wcsmbs/bits/wchar2.h

   1 /* Checking macros for wchar functions.
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef _WCHAR_H
  21 # error "Never include <bits/wchar.h> directly; use <wchar.h> instead."
  22 #endif
  23
  24
  25 extern wchar_t *__wmemcpy_chk (wchar_t *__restrict __s1,
  26                                __const wchar_t *__restrict __s2, size_t __n,
  27                                size_t __ns1) __THROW;
  28 extern wchar_t *__REDIRECT (__wmemcpy_alias, (wchar_t *__restrict __s1,
  29                                               __const wchar_t *__restrict __s2,
  30                                               size_t __n), wmemcpy) __THROW;
  31
  32 extern __always_inline wchar_t *
  33 wmemcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2,
  34          size_t __n)
  35 {
  36   if (__bos0 (__s1) != (size_t) -1)
  37     return __wmemcpy_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t));
  38   return __wmemcpy_alias (__s1, __s2, __n);
  39 }
  40
  41
  42 extern wchar_t *__wmemmove_chk (wchar_t *__s1, __const wchar_t *__s2,
  43                                 size_t __n, size_t __ns1) __THROW;
  44 extern wchar_t *__REDIRECT (__wmemmove_alias, (wchar_t *__s1,
  45                                                __const wchar_t *__s2,
  46                                                size_t __n), wmemmove) __THROW;
  47
  48 extern __always_inline wchar_t *
  49 wmemmove (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2,
  50           size_t __n)
  51 {
  52   if (__bos0 (__s1) != (size_t) -1)
  53     return __wmemmove_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t));
  54   return __wmemmove_alias (__s1, __s2, __n);
  55 }
  56
  57
  58 #ifdef __USE_GNU
  59 extern wchar_t *__wmempcpy_chk (wchar_t *__restrict __s1,
  60                                 __const wchar_t *__restrict __s2, size_t __n,
  61                                 size_t __ns1) __THROW;
  62 extern wchar_t *__REDIRECT (__wmempcpy_alias,
  63                             (wchar_t *__restrict __s1,
  64                              __const wchar_t *__restrict __s2,
  65                              size_t __n), wmempcpy) __THROW;
  66
  67 extern __always_inline wchar_t *
  68 wmempcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2,
  69           size_t __n)
  70 {
  71   if (__bos0 (__s1) != (size_t) -1)
  72     return __wmempcpy_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t));
  73   return __wmempcpy_alias (__s1, __s2, __n);
  74 }
  75 #endif
  76
  77
  78 extern wchar_t *__wmemset_chk (wchar_t *__s, wchar_t __c, size_t __n,
  79                                size_t __ns) __THROW;
  80 extern wchar_t *__REDIRECT (__wmemset_alias, (wchar_t *__s, wchar_t __c,
  81                                               size_t __n), wmemset) __THROW;
  82
  83 extern __always_inline wchar_t *
  84 wmemset (wchar_t *__restrict __s, wchar_t __c, size_t __n)
  85 {
  86   if (__bos0 (__s) != (size_t) -1)
  87     return __wmemset_chk (__s, __c, __n, __bos0 (__s) / sizeof (wchar_t));
  88   return __wmemset_alias (__s, __c, __n);
  89 }
  90
  91
  92 extern wchar_t *__wcscpy_chk (wchar_t *__restrict __dest,
  93                               __const wchar_t *__restrict __src,
  94                               size_t __n) __THROW;
  95 extern wchar_t *__REDIRECT (__wcscpy_alias,
  96                             (wchar_t *__restrict __dest,
  97                              __const wchar_t *__restrict __src), wcscpy)
  98   __THROW;
  99
 100 extern __always_inline wchar_t *
 101 wcscpy (wchar_t *__dest, __const wchar_t *__src)
 102 {
 103   if (__bos (__dest) != (size_t) -1)
 104     return __wcscpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t));
 105   return __wcscpy_alias (__dest, __src);
 106 }
 107
 108
 109 extern wchar_t *__wcpcpy_chk (wchar_t *__dest, __const wchar_t *__src,
 110                               size_t __destlen) __THROW;
 111 extern wchar_t *__REDIRECT (__wcpcpy_alias, (wchar_t *__dest,
 112                                              __const wchar_t *__src), wcpcpy)
 113   __THROW;
 114
 115 extern __always_inline wchar_t *
 116 wcpcpy (wchar_t *__dest, __const wchar_t *__src)
 117 {
 118   if (__bos (__dest) != (size_t) -1)
 119     return __wcpcpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t));
 120   return __wcpcpy_alias (__dest, __src);
 121 }
 122
 123
 124 extern wchar_t *__wcsncpy_chk (wchar_t *__restrict __dest,
 125                                __const wchar_t *__restrict __src, size_t __n,
 126                                size_t __destlen) __THROW;
 127 extern wchar_t *__REDIRECT (__wcsncpy_alias,
 128                             (wchar_t *__restrict __dest,
 129                              __const wchar_t *__restrict __src, size_t __n),
 130                             wcsncpy) __THROW;
 131
 132 extern __always_inline wchar_t *
 133 wcsncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n)
 134 {
 135   if (__bos (__dest) != (size_t) -1
 136       && (!__builtin_constant_p (__n) || __bos (__dest) >= __n))
 137     return __wcsncpy_chk (__dest, __src, __n,
 138                           __bos (__dest) / sizeof (wchar_t));
 139   return __wcsncpy_alias (__dest, __src, __n);
 140 }
 141
 142
 143 extern wchar_t *__wcpncpy_chk (wchar_t *__restrict __dest,
 144                                __const wchar_t *__restrict __src, size_t __n,
 145                                size_t __destlen) __THROW;
 146 extern wchar_t *__REDIRECT (__wcpncpy_alias,
 147                             (wchar_t *__restrict __dest,
 148                              __const wchar_t *__restrict __src, size_t __n),
 149                             wcpncpy) __THROW;
 150
 151 extern __always_inline wchar_t *
 152 wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n)
 153 {
 154   if (__bos (__dest) != (size_t) -1
 155       && (!__builtin_constant_p (__n) || __bos (__dest) >= __n))
 156     return __wcpncpy_chk (__dest, __src, __n,
 157                           __bos (__dest) / sizeof (wchar_t));
 158   return __wcpncpy_alias (__dest, __src, __n);
 159 }
 160
 161
 162 extern wchar_t *__wcscat_chk (wchar_t *__restrict __dest,
 163                               __const wchar_t *__restrict __src,
 164                               size_t __destlen) __THROW;
 165 extern wchar_t *__REDIRECT (__wcscat_alias,
 166                             (wchar_t *__restrict __dest,
 167                              __const wchar_t *__restrict __src), wcscat)
 168   __THROW;
 169
 170 extern __always_inline wchar_t *
 171 wcscat (wchar_t *__dest, __const wchar_t *__src)
 172 {
 173   if (__bos (__dest) != (size_t) -1)
 174     return __wcscat_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t));
 175   return __wcscat_alias (__dest, __src);
 176 }
 177
 178
 179 extern wchar_t *__wcsncat_chk (wchar_t *__restrict __dest,
 180                                __const wchar_t *__restrict __src,
 181                                size_t __n, size_t __destlen) __THROW;
 182 extern wchar_t *__REDIRECT (__wcsncat_alias,
 183                             (wchar_t *__restrict __dest,
 184                              __const wchar_t *__restrict __src, size_t __n),
 185                             wcsncat) __THROW;
 186
 187 extern __always_inline wchar_t *
 188 wcsncat (wchar_t *__dest, __const wchar_t *__src, size_t __n)
 189 {
 190   if (__bos (__dest) != (size_t) -1)
 191     return __wcsncat_chk (__dest, __src, __n,
 192                           __bos (__dest) / sizeof (wchar_t));
 193   return __wcsncat_alias (__dest, __src, __n);
 194 }
 195
 196
 197 extern int __swprintf_chk (wchar_t *__restrict __s, size_t __n,
 198                            int __flag, size_t __s_len,
 199                            __const wchar_t *__restrict __format, ...)
 200      __THROW /* __attribute__ ((__format__ (__wprintf__, 5, 6))) */;
 201
 202 /* XXX We might want to have support in gcc for swprintf.  */
 203 #define swprintf(s, n, format, ...) \
 204   (__bos (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1                        \
 205    ? __swprintf_chk (s, n, __USE_FORTIFY_LEVEL - 1, __bos (s), format,        \
 206                      __VA_ARGS__)                                             \
 207    : swprintf (s, n, format, __VA_ARGS__))
 208
 209
 210 extern int __vswprintf_chk (wchar_t *__restrict __s, size_t __n,
 211                             int __flag, size_t __s_len,
 212                             __const wchar_t *__restrict __format,
 213                             __gnuc_va_list __arg)
 214      __THROW /* __attribute__ ((__format__ (__wprintf__, 5, 0))) */;
 215 extern int __REDIRECT (__vswprintf_alias,
 216                        (wchar_t *__restrict __s, size_t __n,
 217                         __const wchar_t *__restrict __format,
 218                         __gnuc_va_list __arg), vswprintf)
 219      __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
 220
 221
 222 extern __always_inline int
 223 vswprintf (wchar_t *__s, size_t __n, __const wchar_t *__format,
 224            __gnuc_va_list __arg)
 225 {
 226   if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1)
 227     return __vswprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, __bos (__s),
 228                             __format, __arg);
 229   return vswprintf (__s, __n, __format, __arg);
 230 }
 231
 232
 233 #if __USE_FORTIFY_LEVEL > 1
 234
 235 extern int __fwprintf_chk (FILE *__restrict __stream, int __flag,
 236                            __const wchar_t *__restrict __format, ...);
 237 extern int __wprintf_chk (int __flag, __const wchar_t *__restrict __format,
 238                           ...);
 239 extern int __vfwprintf_chk (FILE *__restrict __stream, int __flag,
 240                             __const wchar_t *__restrict __format,
 241                             _G_va_list __ap);
 242 extern int __vwprintf_chk (int __flag, __const wchar_t *__restrict __format,
 243                            _G_va_list __ap);
 244
 245 # define wprintf(...) \
 246   __wprintf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
 247 # define fwprintf(stream, ...) \
 248   __fwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
 249 # define vwprintf(format, ap) \
 250   __vwprintf_chk (__USE_FORTIFY_LEVEL - 1, format, ap)
 251 # define vfwprintf(stream, format, ap) \
 252   __vfwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, format, ap)
 253
 254 #endif
 255
 256 extern wchar_t *__fgetws_chk (wchar_t *__restrict __s, size_t __size, int __n,
 257                               FILE *__restrict __stream) __wur;
 258 extern wchar_t *__REDIRECT (__fgetws_alias,
 259                             (wchar_t *__restrict __s, int __n,
 260                              FILE *__restrict __stream), fgetws) __wur;
 261
 262 extern __always_inline __wur wchar_t *
 263 fgetws (wchar_t *__restrict __s, int __n, FILE *__restrict __stream)
 264 {
 265   if (__bos (__s) != (size_t) -1
 266       && (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s)))
 267     return __fgetws_chk (__s, __bos (__s), __n, __stream);
 268   return __fgetws_alias (__s, __n, __stream);
 269 }
 270
 271 #ifdef __USE_GNU
 272 extern wchar_t *__fgetws_unlocked_chk (wchar_t *__restrict __s, size_t __size,
 273                                        int __n, FILE *__restrict __stream)
 274   __wur;
 275 extern wchar_t *__REDIRECT (__fgetws_unlocked_alias,
 276                             (wchar_t *__restrict __s, int __n,
 277                              FILE *__restrict __stream), fgetws_unlocked)
 278   __wur;
 279
 280 extern __always_inline __wur wchar_t *
 281 fgetws_unlocked (wchar_t *__restrict __s, int __n, FILE *__restrict __stream)
 282 {
 283   if (__bos (__s) != (size_t) -1
 284       && (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s)))
 285     return __fgetws_unlocked_chk (__s, __bos (__s), __n, __stream);
 286   return __fgetws_unlocked_alias (__s, __n, __stream);
 287 }
 288 #endif