_internal_defined 213 __extension__ 214 extern unsigned long long int __wcstoull_internal (__const wchar_t * 215 __restrict __nptr, 216 wchar_t ** 217 __restrict __endptr, 218 int __base, 219 int __group) __THROW; 220 # define __wcstoull_internal_defined 1 221 #endif 222 223 224 #if defined __OPTIMIZE__ && __GNUC__ >= 2 225 /* Define inline functions which call the internal entry points. */ 226 227 extern __inline double wcstod (__const wchar_t *__restrict __nptr, 228 wchar_t **__restrict __endptr) __THROW 229 { return __wcstod_internal (__nptr, __endptr, 0); } 230 extern __inline long int wcstol (__const wchar_t *__restrict __nptr, 231 wchar_t **__restrict __endptr, 232 int __base) __THROW 233 { return __wcstol_internal (__nptr, __endptr, __base, 0); } 234 extern __inline unsigned long int wcstoul (__const wchar_t *__restrict __nptr, 235 wchar_t **__restrict __endptr, 236 int __base) __THROW 237 { return __wcstoul_internal (__nptr, __endptr, __base, 0); } 238 239 # ifdef __USE_GNU 240 extern __inline float wcstof (__const wchar_t *__restrict __nptr, 241 wchar_t **__restrict __endptr) __THROW 242 { return __wcstof_internal (__nptr, __endptr, 0); } 243 extern __inline long double wcstold (__const wchar_t *__restrict __nptr, 244 wchar_t **__restrict __endptr) __THROW 245 { return __wcstold_internal (__nptr, __endptr, 0); } 246 247 248 __extension__ 249 extern __inline long long int wcstoq (__const wchar_t *__restrict __nptr, 250 wchar_t **__restrict __endptr, 251 int __base) __THROW 252 { return __wcstoll_internal (__nptr, __endptr, __base, 0); } 253 __extension__ 254 extern __inline unsigned long long int wcstouq (__const wchar_t * 255 __restrict __nptr, 256 wchar_t **__restrict __endptr, 257 int __base) __THROW 258 { return __wcstoull_internal (__nptr, __endptr, __base, 0); } 259 # endif /* Use GNU. */ 260 #endif /* Optimizing GCC >=2. */ 261 262 263 /* Wide character I/O functions. */ 264 #if defined __USE_ISOC99 || defined __USE_UNIX98 265 266 /* Select orientation for stream. */ 267 extern int fwide (__FILE *__fp, int __mode) __THROW; 268 269 270 /* Write formatted output to STREAM. */ 271 extern int fwprintf (__FILE *__restrict __stream, 272 __const wchar_t *__restrict __format, ...) 273 __THROW /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */; 274 /* Write formatted output to stdout. */ 275 extern int wprintf (__const wchar_t *__restrict __format, ...) 276 __THROW /* __attribute__ ((__format__ (__wprintf__, 1, 2))) */; 277 /* Write formatted output of at most N characters to S. */ 278 extern int swprintf (wchar_t *__restrict __s, size_t __n, 279 __const wchar_t *__restrict __format, ...) 280 __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 4))) */; 281 282 /* Write formatted output to S from argument list ARG. */ 283 extern int vfwprintf (__FILE *__restrict __s, 284 __const wchar_t *__restrict __format, 285 __gnuc_va_list __arg) 286 __THROW /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */; 287 /* Write formatted output to stdout from argument list ARG. */ 288 extern int vwprintf (__const wchar_t *__restrict __format, 289 __gnuc_va_list __arg) 290 __THROW /* __attribute__ ((__format__ (__wprintf__, 1, 0))) */; 291 /* Write formatted output of at most N character to S from argument 292 list ARG. */ 293 extern int vswprintf (wchar_t *__restrict __s, size_t __n, 294 __const wchar_t *__restrict __format, 295 __gnuc_va_list __arg) 296 __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */; 297 298 299 /* Read formatted input from STREAM. */ 300 extern int fwscanf (__FILE *__restrict __stream, 301 __const wchar_t *__restrict __format, ...) 302 __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */; 303 /* Read formatted input from stdin. */ 304 extern int wscanf (__const wchar_t *__restrict __format, ...) 305 __THROW /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */; 306 /* Read formatted input from S. */ 307 extern int swscanf (__const wchar_t *__restrict __s, 308 __const wchar_t *__restrict __format, ...) 309 __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */; 310 #endif /* Use ISO C99 and Unix98. */ 311 312 #ifdef __USE_ISOC99 313 /* Read formatted input from S into argument list ARG. */ 314 extern int vfwscanf (__FILE *__restrict __s, 315 __const wchar_t *__restrict __format, 316 __gnuc_va_list __arg) 317 __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */; 318 /* Read formatted input from stdin into argument list ARG. */ 319 extern int vwscanf (__const wchar_t *__restrict __format, 320 __gnuc_va_list __arg) 321 __THROW /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */; 322 /* Read formatted input from S into argument list ARG. */ 323 extern int vswscanf (__const wchar_t *__restrict __s, 324 __const wchar_t *__restrict __format, 325 __gnuc_va_list __arg) 326 __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */; 327 #endif /* Use ISO C99. */ 328 329 330 /* Read a character from STREAM. */ 331 extern wint_t fgetwc (__FILE *__stream) __THROW; 332 extern wint_t getwc (__FILE *__stream) __THROW; 333 334 /* Read a character from stdin. */ 335 extern wint_t getwchar (void) __THROW; 336 337 338 /* Write a character to STREAM. */ 339 extern wint_t fputwc (wchar_t __wc, __FILE *__stream) __THROW; 340 extern wint_t putwc (wchar_t __wc, __FILE *__stream) __THROW; 341 342 /* Write a character to stdout. */ 343 extern wint_t putwchar (wchar_t __wc) __THROW; 344 345 346 /* Get a newline-terminated wide character string of finite length 347 from STREAM. */ 348 extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n, 349 __FILE *__restrict __stream) __THROW; 350 351 /* Write a string to STREAM. */ 352 extern int fputws (__const wchar_t *__restrict __ws, 353 __FILE *__restrict __stream) __THROW; 354 355 356 /* Push a character back onto the input buffer of STREAM. */ 357 extern wint_t ungetwc (wint_t __wc, __FILE *__stream) __THROW; 358 359 360 #ifdef __USE_GNU 361 /* These are defined to be equivalent to the `char' functions defined 362 in POSIX.1:1996. */ 363 extern wint_t getwc_unlocked (__FILE *__stream) __THROW; 364 extern wint_t getwchar_unlocked (void) __THROW; 365 366 /* This is the wide character version of a GNU extension. */ 367 extern wint_t fgetwc_unlocked (__FILE *__stream) __THROW; 368 369 /* Faster version when locking is not necessary. */ 370 extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream) __THROW; 371 372 /* These are defined to be equivalent to the `char' functions defined 373 in POSIX.1:1996. */ 374 extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream) __THROW; 375 extern wint_t putwchar_unlocked (wchar_t __wc) __THROW; 376 377 378 /* This function does the same as `fgetws' but does not lock the stream. */ 379 extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n, 380 __FILE *__restrict __stream) __THROW; 381 382 /* This function does the same as `fputws' but does not lock the stream. */ 383 extern int fputws_unlocked (__const wchar_t *__restrict __ws, 384 __FILE *__restrict __stream) __THROW; 385 #endif 386 387 388 __END_DECLS 389 390 #endif /* _WCHAR_H defined */ 391 392 #endif /* wchar.h */ 393