include/wx/wxchar.h

   1 /*
   2  * Name:        wx/wxchar.h
   3  * Purpose:     Declarations common to wx char/wchar_t usage (wide chars)
   4  * Author:      Joel Farley, Ove Kåven
   5  * Modified by: Vadim Zeitlin, Robert Roebling, Ron Lee
   6  * Created:     1998/06/12
   7  * RCS-ID:      $Id$
   8  * Copyright:   (c) 1998-2002 wxWidgets dev team
   9  * Licence:     wxWindows licence
  10  */
  11
  12 /* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */
  13
  14 #ifndef _WX_WXCHAR_H_
  15 #define _WX_WXCHAR_H_
  16
  17 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  18     #pragma interface "wxchar.h"
  19 #endif
  20
  21 #include "wx/defs.h"        /* for wxUSE_UNICODE */
  22
  23 /* check whether we have wchar_t and which size it is if we do */
  24 #if !defined(wxUSE_WCHAR_T)
  25     #if defined(__UNIX__)
  26         #if defined(HAVE_WCSTR_H) || defined(HAVE_WCHAR_H) || defined(__FreeBSD__) || defined(__DARWIN__)
  27             #define wxUSE_WCHAR_T 1
  28         #else
  29             #define wxUSE_WCHAR_T 0
  30         #endif
  31     #elif defined(__GNUWIN32__) && !defined(__MINGW32__)
  32         #define wxUSE_WCHAR_T 0
  33     #elif defined(__WATCOMC__)
  34         #define wxUSE_WCHAR_T 0
  35     #elif defined(__VISAGECPP__) && (__IBMCPP__ < 400)
  36         #define wxUSE_WCHAR_T 0
  37     #else
  38         /* add additional compiler checks if this fails */
  39         #define wxUSE_WCHAR_T 1
  40     #endif
  41 #endif /* !defined(wxUSE_WCHAR_T) */
  42
  43 /* Unicode support requires wchar_t */
  44 #if wxUSE_UNICODE && !wxUSE_WCHAR_T
  45     #error "wchar_t must be available in Unicode build"
  46 #endif /* Unicode */
  47
  48 /*
  49     Standard headers we need here.
  50
  51     NB: don't include any wxWidgets headers here because almost of them include
  52         this one!
  53  */
  54
  55 /* Required for wxPrintf() etc */
  56 #include <stdarg.h>
  57
  58 /* Almost all compiler have strdup(), but not quite all: CodeWarrior under Mac */
  59 /* and VC++ for Windows CE don't provide it */
  60 #if !(defined(__MWERKS__) && defined(__WXMAC__)) && !defined(__WXWINCE__)
  61     /* use #define, not inline wrapper, as it is tested with #ifndef below */
  62     #define wxStrdupA strdup
  63 #endif
  64
  65 /*
  66    non Unix compilers which do have wchar.h (but not tchar.h which is included
  67    below and which includes wchar.h anyhow).
  68
  69    Actually MinGW has tchar.h, but it does not include wchar.h
  70  */
  71 #if defined(__MWERKS__) || defined(__VISAGECPP__) || defined(__MINGW32__) || defined(__WATCOMC__)
  72     #ifndef HAVE_WCHAR_H
  73         #define HAVE_WCHAR_H
  74     #endif
  75 #endif
  76 #if defined(__MWERKS__) && !defined(__MACH__)
  77     #ifndef HAVE_WCSLEN
  78         #define HAVE_WCSLEN
  79     #endif
  80 #endif
  81
  82 #if wxUSE_WCHAR_T
  83     #ifdef HAVE_WCHAR_H
  84         /* the current (as of Nov 2002) version of cygwin has a bug in its */
  85         /* wchar.h -- there is no extern "C" around the declarations in it and */
  86         /* this results in linking errors later; also, at least on some */
  87         /* Cygwin versions, wchar.h requires sys/types.h */
  88         #ifdef __CYGWIN__
  89             #include <sys/types.h>
  90             extern "C" {
  91         #endif /* Cygwin */
  92                 #include <wchar.h>
  93         #ifdef __CYGWIN__
  94             }
  95         #endif /* Cygwin */
  96     #elif defined(HAVE_WCSTR_H)
  97         /* old compilers have relevant declarations here */
  98         #include <wcstr.h>
  99     #elif defined(__FreeBSD__) || defined(__DARWIN__) || defined(__EMX__)
 100         /* include stdlib.h for wchar_t */
 101         #include <stdlib.h>
 102     #endif /* HAVE_WCHAR_H */
 103 #endif /* wxUSE_WCHAR_T */
 104
 105 /* ---------------------------------------------------------------------------- */
 106 /* define wxHAVE_TCHAR_SUPPORT for the compilers which support the TCHAR type */
 107 /* mapped to either char or wchar_t depending on the ASCII/Unicode mode and have */
 108 /* the function mapping _tfoo() -> foo() or wfoo() */
 109 /* ---------------------------------------------------------------------------- */
 110
 111 /* VC++ and BC++ starting with 5.2 have TCHAR support */
 112 #ifdef __VISUALC__
 113     #define wxHAVE_TCHAR_SUPPORT
 114 #elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x520)
 115     #define wxHAVE_TCHAR_SUPPORT
 116     #include <ctype.h>
 117 #elif defined(__WATCOMC__)
 118     #define wxHAVE_TCHAR_SUPPORT
 119 #elif defined(__DMC__)
 120     #define wxHAVE_TCHAR_SUPPORT
 121 #elif defined(__MINGW32__) && wxCHECK_W32API_VERSION( 1, 0 )
 122     #define wxHAVE_TCHAR_SUPPORT
 123     #include <stddef.h>
 124     #include <string.h>
 125     #include <ctype.h>
 126 #elif 0 && defined(__VISAGECPP__) && (__IBMCPP__ >= 400)
 127     /* VZ: the old VisualAge definitions were completely wrong and had no */
 128     /*     chance at all to work in Unicode build anyhow so let's pretend that */
 129     /*     VisualAge does _not_ support TCHAR for the moment (as indicated by */
 130     /*     "0 &&" above) until someone really has time to delve into Unicode */
 131     /*     issues under OS/2 */
 132
 133     /* VisualAge 4.0+ supports TCHAR */
 134     #define wxHAVE_TCHAR_SUPPORT
 135 #endif /* compilers with (good) TCHAR support */
 136
 137 #ifdef __MWERKS__
 138     #define HAVE_WPRINTF
 139 #endif
 140
 141 #ifdef wxHAVE_TCHAR_SUPPORT
 142     /* get TCHAR definition if we've got it */
 143     #include <tchar.h>
 144
 145     /* we surely do have wchar_t if we have TCHAR */
 146     #ifndef wxUSE_WCHAR_T
 147         #define wxUSE_WCHAR_T 1
 148     #endif /* !defined(wxUSE_WCHAR_T) */
 149
 150     /* and we also do have wcslen() */
 151     #ifndef HAVE_WCSLEN
 152         #define HAVE_WCSLEN
 153     #endif
 154 #endif /* wxHAVE_TCHAR_SUPPORT */
 155
 156 /* ---------------------------------------------------------------------------- */
 157 /* define wxChar type */
 158 /* ---------------------------------------------------------------------------- */
 159
 160 /* TODO: define wxCharInt to be equal to either int or wint_t? */
 161
 162 #if !wxUSE_UNICODE
 163     typedef char wxChar;
 164     typedef signed char wxSChar;
 165     typedef unsigned char wxUChar;
 166 #else /* Unicode */
 167     /* VZ: note that VC++ defines _T[SU]CHAR simply as wchar_t and not as */
 168     /*     signed/unsigned version of it which (a) makes sense to me (unlike */
 169     /*     char wchar_t is always unsigned) and (b) was how the previous */
 170     /*     definitions worked so keep it like this */
 171
 172     /* GNU libc has __WCHAR_TYPE__ which requires special treatment, see */
 173     /* comment below */
 174     #if !defined(__WCHAR_TYPE__) || \
 175         (!defined(__GNUC__) || wxCHECK_GCC_VERSION(2, 96))
 176         /* standard case */
 177         typedef wchar_t wxChar;
 178         typedef wchar_t wxSChar;
 179         typedef wchar_t wxUChar;
 180     #else /* __WCHAR_TYPE__ and gcc < 2.96 */
 181         /* VS: wxWidgets used to define wxChar as __WCHAR_TYPE__ here. However, */
 182         /*     this doesn't work with new GCC 3.x compilers because wchar_t is */
 183         /*     C++'s builtin type in the new standard. OTOH, old compilers (GCC */
 184         /*     2.x) won't accept new definition of wx{S,U}Char, therefore we */
 185         /*     have to define wxChar conditionally depending on detected */
 186         /*     compiler & compiler version. */
 187         /*     with old definition of wxChar. */
 188         typedef __WCHAR_TYPE__ wxChar;
 189         typedef __WCHAR_TYPE__ wxSChar;
 190         typedef __WCHAR_TYPE__ wxUChar;
 191     #endif /* __WCHAR_TYPE__ */
 192 #endif /* ASCII/Unicode */
 193
 194 /* ---------------------------------------------------------------------------- */
 195 /* define _T() and related macros */
 196 /* ---------------------------------------------------------------------------- */
 197
 198 /* BSD systems define _T() to be something different in ctype.h, override it */
 199 #if defined(__FreeBSD__) || defined(__DARWIN__)
 200     #include <ctype.h>
 201     #undef _T
 202 #endif
 203
 204 /* could already be defined by tchar.h (it's quasi standard) */
 205 #ifndef _T
 206     #if !wxUSE_UNICODE
 207         #define _T(x) x
 208     #else /* Unicode */
 209         #define _T(x) L ## x
 210     #endif /* ASCII/Unicode */
 211 #endif /* !defined(_T) */
 212
 213 /* although global macros with such names are normally bad, we want to have */
 214 /* another name for _T() which should be used to avoid confusion between _T() */
 215 /* and _() in wxWidgets sources */
 216 #define wxT(x)       _T(x)
 217
 218 /* Unicode-friendly __FILE__, __DATE__ and __TIME__ analogs */
 219 #ifndef __TFILE__
 220     #define __XFILE__(x) wxT(x)
 221     #define __TFILE__ __XFILE__(__FILE__)
 222 #endif
 223
 224 #ifndef __TDATE__
 225     #define __XDATE__(x) wxT(x)
 226     #define __TDATE__ __XDATE__(__DATE__)
 227 #endif
 228
 229 #ifndef __TTIME__
 230     #define __XTIME__(x) wxT(x)
 231     #define __TTIME__ __XTIME__(__TIME__)
 232 #endif
 233
 234 /*
 235     define wxFoo() function for each standard foo() function whose signature
 236     (exceptionally including the return type) includes any mention of char:
 237     wxFoo() is going to be a Unicode-friendly version of foo(), i.e. will have
 238     the same signature but with char replaced by wxChar which allows us to use
 239     it in Unicode build as well
 240  */
 241
 242 #ifdef wxHAVE_TCHAR_SUPPORT
 243     #include <ctype.h>
 244
 245     /* ctype.h functions */
 246     #define  wxIsalnum   _istalnum
 247     #define  wxIsalpha   _istalpha
 248     #define  wxIscntrl   _istcntrl
 249     #define  wxIsdigit   _istdigit
 250     #define  wxIsgraph   _istgraph
 251     #define  wxIslower   _istlower
 252     #define  wxIsprint   _istprint
 253     #define  wxIspunct   _istpunct
 254     #define  wxIsspace   _istspace
 255     #define  wxIsupper   _istupper
 256     #define  wxIsxdigit  _istxdigit
 257
 258     /*
 259        There is a bug in VC6 C RTL: toxxx() functions dosn't do anything with
 260        signed chars < 0, so "fix" it here.
 261      */
 262     #define  wxTolower(c) _totlower((wxUChar)(c))
 263     #define  wxToupper(c) _totupper((wxUChar)(c))
 264
 265     /* locale.h functons */
 266     #define  wxSetlocale _tsetlocale
 267
 268     /* string.h functions */
 269     #define  wxStrcat    _tcscat
 270     #define  wxStrchr    _tcschr
 271     #define  wxStrcmp    _tcscmp
 272     #define  wxStrcoll   _tcscoll
 273     #define  wxStrcpy    _tcscpy
 274     #define  wxStrcspn   _tcscspn
 275     #define  wxStrdupW   _wcsdup        /* notice the 'W'! */
 276     #define  wxStrftime  _tcsftime
 277     #define  wxStricmp   _tcsicmp
 278     #define  wxStrnicmp  _tcsnicmp
 279     #define  wxStrlen_   _tcslen        /* used in wxStrlen inline function */
 280     #define  wxStrncat   _tcsncat
 281     #define  wxStrncmp   _tcsncmp
 282     #define  wxStrncpy   _tcsncpy
 283     #define  wxStrpbrk   _tcspbrk
 284     #define  wxStrrchr   _tcsrchr
 285     #define  wxStrspn    _tcsspn
 286     #define  wxStrstr    _tcsstr
 287     #define  wxStrtod    _tcstod
 288     #define  wxStrtol    _tcstol
 289     #define  wxStrtoul   _tcstoul
 290     #define  wxStrxfrm   _tcsxfrm
 291
 292     /* stdio.h functions */
 293     #define  wxFgetc     _fgettc
 294     #define  wxFgetchar  _fgettchar
 295     #define  wxFgets     _fgetts
 296     #define  wxFopen     _tfopen
 297     #define  wxFputc     _fputtc
 298     #define  wxFputchar  _fputtchar
 299     #define  wxFprintf   _ftprintf
 300     #define  wxFputs     _fputts
 301     #define  wxFreopen   _tfreopen
 302     #define  wxFscanf    _ftscanf
 303     #define  wxGetc      _gettc
 304     #define  wxGetchar   _gettchar
 305     #define  wxGets      _getts
 306     #define  wxPerror    _tperror
 307     #define  wxPrintf    _tprintf
 308     #define  wxPutc      _puttc
 309     #define  wxPutchar   _puttchar
 310     #define  wxPuts      _putts
 311     #define  wxScanf     _tscanf
 312     #if defined(__DMC__)
 313         #if wxUSE_UNICODE
 314             /* Digital Mars adds count to _stprintf (C99) so prototype conversion see wxchar.cpp */
 315             int wxSprintf (wchar_t * __RESTRICT s, const wchar_t * __RESTRICT format, ... ) ;
 316         #else
 317             /* and there is a bug in D Mars tchar.h prior to 8.39.4n, so define as sprintf */
 318             #define wxSprintf sprintf
 319         #endif
 320     #else
 321         #define  wxSprintf   _stprintf
 322     #endif
 323
 324     #define  wxSscanf    _stscanf
 325     #define  wxTmpnam    _ttmpnam
 326     #define  wxUngetc    _tungetc
 327     #define  wxVfprintf  _vftprintf
 328     #define  wxVprintf   _vtprintf
 329     #define  wxVsscanf   _vstscanf
 330     #define  wxVsprintf  _vstprintf
 331
 332     /* special case: not all TCHAR-aware compilers have those */
 333     #if defined(__VISUALC__) || \
 334             (defined(__BORLANDC__) && __BORLANDC__ >= 0x540)
 335         #define wxVsnprintf_    _vsntprintf
 336         #define wxSnprintf_     _sntprintf
 337     #endif
 338
 339     /* special case: these functions are missing under Win9x with Unicows so we */
 340     /* have to implement them ourselves */
 341     #if wxUSE_UNICODE_MSLU
 342         #define  wxRemove    wxMSLU__tremove
 343         #define  wxRename    wxMSLU__trename
 344     #else
 345         #ifdef __WXWINCE__
 346             #define  wxRemove    DeleteFile
 347         #else
 348             #define  wxRemove    _tremove
 349             #define  wxRename    _trename
 350         #endif
 351     #endif
 352
 353     /* stdlib.h functions */
 354     #define  wxAtoi      _ttoi
 355     #define  wxAtol      _ttol
 356     /* #define  wxAtof   _tttof -- notice that there is no such thing (why?) */
 357     #define  wxGetenv    _tgetenv
 358     #define  wxSystem    _tsystem
 359
 360     /* time.h functions */
 361     #define  wxAsctime   _tasctime
 362     #define  wxCtime     _tctime
 363 #else /* !TCHAR-aware compilers */
 364
 365     /* No UNICODE in the c library except wchar_t typedef on mac OSX 10.2 and less - roll our own */
 366     #if wxUSE_UNICODE && __DARWIN__ && ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 ) && !defined(__MWERKS__)
 367
 368         /* we need everything! */
 369         #define wxNEED_WX_STRING_H
 370         #define wxNEED_WX_CTYPE_H
 371
 372         #define  wxFgetchar(c)  wxFgetc(c, stdin)
 373         #define  wxFputc     wxPutc
 374         #define  wxFputchar(c)  wxPutc(c, stdout)
 375         #define  wxGetc      wxFgetc
 376         #define  wxGetchar(c)   wxFgetc(c, stdin)
 377
 378         #include <stdio.h>
 379
 380         #define wxNEED_FGETC
 381         #define wxNEED_FGETS
 382         #define wxNEED_GETS
 383         #define wxNEED_UNGETC
 384
 385         #define wxNEED_FPUTS
 386         #define wxNEED_PUTC
 387
 388         int wxFputs(const wxChar *ch, FILE *stream);
 389         int wxPutc(wxChar ch, FILE *stream);
 390
 391         WXDLLIMPEXP_BASE size_t   wxStrlen_(const wxChar *s);
 392
 393         #define wxPutchar(wch) wxPutc(wch, stdout)
 394         #define wxPuts(ws) wxFputs(ws, stdout)
 395
 396         #define wxNEED_PRINTF_CONVERSION
 397         #define wxNEED_WX_STDIO_H
 398         #define wxNEED_WX_STDLIB_H
 399         #define wxNEED_WX_TIME_H
 400
 401         /* even though they are defined and "implemented", they are bad and just
 402            stubs so we need our own */
 403         #define mbstowcs wxInternalMbstowcs
 404         #define wcstombs wxInternalWcstombs
 405
 406         WXDLLIMPEXP_BASE size_t wxInternalMbstowcs (wchar_t *, const char *, size_t);
 407         WXDLLIMPEXP_BASE size_t wxInternalWcstombs (char *, const wchar_t *, size_t);
 408
 409     #elif wxUSE_UNICODE
 410         #include <wctype.h>
 411
 412         /* this is probably glibc-specific */
 413         #if defined(__WCHAR_TYPE__) && !defined(__MWERKS__)
 414             /* ctype.h functions (wctype.h) */
 415             #define  wxIsalnum   iswalnum
 416             #define  wxIsalpha   iswalpha
 417             #define  wxIscntrl   iswcntrl
 418             #define  wxIsdigit   iswdigit
 419             #define  wxIsgraph   iswgraph
 420             #define  wxIslower   iswlower
 421             #define  wxIsprint   iswprint
 422             #define  wxIspunct   iswpunct
 423             #define  wxIsspace   iswspace
 424             #define  wxIsupper   iswupper
 425             #define  wxIsxdigit  iswxdigit
 426
 427             #if defined(__GLIBC__) && (__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)
 428                 /* /usr/include/wctype.h incorrectly declares translations */
 429                 /* tables which provokes tons of compile-time warnings -- try */
 430                 /* to correct this */
 431                 #define  wxTolower(wc)   towctrans((wc), (wctrans_t)__ctype_tolower)
 432                 #define  wxToupper(wc)   towctrans((wc), (wctrans_t)__ctype_toupper)
 433             #else /* !glibc 2.0 */
 434                 #define  wxTolower   towlower
 435                 #define  wxToupper   towupper
 436             #endif /* gcc/!gcc */
 437
 438             /* string.h functions (wchar.h) */
 439             #define  wxStrcat    wcscat
 440             #define  wxStrchr    wcschr
 441             #define  wxStrcmp    wcscmp
 442             #define  wxStrcoll   wcscoll
 443             #define  wxStrcpy    wcscpy
 444             #define  wxStrcspn   wcscspn
 445             #define  wxStrlen_   wxWcslen /* wxStrlen_() is used in wxStrlen() */
 446             #define  wxStrncat   wcsncat
 447             #define  wxStrncmp   wcsncmp
 448             #define  wxStrncpy   wcsncpy
 449             #define  wxStrpbrk   wcspbrk
 450             #define  wxStrrchr   wcsrchr
 451             #define  wxStrspn    wcsspn
 452             #define  wxStrstr    wcsstr
 453             #define  wxStrtod    wcstod
 454             #define  wxStrtol    wcstol
 455             #define  wxStrtoul   wcstoul
 456             #define  wxStrxfrm   wcsxfrm
 457
 458             #define  wxFgetc     fgetwc
 459             #define  wxFgetchar  fgetwchar
 460             #define  wxFgets     fgetws
 461             #define  wxFputc     fputwc
 462             #define  wxFputchar  fputwchar
 463             #define  wxGetc      getwc
 464             #define  wxGetchar   getwchar
 465             #define  wxGets      getws
 466             #define  wxUngetc    ungetwc
 467
 468             #ifdef HAVE_FPUTWS
 469                 #define wxFputs     fputws
 470             #else
 471                 #define wxNEED_FPUTS
 472                 #include <stdio.h>
 473                 int wxFputs(const wxChar *ch, FILE *stream);
 474             #endif
 475
 476             #ifdef HAVE_WPUTC
 477                 #define wxPutc      wputc
 478             #else
 479                 #define wxNEED_PUTC
 480                 #include <stdio.h>
 481                 int wxPutc(wxChar ch, FILE *stream);
 482             #endif
 483
 484             #ifdef HAVE_WPUTCHAR
 485                 #define wxPutchar   wputchar
 486             #else
 487                 #define wxPutchar(wch) wxPutc(wch, stdout)
 488             #endif
 489
 490             #ifdef HAVE_PUTWS
 491                 #define wxPuts      putws
 492             #else
 493                 #define wxPuts(ws) wxFputs(ws, stdout)
 494             #endif
 495
 496             /* we need %s to %ls conversion for printf and scanf etc */
 497             #define wxNEED_PRINTF_CONVERSION
 498
 499             /* glibc doesn't have wide char equivalents of the other stuff so */
 500             /* use our own versions */
 501             #define wxNEED_WX_STDIO_H
 502             #define wxNEED_WX_STDLIB_H
 503             #define wxNEED_WX_TIME_H
 504         #elif defined(__MWERKS__) && ( defined(__MSL__) || defined(__MACH__) )
 505             /* ctype.h functions (wctype.h) */
 506             #define  wxIsalnum   iswalnum
 507             #define  wxIsalpha   iswalpha
 508             #define  wxIscntrl   iswcntrl
 509             #define  wxIsdigit   iswdigit
 510             #define  wxIsgraph   iswgraph
 511             #define  wxIslower   iswlower
 512             #define  wxIsprint   iswprint
 513             #define  wxIspunct   iswpunct
 514             #define  wxIsspace   iswspace
 515             #define  wxIsupper   iswupper
 516             #define  wxIsxdigit  iswxdigit
 517             #define  wxTolower   towlower
 518             #define  wxToupper   towupper
 519
 520             /* string.h functions (wchar.h) */
 521             #define  wxStrcat    wcscat
 522             #define  wxStrchr    wcschr
 523             #define  wxStrcmp    wcscmp
 524             #define  wxStrcoll   wcscoll
 525             #define  wxStrcpy    wcscpy
 526             #define  wxStrcspn   wcscspn
 527             #define  wxStrlen_   wxWcslen /* wxStrlen_() is used in wxStrlen() */
 528             #define  wxStrncat   wcsncat
 529             #define  wxStrncmp   wcsncmp
 530             #define  wxStrncpy   wcsncpy
 531             #define  wxStrpbrk   wcspbrk
 532             #define  wxStrrchr   wcsrchr
 533             #define  wxStrspn    wcsspn
 534             #define  wxStrstr    wcsstr
 535             #define  wxStrtod    wcstod
 536             #define  wxStrtol    wcstol
 537             #define  wxStrtoul   wcstoul
 538             #define  wxStrxfrm   wcsxfrm
 539
 540             #define  wxFgetc     fgetwc
 541             #define  wxFgetchar  fgetwchar
 542             #define  wxFgets     fgetws
 543             #define  wxFputc     fputwc
 544             #define  wxFputchar  fputwchar
 545             #define  wxGetc      getwc
 546             #define  wxGetchar   getwchar
 547             #define  wxGets      getws
 548             #define  wxUngetc    ungetwc
 549
 550             #define wxNEED_PRINTF_CONVERSION
 551
 552             #define  wxPutc      putwc
 553             #define  wxPutchar   putwchar
 554             #define  wxFputs     fputws
 555
 556             /* stdio.h functions */
 557
 558             #define wxNEED_WX_STDIO_H
 559
 560             /* stdlib.h functions */
 561             #ifdef __MACH__
 562             #define wxNEED_WX_STDLIB_H
 563             #else
 564             #define  wxAtof      watof
 565             #define  wxAtoi      watoi
 566             #define  wxAtol      watol
 567             #define  wxGetenv(a)    ((wxChar*)NULL)
 568             #define  wxSystem(a)    ((int)NULL)
 569             #endif
 570             /* time.h functions */
 571             #define  wxAsctime   wasciitime
 572             #define  wxCtime     wctime
 573             /* #define  wxStrftime  wcsftime */
 574
 575             #define wxNEED_WX_TIME_H
 576         #else /* !metrowerks for apple */
 577             #error  "Please define wide character functions for your environment"
 578         #endif
 579     #else /* ASCII */
 580         #include <ctype.h>
 581         #include <string.h>
 582
 583         /* ctype.h functions */
 584         #define  wxIsalnum   isalnum
 585         #define  wxIsalpha   isalpha
 586         #define  wxIscntrl   iscntrl
 587         #define  wxIsdigit   isdigit
 588         #define  wxIsgraph   isgraph
 589         #define  wxIslower   islower
 590         #define  wxIsprint   isprint
 591         #define  wxIspunct   ispunct
 592         #define  wxIsspace   isspace
 593         #define  wxIsupper   isupper
 594         #define  wxIsxdigit  isxdigit
 595         #define  wxTolower   tolower
 596         #define  wxToupper   toupper
 597
 598          /* locale.h functons */
 599         #define  wxSetlocale setlocale
 600
 601          /* string.h functions */
 602         #define  wxStrcat    strcat
 603         #define  wxStrchr    strchr
 604         #define  wxStrcmp    strcmp
 605         #define  wxStrcoll   strcoll
 606         #define  wxStrcpy    strcpy
 607         #define  wxStrcspn   strcspn
 608
 609         /* wxStricmp and wxStrnicmp are defined below */
 610         #define  wxStrlen_   strlen /* used in wxStrlen inline function */
 611         #define  wxStrncat   strncat
 612         #define  wxStrncmp   strncmp
 613         #define  wxStrncpy   strncpy
 614         #define  wxStrpbrk   strpbrk
 615         #define  wxStrrchr   strrchr
 616         #define  wxStrspn    strspn
 617         #define  wxStrstr    strstr
 618         #define  wxStrtod    strtod
 619         #ifdef HAVE_STRTOK_R
 620             #define  wxStrtok(str, sep, last)    strtok_r(str, sep, last)
 621         #endif
 622         #define  wxStrtol    strtol
 623         #define  wxStrtoul   strtoul
 624         #define  wxStrxfrm   strxfrm
 625
 626         /* stdio.h functions */
 627         #define  wxFopen     fopen
 628         #define  wxFreopen   freopen
 629         #define  wxRemove    remove
 630         #define  wxRename    rename
 631
 632         #define  wxPerror    perror
 633         #define  wxTmpnam    tmpnam
 634
 635         #define  wxFgetc     fgetc
 636         #define  wxFgetchar  fgetchar
 637         #define  wxFgets     fgets
 638         #define  wxFputc     fputc
 639         #define  wxFputs     fputs
 640         #define  wxFputchar  fputchar
 641         #define  wxFprintf   fprintf
 642         #define  wxFscanf    fscanf
 643         #define  wxGetc      getc
 644         #define  wxGetchar   getchar
 645         #define  wxGets      gets
 646         #define  wxPrintf    printf
 647         #define  wxPutc      putc
 648         #define  wxPutchar   putchar
 649         #define  wxPuts      puts
 650         #define  wxScanf     scanf
 651         #define  wxSprintf   sprintf
 652         #define  wxSscanf    sscanf
 653         #define  wxUngetc    ungetc
 654         #define  wxVfprintf  vfprintf
 655         #define  wxVprintf   vprintf
 656         #define  wxVsscanf   vsscanf
 657         #define  wxVsprintf  vsprintf
 658
 659         /* stdlib.h functions */
 660         #define  wxAtof      atof
 661         #define  wxAtoi      atoi
 662         #define  wxAtol      atol
 663         #define  wxGetenv    getenv
 664         #define  wxSystem    system
 665
 666         /* time.h functions */
 667         #define  wxAsctime   asctime
 668         #define  wxCtime     ctime
 669         #define  wxStrftime  strftime
 670     #endif /* Unicode/ASCII */
 671 #endif /* TCHAR-aware compilers/the others */
 672
 673 /*
 674     various special cases
 675  */
 676
 677 /* define wxStricmp and wxStrnicmp for various compilers */
 678
 679 /* note that in Unicode mode we definitely are going to need our own version */
 680 #if !defined(wxStricmp) && !wxUSE_UNICODE
 681     #if defined(__BORLANDC__) || defined(__WATCOMC__) || \
 682             defined(__SALFORDC__) || defined(__VISAGECPP__) || \
 683             defined(__EMX__) || defined(__DJGPP__)
 684         #define wxStricmp stricmp
 685         #define wxStrnicmp strnicmp
 686     #elif defined(__SYMANTEC__) || defined(__VISUALC__) || \
 687             (defined(__MWERKS__) && defined(__INTEL__))
 688         #define wxStricmp _stricmp
 689         #define wxStrnicmp _strnicmp
 690     #elif defined(__UNIX__) || defined(__GNUWIN32__)
 691         #define wxStricmp strcasecmp
 692         #define wxStrnicmp strncasecmp
 693     /* #else -- use wxWidgets implementation */
 694     #endif
 695 #endif /* !defined(wxStricmp) */
 696
 697 /* define wxWcslen() which should be always available if wxUSE_WCHAR_T == 1 (as */
 698 /* it's used in wx/buffer.h -- and also might be used just below by wxStrlen() */
 699 /* when wxStrlen_() is #define'd as wxWcslen so do it before defining wxStrlen) */
 700 #if wxUSE_WCHAR_T
 701     #ifdef HAVE_WCSLEN
 702         #define wxWcslen wcslen
 703     #else
 704     #if defined( __WXMAC_XCODE__ ) && !defined( __cplusplus )
 705     /* xcode native targets are giving multiply defined symbols on regex */
 706         static
 707     #endif
 708         inline size_t wxWcslen(const wchar_t *s)
 709         {
 710             size_t n = 0;
 711             while ( *s++ )
 712                 n++;
 713
 714             return n;
 715         }
 716     #endif
 717 #endif /* wxUSE_WCHAR_T */
 718
 719 #ifdef __cplusplus
 720 /* checks whether the passed in pointer is NULL and if the string is empty */
 721 inline bool wxIsEmpty(const wxChar *p) { return !p || !*p; }
 722
 723 /* safe version of strlen() (returns 0 if passed NULL pointer) */
 724 inline size_t wxStrlen(const wxChar *psz) { return psz ? wxStrlen_(psz) : 0; }
 725 #endif
 726
 727 /*
 728     each of strdup() and wcsdup() may or may not be available but we need both
 729     of them anyhow for wx/buffer.h so we define the missing one(s) in
 730     wxchar.cpp and so we should always have both wxStrdupA and wxStrdupW
 731     defined -- if this is somehow not the case in some situations, please
 732     correct that and not the lines here
 733  */
 734 #if wxUSE_UNICODE
 735     #define wxStrdup wxStrdupW
 736 #else
 737     #define wxStrdup wxStrdupA
 738 #endif
 739
 740 #ifdef __cplusplus
 741 WXDLLIMPEXP_BASE bool wxOKlibc(); /* for internal use */
 742 #endif
 743
 744 /* printf() family saga */
 745
 746 /*
 747    For some systems vsnprintf() exists in the system libraries but not in the
 748    headers, so we need to declare it ourselves to be able to use it.
 749  */
 750 #if defined(HAVE_VSNPRINTF) && !defined(HAVE_VSNPRINTF_DECL)
 751     extern "C"
 752     int vsnprintf(char *str, size_t size, const char *format, va_list ap);
 753 #endif /* !HAVE_VSNPRINTF_DECL */
 754
 755 /*
 756    First of all, we always want to define safe snprintf() function to be used
 757    instead of sprintf(). Some compilers already have it (or rather vsnprintf()
 758    which we really need...), otherwise we implement it using our own printf()
 759    code.
 760
 761    We define function with a trailing underscore here because the real one is a
 762    wrapper around it as explained below
 763  */
 764 #ifndef wxVsnprintf_
 765     #if wxUSE_UNICODE
 766         #if defined(__MWERKS__)
 767             #define HAVE_WCSRTOMBS 1
 768             #define HAVE_VSWPRINTF 1
 769         #endif
 770         #if defined(__WATCOMC__)
 771             #define wxVsnprintf_    _vsnwprintf
 772             #define wxSnprintf_     _snwprintf
 773         #endif
 774         #if defined(HAVE__VSNWPRINTF)
 775             #define wxVsnprintf_    _vsnwprintf
 776         /* MinGW?MSVCRT has the wrong vswprintf */
 777         #elif defined(HAVE_VSWPRINTF) && !defined(__MINGW32__)
 778             #define wxVsnprintf_    vswprintf
 779         #endif
 780     #else /* ASCII */
 781         /* all versions of CodeWarrior supported by wxWidgets apparently have */
 782         /* vsnprintf() */
 783         #if defined(HAVE_VSNPRINTF) || defined(__MWERKS__) || defined(__WATCOMC__)
 784             /* assume we have snprintf() too if we have vsnprintf() */
 785             #define wxVsnprintf_    vsnprintf
 786             #define wxSnprintf_     snprintf
 787         #endif
 788     #endif
 789 #endif /* wxVsnprintf_ not defined yet */
 790
 791 #ifndef wxSnprintf_
 792     /* no [v]snprintf(), cook our own */
 793     WXDLLIMPEXP_BASE int wxSnprintf_(wxChar *buf, size_t len, const wxChar *format,
 794                                 ...) ATTRIBUTE_PRINTF_3;
 795 #endif
 796 #ifndef wxVsnprintf_
 797     WXDLLIMPEXP_BASE int wxVsnprintf_(wxChar *buf, size_t len, const wxChar *format,
 798                                  va_list argptr);
 799 #endif
 800
 801 /*
 802    In Unicode mode we need to have all standard functions such as wprintf() and
 803    so on but not all systems have them so use our own implementations in this
 804    case.
 805  */
 806 #if wxUSE_UNICODE && !defined(wxHAVE_TCHAR_SUPPORT) && !defined(HAVE_WPRINTF)
 807     #define wxNEED_WPRINTF
 808 #endif
 809
 810 /*
 811    More Unicode complications: although both ANSI C and C++ define a number of
 812    wide character functions such as wprintf(), not all environments have them.
 813    Worse, those which do have different behaviours: under Windows, %s format
 814    specifier changes its meaning in Unicode build and expects a Unicode string
 815    while under Unix/POSIX it still means an ASCII string even for wprintf() and
 816    %ls has to be used for wide strings.
 817
 818    We choose to always emulate Windows behaviour as more useful for us so even
 819    if we have wprintf() we still must wrap it in a non trivial wxPrintf().
 820
 821 */
 822
 823 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
 824     /*
 825         we need to implement all wide character printf and scanf functions
 826         either because we don't have them at all or because they don't have the
 827         semantics we need
 828      */
 829
 830     #include <stdio.h>  /* for FILE */
 831
 832     int wxScanf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_1;
 833     int wxSscanf( const wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_2;
 834     int wxFscanf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_2;
 835     int wxVsscanf( const wxChar *str, const wxChar *format, va_list ap );
 836     int wxPrintf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_1;
 837     int wxSprintf( wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_2;
 838     int wxFprintf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_2;
 839     int wxVfprintf( FILE *stream, const wxChar *format, va_list ap );
 840     int wxVprintf( const wxChar *format, va_list ap );
 841     int wxVsprintf( wxChar *str, const wxChar *format, va_list ap );
 842 #endif /* wxNEED_PRINTF_CONVERSION */
 843
 844 /* these 2 can be simply mapped to the versions with underscore at the end */
 845 /* if we don't have to do the conversion */
 846 /*
 847    However, if we don't have any vswprintf() at all we don't need to redefine
 848    anything as our own wxVsnprintf_() already behaves as needed.
 849 */
 850 #if defined(wxNEED_PRINTF_CONVERSION) && defined(wxVsnprintf_)
 851     int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3;
 852     int wxVsnprintf( wxChar *str, size_t size, const wxChar *format, va_list ap );
 853 #else
 854     #define wxSnprintf wxSnprintf_
 855     #define wxVsnprintf wxVsnprintf_
 856 #endif
 857
 858 /*
 859     various functions which might not be available in libc and for which we
 860     provide our own replacements in wxchar.cpp
 861  */
 862
 863 /* ctype.h functions */
 864
 865 /* RN: Used only under OSX <= 10.2 currently */
 866 #ifdef wxNEED_WX_CTYPE_H
 867     WXDLLIMPEXP_BASE int wxIsalnum(wxChar ch);
 868     WXDLLIMPEXP_BASE int wxIsalpha(wxChar ch);
 869     WXDLLIMPEXP_BASE int wxIscntrl(wxChar ch);
 870     WXDLLIMPEXP_BASE int wxIsdigit(wxChar ch);
 871     WXDLLIMPEXP_BASE int wxIsgraph(wxChar ch);
 872     WXDLLIMPEXP_BASE int wxIslower(wxChar ch);
 873     WXDLLIMPEXP_BASE int wxIsprint(wxChar ch);
 874     WXDLLIMPEXP_BASE int wxIspunct(wxChar ch);
 875     WXDLLIMPEXP_BASE int wxIsspace(wxChar ch);
 876     WXDLLIMPEXP_BASE int wxIsupper(wxChar ch);
 877     WXDLLIMPEXP_BASE int wxIsxdigit(wxChar ch);
 878     WXDLLIMPEXP_BASE int wxTolower(wxChar ch);
 879     WXDLLIMPEXP_BASE int wxToupper(wxChar ch);
 880 #endif /* wxNEED_WX_CTYPE_H */
 881
 882 /* under VC++ 6.0 isspace() returns 1 for 8 bit chars which completely breaks */
 883 /* the file parsing -- this may be true for 5.0 as well, update #ifdef then */
 884 #if defined(__VISUALC__) && (__VISUALC__ >= 1200) && !wxUSE_UNICODE
 885     #undef wxIsspace
 886     #define wxIsspace(c) ((((unsigned)c) < 128) && isspace(c))
 887 #endif /* VC++ */
 888
 889 /*
 890    a few compilers don't have the (non standard but common) isascii function,
 891    define it ourselves for them
 892  */
 893 #ifndef isascii
 894     #if defined(__MWERKS__)
 895         #define wxNEED_ISASCII
 896     #elif defined(_WIN32_WCE)
 897         #if _WIN32_WCE <= 211
 898             #define wxNEED_ISASCII
 899         #endif
 900     #endif
 901 #endif /* isascii */
 902
 903 #ifdef wxNEED_ISASCII
 904     inline int isascii(int c) { return (unsigned)c < 0x80; }
 905 #endif
 906
 907 #ifdef _WIN32_WCE
 908     #if _WIN32_WCE <= 211
 909         #define isspace(c) ((c) == _T(' ') || (c) == _T('\t'))
 910     #endif
 911 #endif /* _WIN32_WCE */
 912
 913 /*
 914    we had goofed and defined wxIsctrl() instead of (correct) wxIscntrl() in the
 915    initial versions of this header -- now it is too late to remove it so
 916    although we fixed the function/macro name above, still provide the
 917    backwards-compatible synonym.
 918  */
 919 #define wxIsctrl wxIscntrl
 920
 921 /* string.h functions */
 922 #ifndef strdup
 923     #if defined(__MWERKS__) && !defined(__MACH__) && (__MSL__ < 0x00008000)
 924         #define wxNEED_STRDUP
 925     #elif defined(__WXWINCE__)
 926         #if _WIN32_WCE <= 211
 927             #define wxNEED_STRDUP
 928         #endif
 929     #endif
 930 #endif /* strdup */
 931
 932 #ifdef wxNEED_STRDUP
 933     WXDLLIMPEXP_BASE char *strdup(const char* s);
 934 #endif
 935
 936 /* RN: Used only under OSX <= 10.2 currently */
 937 #ifdef wxNEED_WX_STRING_H
 938     WXDLLIMPEXP_BASE wxChar * wxStrcat(wxChar *dest, const wxChar *src);
 939     WXDLLIMPEXP_BASE const wxChar * wxStrchr(const wxChar *s, wxChar c);
 940     inline wxChar * wxStrchr(wxChar *s, wxChar c)
 941         { return (wxChar *)wxStrchr((const wxChar *)s, c); }
 942     WXDLLIMPEXP_BASE int      wxStrcmp(const wxChar *s1, const wxChar *s2);
 943     WXDLLIMPEXP_BASE int      wxStrcoll(const wxChar *s1, const wxChar *s2);
 944     WXDLLIMPEXP_BASE wxChar * wxStrcpy(wxChar *dest, const wxChar *src);
 945     WXDLLIMPEXP_BASE size_t   wxStrcspn(const wxChar *s, const wxChar *reject);
 946     WXDLLIMPEXP_BASE wxChar * wxStrncat(wxChar *dest, const wxChar *src, size_t n);
 947     WXDLLIMPEXP_BASE int      wxStrncmp(const wxChar *s1, const wxChar *s2, size_t n);
 948     WXDLLIMPEXP_BASE wxChar * wxStrncpy(wxChar *dest, const wxChar *src, size_t n);
 949     WXDLLIMPEXP_BASE const wxChar * wxStrpbrk(const wxChar *s, const wxChar *accept);
 950     inline wxChar * wxStrpbrk(wxChar *s, const wxChar *accept)
 951         { return (wxChar *)wxStrpbrk((const wxChar *)s, accept); }
 952     WXDLLIMPEXP_BASE const wxChar * wxStrrchr(const wxChar *s, wxChar c);
 953     inline wxChar * wxStrrchr(wxChar *s, wxChar c)
 954         { return (wxChar *)wxStrrchr((const wxChar *)s, c); }
 955     WXDLLIMPEXP_BASE size_t   wxStrspn(const wxChar *s, const wxChar *accept);
 956     WXDLLIMPEXP_BASE const wxChar * wxStrstr(const wxChar *haystack, const wxChar *needle);
 957     inline wxChar *wxStrstr(wxChar *haystack, const wxChar *needle)
 958         { return (wxChar *)wxStrstr((const wxChar *)haystack, needle); }
 959     WXDLLIMPEXP_BASE double   wxStrtod(const wxChar *nptr, wxChar **endptr);
 960     WXDLLIMPEXP_BASE long int wxStrtol(const wxChar *nptr, wxChar **endptr, int base);
 961     WXDLLIMPEXP_BASE unsigned long int wxStrtoul(const wxChar *nptr, wxChar **endptr, int base);
 962     WXDLLIMPEXP_BASE size_t   wxStrxfrm(wxChar *dest, const wxChar *src, size_t n);
 963 #endif /* wxNEED_WX_STRING_H */
 964
 965 #ifndef wxStrdupA
 966 WXDLLIMPEXP_BASE char *wxStrdupA(const char *psz);
 967 #endif
 968
 969 #ifndef wxStrdupW
 970 WXDLLIMPEXP_BASE wchar_t *wxStrdupW(const wchar_t *pwz);
 971 #endif
 972
 973 #ifndef wxStricmp
 974 WXDLLIMPEXP_BASE int wxStricmp(const wxChar *psz1, const wxChar *psz2);
 975 #endif
 976
 977 #ifndef wxStrnicmp
 978 WXDLLIMPEXP_BASE int wxStrnicmp(const wxChar *psz1, const wxChar *psz2, size_t len);
 979 #endif
 980
 981 #ifndef wxStrtok
 982 WXDLLIMPEXP_BASE wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr);
 983 #endif
 984
 985 #ifdef __cplusplus
 986 #ifndef wxSetlocale
 987 class WXDLLIMPEXP_BASE wxWCharBuffer;
 988 WXDLLIMPEXP_BASE wxWCharBuffer wxSetlocale(int category, const wxChar *locale);
 989 #endif
 990 #endif
 991
 992 /* stdio.h functions */
 993 #ifdef wxNEED_WX_STDIO_H
 994     #include <stdio.h>
 995     WXDLLIMPEXP_BASE FILE *   wxFopen(const wxChar *path, const wxChar *mode);
 996     WXDLLIMPEXP_BASE FILE *   wxFreopen(const wxChar *path, const wxChar *mode, FILE *stream);
 997     WXDLLIMPEXP_BASE int      wxRemove(const wxChar *path);
 998     WXDLLIMPEXP_BASE int      wxRename(const wxChar *oldpath, const wxChar *newpath);
 999
1000     /* *printf() family is handled separately */
1001 #endif /* wxNEED_WX_STDIO_H */
1002
1003
1004 /* stdlib.h functions */
1005 #ifndef wxAtof
1006 WXDLLIMPEXP_BASE double   wxAtof(const wxChar *psz);
1007 #endif
1008
1009 #ifdef wxNEED_WX_STDLIB_H
1010 WXDLLIMPEXP_BASE int      wxAtoi(const wxChar *psz);
1011 WXDLLIMPEXP_BASE long     wxAtol(const wxChar *psz);
1012 WXDLLIMPEXP_BASE wxChar * wxGetenv(const wxChar *name);
1013 WXDLLIMPEXP_BASE int      wxSystem(const wxChar *psz);
1014 #endif
1015
1016
1017 /* time.h functions */
1018 #ifdef wxNEED_WX_TIME_H
1019 #if defined(__MWERKS__) && defined(macintosh)
1020     #include <time.h>
1021 #endif
1022     WXDLLIMPEXP_BASE size_t wxStrftime(wxChar *s, size_t max,
1023                                   const wxChar *fmt, const struct tm *tm);
1024 #endif /* wxNEED_WX_TIME_H */
1025
1026 #ifndef wxCtime
1027 #include <time.h>
1028 WXDLLIMPEXP_BASE wxChar *wxCtime(const time_t *timep);
1029 #endif
1030
1031
1032 /* missing functions in some WinCE versions */
1033 #ifdef _WIN32_WCE
1034 #if (_WIN32_WCE < 300)
1035 WXDLLIMPEXP_BASE void *calloc( size_t num, size_t size );
1036 #endif
1037 #endif /* _WIN32_WCE */
1038
1039 /* multibyte to wide char conversion functions and macros */
1040
1041 #if wxUSE_WCHAR_T
1042     /* multibyte<->widechar conversion */
1043     WXDLLIMPEXP_BASE size_t wxMB2WC(wchar_t *buf, const char *psz, size_t n);
1044     WXDLLIMPEXP_BASE size_t wxWC2MB(char *buf, const wchar_t *psz, size_t n);
1045
1046     #if wxUSE_UNICODE
1047         #define wxMB2WX wxMB2WC
1048         #define wxWX2MB wxWC2MB
1049         #define wxWC2WX wxStrncpy
1050         #define wxWX2WC wxStrncpy
1051     #else
1052         #define wxMB2WX wxStrncpy
1053         #define wxWX2MB wxStrncpy
1054         #define wxWC2WX wxWC2MB
1055         #define wxWX2WC wxMB2WC
1056     #endif
1057 #else /* !wxUSE_UNICODE */
1058 #error ha
1059     /* No wxUSE_WCHAR_T: we have to do something (JACS) */
1060     #define wxMB2WC wxStrncpy
1061     #define wxWC2MB wxStrncpy
1062     #define wxMB2WX wxStrncpy
1063     #define wxWX2MB wxStrncpy
1064     #define wxWC2WX wxWC2MB
1065     #define wxWX2WC wxMB2WC
1066 #endif
1067
1068 //
1069 // RN:  The following are not normal versions of memcpy et al., rather
1070 // these are either char or widechar versions depending on
1071 // if unicode is used or not.
1072 //
1073
1074 #ifdef __cplusplus
1075
1076     //
1077     //  RN: We could do the usual tricky compiler detection here,
1078     //  and use their variant (such as wmemchr, etc.).  The problem
1079     //  is that these functions are quite rare, even though they are
1080     //  part of the current POSIX standard.  In addition, most compilers
1081     //  (including even MSC) inline them just like we do right in their
1082     //  headers.
1083     //
1084     #if wxUSE_UNICODE
1085         #include <string.h> //for mem funcs
1086
1087         //implement our own wmem variants
1088         inline wxChar* wxMemchr(const wxChar* s, wxChar c, size_t l)
1089         {
1090             for(;l && *s != c;--l, ++s) {}
1091
1092             if(l)
1093                 return (wxChar*)s;
1094             return NULL;
1095         }
1096
1097         inline int wxMemcmp(const wxChar* sz1, const wxChar* sz2, size_t len)
1098         {
1099             for(; *sz1 == *sz2 && len; --len, ++sz1, ++sz2) {}
1100
1101             if(len)
1102                 return *sz1 < *sz2 ? -1 : *sz1 > *sz2;
1103             else
1104                 return 0;
1105         }
1106
1107         inline wxChar* wxMemcpy(wxChar* szOut, const wxChar* szIn, size_t len)
1108         {
1109             return (wxChar*) memcpy(szOut, szIn, len * sizeof(wxChar));
1110         }
1111
1112         inline wxChar* wxMemmove(wxChar* szOut, const wxChar* szIn, size_t len)
1113         {
1114             return (wxChar*) memmove(szOut, szIn, len * sizeof(wxChar));
1115         }
1116
1117         inline wxChar* wxMemset(wxChar* szOut, const wxChar cIn, size_t len)
1118         {
1119             wxChar* szRet = szOut;
1120
1121             while (len--)
1122                 *szOut++ = cIn;
1123
1124             return szRet;
1125         }
1126
1127     #else //!wxUSE_UNICODE
1128     #   define wxMemchr memchr
1129     #   define wxMemcmp memcmp
1130     #   define wxMemcpy memcpy
1131     #   define wxMemmove memmove
1132     #   define wxMemset memset
1133     #endif
1134
1135 #endif /*__cplusplus*/
1136
1137
1138 #endif /* _WX_WXCHAR_H_ */
1139