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     #if !defined(__MWERKS__) && defined(__DARWIN__) && ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 )
 366         /* even though they are defined and "implemented", they are bad and just
 367            stubs so we need our own - we need these even in ANSI builds!! */
 368         #define mbstowcs wxInternalMbstowcs
 369         #define wcstombs wxInternalWcstombs
 370
 371         WXDLLIMPEXP_BASE size_t wxInternalMbstowcs (wchar_t *, const char *, size_t);
 372         WXDLLIMPEXP_BASE size_t wxInternalWcstombs (char *, const wchar_t *, size_t);
 373     #endif
 374
 375     /* No UNICODE in the c library except wchar_t typedef on mac OSX 10.2 and less - roll our own */
 376     #if !defined(__MWERKS__) && wxUSE_UNICODE && defined(__DARWIN__) && ( MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_2 )
 377
 378         /* we need everything! */
 379         #define wxNEED_WX_STRING_H
 380         #define wxNEED_WX_CTYPE_H
 381
 382         #define  wxFgetchar(c)  wxFgetc(c, stdin)
 383         #define  wxFputc     wxPutc
 384         #define  wxFputchar(c)  wxPutc(c, stdout)
 385         #define  wxGetc      wxFgetc
 386         #define  wxGetchar(c)   wxFgetc(c, stdin)
 387
 388         #include <stdio.h>
 389
 390         #define wxNEED_FGETC
 391         #define wxNEED_FGETS
 392         #define wxNEED_GETS
 393         #define wxNEED_UNGETC
 394
 395         #define wxNEED_FPUTS
 396         #define wxNEED_PUTC
 397
 398         int wxFputs(const wxChar *ch, FILE *stream);
 399         int wxPutc(wxChar ch, FILE *stream);
 400
 401         WXDLLIMPEXP_BASE size_t   wxStrlen_(const wxChar *s);
 402
 403         #define wxPutchar(wch) wxPutc(wch, stdout)
 404         #define wxPuts(ws) wxFputs(ws, stdout)
 405
 406         #define wxNEED_PRINTF_CONVERSION
 407         #define wxNEED_WX_STDIO_H
 408         #define wxNEED_WX_STDLIB_H
 409         #define wxNEED_WX_TIME_H
 410
 411     #elif wxUSE_UNICODE
 412         #include <wctype.h>
 413
 414         /* this is probably glibc-specific */
 415         #if defined(__WCHAR_TYPE__) && !defined(__MWERKS__)
 416             /* ctype.h functions (wctype.h) */
 417             #define  wxIsalnum   iswalnum
 418             #define  wxIsalpha   iswalpha
 419             #define  wxIscntrl   iswcntrl
 420             #define  wxIsdigit   iswdigit
 421             #define  wxIsgraph   iswgraph
 422             #define  wxIslower   iswlower
 423             #define  wxIsprint   iswprint
 424             #define  wxIspunct   iswpunct
 425             #define  wxIsspace   iswspace
 426             #define  wxIsupper   iswupper
 427             #define  wxIsxdigit  iswxdigit
 428
 429             #if defined(__GLIBC__) && (__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)
 430                 /* /usr/include/wctype.h incorrectly declares translations */
 431                 /* tables which provokes tons of compile-time warnings -- try */
 432                 /* to correct this */
 433                 #define  wxTolower(wc)   towctrans((wc), (wctrans_t)__ctype_tolower)
 434                 #define  wxToupper(wc)   towctrans((wc), (wctrans_t)__ctype_toupper)
 435             #else /* !glibc 2.0 */
 436                 #define  wxTolower   towlower
 437                 #define  wxToupper   towupper
 438             #endif /* gcc/!gcc */
 439
 440             /* string.h functions (wchar.h) */
 441             #define  wxStrcat    wcscat
 442             #define  wxStrchr    wcschr
 443             #define  wxStrcmp    wcscmp
 444             #define  wxStrcoll   wcscoll
 445             #define  wxStrcpy    wcscpy
 446             #define  wxStrcspn   wcscspn
 447             #define  wxStrlen_   wxWcslen /* wxStrlen_() is used in wxStrlen() */
 448             #define  wxStrncat   wcsncat
 449             #define  wxStrncmp   wcsncmp
 450             #define  wxStrncpy   wcsncpy
 451             #define  wxStrpbrk   wcspbrk
 452             #define  wxStrrchr   wcsrchr
 453             #define  wxStrspn    wcsspn
 454             #define  wxStrstr    wcsstr
 455             #define  wxStrtod    wcstod
 456             #define  wxStrtol    wcstol
 457             #define  wxStrtoul   wcstoul
 458             #define  wxStrxfrm   wcsxfrm
 459
 460             #define  wxFgetc     fgetwc
 461             #define  wxFgetchar  fgetwchar
 462             #define  wxFgets     fgetws
 463             #define  wxFputc     fputwc
 464             #define  wxFputchar  fputwchar
 465             #define  wxGetc      getwc
 466             #define  wxGetchar   getwchar
 467             #define  wxGets      getws
 468             #define  wxUngetc    ungetwc
 469
 470             #ifdef HAVE_FPUTWS
 471                 #define wxFputs     fputws
 472             #else
 473                 #define wxNEED_FPUTS
 474                 #include <stdio.h>
 475                 int wxFputs(const wxChar *ch, FILE *stream);
 476             #endif
 477
 478             #ifdef HAVE_WPUTC
 479                 #define wxPutc      wputc
 480             #else
 481                 #define wxNEED_PUTC
 482                 #include <stdio.h>
 483                 int wxPutc(wxChar ch, FILE *stream);
 484             #endif
 485
 486             #ifdef HAVE_WPUTCHAR
 487                 #define wxPutchar   wputchar
 488             #else
 489                 #define wxPutchar(wch) wxPutc(wch, stdout)
 490             #endif
 491
 492             #ifdef HAVE_PUTWS
 493                 #define wxPuts      putws
 494             #else
 495                 #define wxPuts(ws) wxFputs(ws, stdout)
 496             #endif
 497
 498             /* we need %s to %ls conversion for printf and scanf etc */
 499             #define wxNEED_PRINTF_CONVERSION
 500
 501             /* glibc doesn't have wide char equivalents of the other stuff so */
 502             /* use our own versions */
 503             #define wxNEED_WX_STDIO_H
 504             #define wxNEED_WX_STDLIB_H
 505             #define wxNEED_WX_TIME_H
 506         #elif defined(__MWERKS__) && ( defined(__MSL__) || defined(__MACH__) )
 507             /* ctype.h functions (wctype.h) */
 508             #define  wxIsalnum   iswalnum
 509             #define  wxIsalpha   iswalpha
 510             #define  wxIscntrl   iswcntrl
 511             #define  wxIsdigit   iswdigit
 512             #define  wxIsgraph   iswgraph
 513             #define  wxIslower   iswlower
 514             #define  wxIsprint   iswprint
 515             #define  wxIspunct   iswpunct
 516             #define  wxIsspace   iswspace
 517             #define  wxIsupper   iswupper
 518             #define  wxIsxdigit  iswxdigit
 519             #define  wxTolower   towlower
 520             #define  wxToupper   towupper
 521
 522             /* string.h functions (wchar.h) */
 523             #define  wxStrcat    wcscat
 524             #define  wxStrchr    wcschr
 525             #define  wxStrcmp    wcscmp
 526             #define  wxStrcoll   wcscoll
 527             #define  wxStrcpy    wcscpy
 528             #define  wxStrcspn   wcscspn
 529             #define  wxStrlen_   wxWcslen /* wxStrlen_() is used in wxStrlen() */
 530             #define  wxStrncat   wcsncat
 531             #define  wxStrncmp   wcsncmp
 532             #define  wxStrncpy   wcsncpy
 533             #define  wxStrpbrk   wcspbrk
 534             #define  wxStrrchr   wcsrchr
 535             #define  wxStrspn    wcsspn
 536             #define  wxStrstr    wcsstr
 537             #define  wxStrtod    wcstod
 538             #define  wxStrtol    wcstol
 539             #define  wxStrtoul   wcstoul
 540             #define  wxStrxfrm   wcsxfrm
 541
 542             #define  wxFgetc     fgetwc
 543             #define  wxFgetchar  fgetwchar
 544             #define  wxFgets     fgetws
 545             #define  wxFputc     fputwc
 546             #define  wxFputchar  fputwchar
 547             #define  wxGetc      getwc
 548             #define  wxGetchar   getwchar
 549             #define  wxGets      getws
 550             #define  wxUngetc    ungetwc
 551
 552             #define wxNEED_PRINTF_CONVERSION
 553
 554             #define  wxPutc      putwc
 555             #define  wxPutchar   putwchar
 556             #define  wxFputs     fputws
 557
 558             /* stdio.h functions */
 559
 560             #define wxNEED_WX_STDIO_H
 561
 562             /* stdlib.h functions */
 563             #ifdef __MACH__
 564             #define wxNEED_WX_STDLIB_H
 565             #else
 566             #define  wxAtof      watof
 567             #define  wxAtoi      watoi
 568             #define  wxAtol      watol
 569             #define  wxGetenv(a)    ((wxChar*)NULL)
 570             #define  wxSystem(a)    ((int)NULL)
 571             #endif
 572             /* time.h functions */
 573             #define  wxAsctime   wasciitime
 574             #define  wxCtime     wctime
 575             /* #define  wxStrftime  wcsftime */
 576
 577             #define wxNEED_WX_TIME_H
 578         #else /* !metrowerks for apple */
 579             #error  "Please define wide character functions for your environment"
 580         #endif
 581     #else /* ASCII */
 582         #include <ctype.h>
 583         #include <string.h>
 584
 585         /* ctype.h functions */
 586         #define  wxIsalnum   isalnum
 587         #define  wxIsalpha   isalpha
 588         #define  wxIscntrl   iscntrl
 589         #define  wxIsdigit   isdigit
 590         #define  wxIsgraph   isgraph
 591         #define  wxIslower   islower
 592         #define  wxIsprint   isprint
 593         #define  wxIspunct   ispunct
 594         #define  wxIsspace   isspace
 595         #define  wxIsupper   isupper
 596         #define  wxIsxdigit  isxdigit
 597         #define  wxTolower   tolower
 598         #define  wxToupper   toupper
 599
 600          /* locale.h functons */
 601         #define  wxSetlocale setlocale
 602
 603          /* string.h functions */
 604         #define  wxStrcat    strcat
 605         #define  wxStrchr    strchr
 606         #define  wxStrcmp    strcmp
 607         #define  wxStrcoll   strcoll
 608         #define  wxStrcpy    strcpy
 609         #define  wxStrcspn   strcspn
 610
 611         /* wxStricmp and wxStrnicmp are defined below */
 612         #define  wxStrlen_   strlen /* used in wxStrlen inline function */
 613         #define  wxStrncat   strncat
 614         #define  wxStrncmp   strncmp
 615         #define  wxStrncpy   strncpy
 616         #define  wxStrpbrk   strpbrk
 617         #define  wxStrrchr   strrchr
 618         #define  wxStrspn    strspn
 619         #define  wxStrstr    strstr
 620         #define  wxStrtod    strtod
 621         #ifdef HAVE_STRTOK_R
 622             #define  wxStrtok(str, sep, last)    strtok_r(str, sep, last)
 623         #endif
 624         #define  wxStrtol    strtol
 625         #define  wxStrtoul   strtoul
 626         #define  wxStrxfrm   strxfrm
 627
 628         /* stdio.h functions */
 629         #define  wxFopen     fopen
 630         #define  wxFreopen   freopen
 631         #define  wxRemove    remove
 632         #define  wxRename    rename
 633
 634         #define  wxPerror    perror
 635         #define  wxTmpnam    tmpnam
 636
 637         #define  wxFgetc     fgetc
 638         #define  wxFgetchar  fgetchar
 639         #define  wxFgets     fgets
 640         #define  wxFputc     fputc
 641         #define  wxFputs     fputs
 642         #define  wxFputchar  fputchar
 643         #define  wxFprintf   fprintf
 644         #define  wxFscanf    fscanf
 645         #define  wxGetc      getc
 646         #define  wxGetchar   getchar
 647         #define  wxGets      gets
 648         #define  wxPrintf    printf
 649         #define  wxPutc      putc
 650         #define  wxPutchar   putchar
 651         #define  wxPuts      puts
 652         #define  wxScanf     scanf
 653         #define  wxSprintf   sprintf
 654         #define  wxSscanf    sscanf
 655         #define  wxUngetc    ungetc
 656         #define  wxVfprintf  vfprintf
 657         #define  wxVprintf   vprintf
 658         #define  wxVsscanf   vsscanf
 659         #define  wxVsprintf  vsprintf
 660
 661         /* stdlib.h functions */
 662         #define  wxAtof      atof
 663         #define  wxAtoi      atoi
 664         #define  wxAtol      atol
 665         #define  wxGetenv    getenv
 666         #define  wxSystem    system
 667
 668         /* time.h functions */
 669         #define  wxAsctime   asctime
 670         #define  wxCtime     ctime
 671         #define  wxStrftime  strftime
 672     #endif /* Unicode/ASCII */
 673 #endif /* TCHAR-aware compilers/the others */
 674
 675 /*
 676     various special cases
 677  */
 678
 679 /* define wxStricmp and wxStrnicmp for various compilers */
 680
 681 /* note that in Unicode mode we definitely are going to need our own version */
 682 #if !defined(wxStricmp) && !wxUSE_UNICODE
 683     #if defined(__BORLANDC__) || defined(__WATCOMC__) || \
 684             defined(__SALFORDC__) || defined(__VISAGECPP__) || \
 685             defined(__EMX__) || defined(__DJGPP__)
 686         #define wxStricmp stricmp
 687         #define wxStrnicmp strnicmp
 688     #elif defined(__SYMANTEC__) || defined(__VISUALC__) || \
 689             (defined(__MWERKS__) && defined(__INTEL__))
 690         #define wxStricmp _stricmp
 691         #define wxStrnicmp _strnicmp
 692     #elif defined(__UNIX__) || defined(__GNUWIN32__)
 693         #define wxStricmp strcasecmp
 694         #define wxStrnicmp strncasecmp
 695     /* #else -- use wxWidgets implementation */
 696     #endif
 697 #endif /* !defined(wxStricmp) */
 698
 699 /* define wxWcslen() which should be always available if wxUSE_WCHAR_T == 1 (as */
 700 /* it's used in wx/buffer.h -- and also might be used just below by wxStrlen() */
 701 /* when wxStrlen_() is #define'd as wxWcslen so do it before defining wxStrlen) */
 702 #if wxUSE_WCHAR_T
 703     #ifdef HAVE_WCSLEN
 704         #define wxWcslen wcslen
 705     #else
 706     #if defined( __WXMAC_XCODE__ ) && !defined( __cplusplus )
 707     /* xcode native targets are giving multiply defined symbols on regex */
 708         static
 709     #endif
 710         inline size_t wxWcslen(const wchar_t *s)
 711         {
 712             size_t n = 0;
 713             while ( *s++ )
 714                 n++;
 715
 716             return n;
 717         }
 718     #endif
 719 #endif /* wxUSE_WCHAR_T */
 720
 721 #ifdef __cplusplus
 722 /* checks whether the passed in pointer is NULL and if the string is empty */
 723 inline bool wxIsEmpty(const wxChar *p) { return !p || !*p; }
 724
 725 /* safe version of strlen() (returns 0 if passed NULL pointer) */
 726 inline size_t wxStrlen(const wxChar *psz) { return psz ? wxStrlen_(psz) : 0; }
 727 #endif
 728
 729 /*
 730     each of strdup() and wcsdup() may or may not be available but we need both
 731     of them anyhow for wx/buffer.h so we define the missing one(s) in
 732     wxchar.cpp and so we should always have both wxStrdupA and wxStrdupW
 733     defined -- if this is somehow not the case in some situations, please
 734     correct that and not the lines here
 735  */
 736 #if wxUSE_UNICODE
 737     #define wxStrdup wxStrdupW
 738 #else
 739     #define wxStrdup wxStrdupA
 740 #endif
 741
 742 #ifdef __cplusplus
 743 WXDLLIMPEXP_BASE bool wxOKlibc(); /* for internal use */
 744 #endif
 745
 746 /* printf() family saga */
 747
 748 /*
 749    For some systems vsnprintf() exists in the system libraries but not in the
 750    headers, so we need to declare it ourselves to be able to use it.
 751  */
 752 #if defined(HAVE_VSNPRINTF) && !defined(HAVE_VSNPRINTF_DECL)
 753     extern "C"
 754     int vsnprintf(char *str, size_t size, const char *format, va_list ap);
 755 #endif /* !HAVE_VSNPRINTF_DECL */
 756
 757 /*
 758    First of all, we always want to define safe snprintf() function to be used
 759    instead of sprintf(). Some compilers already have it (or rather vsnprintf()
 760    which we really need...), otherwise we implement it using our own printf()
 761    code.
 762
 763    We define function with a trailing underscore here because the real one is a
 764    wrapper around it as explained below
 765  */
 766 #ifndef wxVsnprintf_
 767     #if wxUSE_UNICODE
 768         #if defined(__MWERKS__)
 769             #define HAVE_WCSRTOMBS 1
 770             #define HAVE_VSWPRINTF 1
 771         #endif
 772         #if defined(__WATCOMC__)
 773             #define wxVsnprintf_    _vsnwprintf
 774             #define wxSnprintf_     _snwprintf
 775         #endif
 776         #if defined(HAVE__VSNWPRINTF)
 777             #define wxVsnprintf_    _vsnwprintf
 778         /* MinGW?MSVCRT has the wrong vswprintf */
 779         #elif defined(HAVE_VSWPRINTF) && !defined(__MINGW32__)
 780             #define wxVsnprintf_    vswprintf
 781         #endif
 782     #else /* ASCII */
 783         /* all versions of CodeWarrior supported by wxWidgets apparently have */
 784         /* vsnprintf() */
 785         #if defined(HAVE_VSNPRINTF) || defined(__MWERKS__) || defined(__WATCOMC__)
 786             /* assume we have snprintf() too if we have vsnprintf() */
 787             #define wxVsnprintf_    vsnprintf
 788             #define wxSnprintf_     snprintf
 789         #endif
 790     #endif
 791 #endif /* wxVsnprintf_ not defined yet */
 792
 793 #ifndef wxSnprintf_
 794     /* no [v]snprintf(), cook our own */
 795     WXDLLIMPEXP_BASE int wxSnprintf_(wxChar *buf, size_t len, const wxChar *format,
 796                                 ...) ATTRIBUTE_PRINTF_3;
 797 #endif
 798 #ifndef wxVsnprintf_
 799     WXDLLIMPEXP_BASE int wxVsnprintf_(wxChar *buf, size_t len, const wxChar *format,
 800                                  va_list argptr);
 801 #endif
 802
 803 /*
 804    In Unicode mode we need to have all standard functions such as wprintf() and
 805    so on but not all systems have them so use our own implementations in this
 806    case.
 807  */
 808 #if wxUSE_UNICODE && !defined(wxHAVE_TCHAR_SUPPORT) && !defined(HAVE_WPRINTF)
 809     #define wxNEED_WPRINTF
 810 #endif
 811
 812 /*
 813    More Unicode complications: although both ANSI C and C++ define a number of
 814    wide character functions such as wprintf(), not all environments have them.
 815    Worse, those which do have different behaviours: under Windows, %s format
 816    specifier changes its meaning in Unicode build and expects a Unicode string
 817    while under Unix/POSIX it still means an ASCII string even for wprintf() and
 818    %ls has to be used for wide strings.
 819
 820    We choose to always emulate Windows behaviour as more useful for us so even
 821    if we have wprintf() we still must wrap it in a non trivial wxPrintf().
 822
 823 */
 824
 825 #if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
 826     /*
 827         we need to implement all wide character printf and scanf functions
 828         either because we don't have them at all or because they don't have the
 829         semantics we need
 830      */
 831
 832     #include <stdio.h>  /* for FILE */
 833
 834     int wxScanf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_1;
 835     int wxSscanf( const wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_2;
 836     int wxFscanf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_2;
 837     int wxVsscanf( const wxChar *str, const wxChar *format, va_list ap );
 838     int wxPrintf( const wxChar *format, ... ) ATTRIBUTE_PRINTF_1;
 839     int wxSprintf( wxChar *str, const wxChar *format, ... ) ATTRIBUTE_PRINTF_2;
 840     int wxFprintf( FILE *stream, const wxChar *format, ... ) ATTRIBUTE_PRINTF_2;
 841     int wxVfprintf( FILE *stream, const wxChar *format, va_list ap );
 842     int wxVprintf( const wxChar *format, va_list ap );
 843     int wxVsprintf( wxChar *str, const wxChar *format, va_list ap );
 844 #endif /* wxNEED_PRINTF_CONVERSION */
 845
 846 /* these 2 can be simply mapped to the versions with underscore at the end */
 847 /* if we don't have to do the conversion */
 848 /*
 849    However, if we don't have any vswprintf() at all we don't need to redefine
 850    anything as our own wxVsnprintf_() already behaves as needed.
 851 */
 852 #if defined(wxNEED_PRINTF_CONVERSION) && defined(wxVsnprintf_)
 853     int wxSnprintf( wxChar *str, size_t size, const wxChar *format, ... ) ATTRIBUTE_PRINTF_3;
 854     int wxVsnprintf( wxChar *str, size_t size, const wxChar *format, va_list ap );
 855 #else
 856     #define wxSnprintf wxSnprintf_
 857     #define wxVsnprintf wxVsnprintf_
 858 #endif
 859
 860 /*
 861     various functions which might not be available in libc and for which we
 862     provide our own replacements in wxchar.cpp
 863  */
 864
 865 /* ctype.h functions */
 866
 867 /* RN: Used only under OSX <= 10.2 currently */
 868 #ifdef wxNEED_WX_CTYPE_H
 869     WXDLLIMPEXP_BASE int wxIsalnum(wxChar ch);
 870     WXDLLIMPEXP_BASE int wxIsalpha(wxChar ch);
 871     WXDLLIMPEXP_BASE int wxIscntrl(wxChar ch);
 872     WXDLLIMPEXP_BASE int wxIsdigit(wxChar ch);
 873     WXDLLIMPEXP_BASE int wxIsgraph(wxChar ch);
 874     WXDLLIMPEXP_BASE int wxIslower(wxChar ch);
 875     WXDLLIMPEXP_BASE int wxIsprint(wxChar ch);
 876     WXDLLIMPEXP_BASE int wxIspunct(wxChar ch);
 877     WXDLLIMPEXP_BASE int wxIsspace(wxChar ch);
 878     WXDLLIMPEXP_BASE int wxIsupper(wxChar ch);
 879     WXDLLIMPEXP_BASE int wxIsxdigit(wxChar ch);
 880     WXDLLIMPEXP_BASE int wxTolower(wxChar ch);
 881     WXDLLIMPEXP_BASE int wxToupper(wxChar ch);
 882 #endif /* wxNEED_WX_CTYPE_H */
 883
 884 /* under VC++ 6.0 isspace() returns 1 for 8 bit chars which completely breaks */
 885 /* the file parsing -- this may be true for 5.0 as well, update #ifdef then */
 886 #if defined(__VISUALC__) && (__VISUALC__ >= 1200) && !wxUSE_UNICODE
 887     #undef wxIsspace
 888     #define wxIsspace(c) ((((unsigned)c) < 128) && isspace(c))
 889 #endif /* VC++ */
 890
 891 /*
 892    a few compilers don't have the (non standard but common) isascii function,
 893    define it ourselves for them
 894  */
 895 #ifndef isascii
 896     #if defined(__MWERKS__)
 897         #define wxNEED_ISASCII
 898     #elif defined(_WIN32_WCE)
 899         #if _WIN32_WCE <= 211
 900             #define wxNEED_ISASCII
 901         #endif
 902     #endif
 903 #endif /* isascii */
 904
 905 #ifdef wxNEED_ISASCII
 906     inline int isascii(int c) { return (unsigned)c < 0x80; }
 907 #endif
 908
 909 #ifdef _WIN32_WCE
 910     #if _WIN32_WCE <= 211
 911         #define isspace(c) ((c) == _T(' ') || (c) == _T('\t'))
 912     #endif
 913 #endif /* _WIN32_WCE */
 914
 915 /*
 916    we had goofed and defined wxIsctrl() instead of (correct) wxIscntrl() in the
 917    initial versions of this header -- now it is too late to remove it so
 918    although we fixed the function/macro name above, still provide the
 919    backwards-compatible synonym.
 920  */
 921 #define wxIsctrl wxIscntrl
 922
 923 /* string.h functions */
 924 #ifndef strdup
 925     #if defined(__MWERKS__) && !defined(__MACH__) && (__MSL__ < 0x00008000)
 926         #define wxNEED_STRDUP
 927     #elif defined(__WXWINCE__)
 928         #if _WIN32_WCE <= 211
 929             #define wxNEED_STRDUP
 930         #endif
 931     #endif
 932 #endif /* strdup */
 933
 934 #ifdef wxNEED_STRDUP
 935     WXDLLIMPEXP_BASE char *strdup(const char* s);
 936 #endif
 937
 938 /* RN: Used only under OSX <= 10.2 currently */
 939 #ifdef wxNEED_WX_STRING_H
 940     WXDLLIMPEXP_BASE wxChar * wxStrcat(wxChar *dest, const wxChar *src);
 941     WXDLLIMPEXP_BASE const wxChar * wxStrchr(const wxChar *s, wxChar c);
 942     inline wxChar * wxStrchr(wxChar *s, wxChar c)
 943         { return (wxChar *)wxStrchr((const wxChar *)s, c); }
 944     WXDLLIMPEXP_BASE int      wxStrcmp(const wxChar *s1, const wxChar *s2);
 945     WXDLLIMPEXP_BASE int      wxStrcoll(const wxChar *s1, const wxChar *s2);
 946     WXDLLIMPEXP_BASE wxChar * wxStrcpy(wxChar *dest, const wxChar *src);
 947     WXDLLIMPEXP_BASE size_t   wxStrcspn(const wxChar *s, const wxChar *reject);
 948     WXDLLIMPEXP_BASE wxChar * wxStrncat(wxChar *dest, const wxChar *src, size_t n);
 949     WXDLLIMPEXP_BASE int      wxStrncmp(const wxChar *s1, const wxChar *s2, size_t n);
 950     WXDLLIMPEXP_BASE wxChar * wxStrncpy(wxChar *dest, const wxChar *src, size_t n);
 951     WXDLLIMPEXP_BASE const wxChar * wxStrpbrk(const wxChar *s, const wxChar *accept);
 952     inline wxChar * wxStrpbrk(wxChar *s, const wxChar *accept)
 953         { return (wxChar *)wxStrpbrk((const wxChar *)s, accept); }
 954     WXDLLIMPEXP_BASE const wxChar * wxStrrchr(const wxChar *s, wxChar c);
 955     inline wxChar * wxStrrchr(wxChar *s, wxChar c)
 956         { return (wxChar *)wxStrrchr((const wxChar *)s, c); }
 957     WXDLLIMPEXP_BASE size_t   wxStrspn(const wxChar *s, const wxChar *accept);
 958     WXDLLIMPEXP_BASE const wxChar * wxStrstr(const wxChar *haystack, const wxChar *needle);
 959     inline wxChar *wxStrstr(wxChar *haystack, const wxChar *needle)
 960         { return (wxChar *)wxStrstr((const wxChar *)haystack, needle); }
 961     WXDLLIMPEXP_BASE double   wxStrtod(const wxChar *nptr, wxChar **endptr);
 962     WXDLLIMPEXP_BASE long int wxStrtol(const wxChar *nptr, wxChar **endptr, int base);
 963     WXDLLIMPEXP_BASE unsigned long int wxStrtoul(const wxChar *nptr, wxChar **endptr, int base);
 964     WXDLLIMPEXP_BASE size_t   wxStrxfrm(wxChar *dest, const wxChar *src, size_t n);
 965 #endif /* wxNEED_WX_STRING_H */
 966
 967 #ifndef wxStrdupA
 968 WXDLLIMPEXP_BASE char *wxStrdupA(const char *psz);
 969 #endif
 970
 971 #ifndef wxStrdupW
 972 WXDLLIMPEXP_BASE wchar_t *wxStrdupW(const wchar_t *pwz);
 973 #endif
 974
 975 #ifndef wxStricmp
 976 WXDLLIMPEXP_BASE int wxStricmp(const wxChar *psz1, const wxChar *psz2);
 977 #endif
 978
 979 #ifndef wxStrnicmp
 980 WXDLLIMPEXP_BASE int wxStrnicmp(const wxChar *psz1, const wxChar *psz2, size_t len);
 981 #endif
 982
 983 #ifndef wxStrtok
 984 WXDLLIMPEXP_BASE wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr);
 985 #endif
 986
 987 #ifdef __cplusplus
 988 #ifndef wxSetlocale
 989 class WXDLLIMPEXP_BASE wxWCharBuffer;
 990 WXDLLIMPEXP_BASE wxWCharBuffer wxSetlocale(int category, const wxChar *locale);
 991 #endif
 992 #endif
 993
 994 /* stdio.h functions */
 995 #ifdef wxNEED_WX_STDIO_H
 996     #include <stdio.h>
 997     WXDLLIMPEXP_BASE FILE *   wxFopen(const wxChar *path, const wxChar *mode);
 998     WXDLLIMPEXP_BASE FILE *   wxFreopen(const wxChar *path, const wxChar *mode, FILE *stream);
 999     WXDLLIMPEXP_BASE int      wxRemove(const wxChar *path);
1000     WXDLLIMPEXP_BASE int      wxRename(const wxChar *oldpath, const wxChar *newpath);
1001
1002     /* *printf() family is handled separately */
1003 #endif /* wxNEED_WX_STDIO_H */
1004
1005
1006 /* stdlib.h functions */
1007 #ifndef wxAtof
1008 WXDLLIMPEXP_BASE double   wxAtof(const wxChar *psz);
1009 #endif
1010
1011 #ifdef wxNEED_WX_STDLIB_H
1012 WXDLLIMPEXP_BASE int      wxAtoi(const wxChar *psz);
1013 WXDLLIMPEXP_BASE long     wxAtol(const wxChar *psz);
1014 WXDLLIMPEXP_BASE wxChar * wxGetenv(const wxChar *name);
1015 WXDLLIMPEXP_BASE int      wxSystem(const wxChar *psz);
1016 #endif
1017
1018
1019 /* time.h functions */
1020 #ifdef wxNEED_WX_TIME_H
1021 #if defined(__MWERKS__) && defined(macintosh)
1022     #include <time.h>
1023 #endif
1024     WXDLLIMPEXP_BASE size_t wxStrftime(wxChar *s, size_t max,
1025                                   const wxChar *fmt, const struct tm *tm);
1026 #endif /* wxNEED_WX_TIME_H */
1027
1028 #ifndef wxCtime
1029 #include <time.h>
1030 WXDLLIMPEXP_BASE wxChar *wxCtime(const time_t *timep);
1031 #endif
1032
1033
1034 /* missing functions in some WinCE versions */
1035 #ifdef _WIN32_WCE
1036 #if (_WIN32_WCE < 300)
1037 WXDLLIMPEXP_BASE void *calloc( size_t num, size_t size );
1038 #endif
1039 #endif /* _WIN32_WCE */
1040
1041 /* multibyte to wide char conversion functions and macros */
1042
1043 #if wxUSE_WCHAR_T
1044     /* multibyte<->widechar conversion */
1045     WXDLLIMPEXP_BASE size_t wxMB2WC(wchar_t *buf, const char *psz, size_t n);
1046     WXDLLIMPEXP_BASE size_t wxWC2MB(char *buf, const wchar_t *psz, size_t n);
1047
1048     #if wxUSE_UNICODE
1049         #define wxMB2WX wxMB2WC
1050         #define wxWX2MB wxWC2MB
1051         #define wxWC2WX wxStrncpy
1052         #define wxWX2WC wxStrncpy
1053     #else
1054         #define wxMB2WX wxStrncpy
1055         #define wxWX2MB wxStrncpy
1056         #define wxWC2WX wxWC2MB
1057         #define wxWX2WC wxMB2WC
1058     #endif
1059 #else /* !wxUSE_UNICODE */
1060 #error ha
1061     /* No wxUSE_WCHAR_T: we have to do something (JACS) */
1062     #define wxMB2WC wxStrncpy
1063     #define wxWC2MB wxStrncpy
1064     #define wxMB2WX wxStrncpy
1065     #define wxWX2MB wxStrncpy
1066     #define wxWC2WX wxWC2MB
1067     #define wxWX2WC wxMB2WC
1068 #endif
1069
1070 //
1071 // RN:  The following are not normal versions of memcpy et al., rather
1072 // these are either char or widechar versions depending on
1073 // if unicode is used or not.
1074 //
1075
1076 #ifdef __cplusplus
1077
1078     //
1079     //  RN: We could do the usual tricky compiler detection here,
1080     //  and use their variant (such as wmemchr, etc.).  The problem
1081     //  is that these functions are quite rare, even though they are
1082     //  part of the current POSIX standard.  In addition, most compilers
1083     //  (including even MSC) inline them just like we do right in their
1084     //  headers.
1085     //
1086     #if wxUSE_UNICODE
1087         #include <string.h> //for mem funcs
1088
1089         //implement our own wmem variants
1090         inline wxChar* wxMemchr(const wxChar* s, wxChar c, size_t l)
1091         {
1092             for(;l && *s != c;--l, ++s) {}
1093
1094             if(l)
1095                 return (wxChar*)s;
1096             return NULL;
1097         }
1098
1099         inline int wxMemcmp(const wxChar* sz1, const wxChar* sz2, size_t len)
1100         {
1101             for(; *sz1 == *sz2 && len; --len, ++sz1, ++sz2) {}
1102
1103             if(len)
1104                 return *sz1 < *sz2 ? -1 : *sz1 > *sz2;
1105             else
1106                 return 0;
1107         }
1108
1109         inline wxChar* wxMemcpy(wxChar* szOut, const wxChar* szIn, size_t len)
1110         {
1111             return (wxChar*) memcpy(szOut, szIn, len * sizeof(wxChar));
1112         }
1113
1114         inline wxChar* wxMemmove(wxChar* szOut, const wxChar* szIn, size_t len)
1115         {
1116             return (wxChar*) memmove(szOut, szIn, len * sizeof(wxChar));
1117         }
1118
1119         inline wxChar* wxMemset(wxChar* szOut, const wxChar cIn, size_t len)
1120         {
1121             wxChar* szRet = szOut;
1122
1123             while (len--)
1124                 *szOut++ = cIn;
1125
1126             return szRet;
1127         }
1128
1129     #else //!wxUSE_UNICODE
1130     #   define wxMemchr memchr
1131     #   define wxMemcmp memcmp
1132     #   define wxMemcpy memcpy
1133     #   define wxMemmove memmove
1134     #   define wxMemset memset
1135     #endif
1136
1137 #endif /*__cplusplus*/
1138
1139
1140 #endif /* _WX_WXCHAR_H_ */
1141