include/wx/wxcrtvararg.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/wxcrtvararg.h
   3 // Purpose:     Type-safe ANSI and Unicode builds compatible wrappers for
   4 //              printf(), scanf() and related CRT functions
   5 // Author:      Joel Farley, Ove Kåven
   6 // Modified by: Vadim Zeitlin, Robert Roebling, Ron Lee
   7 // Created:     2007-02-19
   8 // RCS-ID:      $Id$
   9 // Copyright:   (c) 2007 REA Elektronik GmbH
  10 // Licence:     wxWindows licence
  11 ///////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_WXCRTVARARG_H_
  14 #define _WX_WXCRTVARARG_H_
  15
  16 // NB: User code should include wx/crt.h instead of including this
  17 //     header directly.
  18
  19 #include "wx/wxcrt.h"
  20 #include "wx/strvararg.h"
  21
  22 #include "wx/string.h"
  23
  24 // ----------------------------------------------------------------------------
  25 // CRT functions aliases
  26 // ----------------------------------------------------------------------------
  27
  28 /* Required for wxPrintf() etc */
  29 #include <stdarg.h>
  30
  31 /* printf() family saga */
  32
  33 /*
  34    For many old Unix systems [v]snprintf()/vsscanf() exists in the system
  35    libraries but not in the headers, so we need to declare it ourselves to be
  36    able to use it.
  37  */
  38 #ifdef __UNIX__
  39
  40 #if defined(HAVE_VSNPRINTF) && !defined(HAVE_VSNPRINTF_DECL)
  41 #ifdef __cplusplus
  42     extern "C"
  43 #else
  44     extern
  45 #endif
  46     int vsnprintf(char *str, size_t size, const char *format, va_list ap);
  47 #endif /* !HAVE_VSNPRINTF_DECL */
  48
  49 #if defined(HAVE_SNPRINTF) && !defined(HAVE_SNPRINTF_DECL)
  50 #ifdef __cplusplus
  51     extern "C"
  52 #else
  53     extern
  54 #endif
  55     int snprintf(char *str, size_t size, const char *format, ...);
  56 #endif /* !HAVE_SNPRINTF_DECL */
  57
  58 #if defined(HAVE_VSSCANF) && !defined(HAVE_VSSCANF_DECL)
  59 #ifdef __cplusplus
  60     extern "C"
  61 #else
  62     extern
  63 #endif
  64     int vsscanf(const char *str, const char *format, va_list ap);
  65 #endif /* !HAVE_VSSCANF_DECL */
  66
  67 /* Wrapper for vsnprintf if it's 3rd parameter is non-const. Note: the
  68  * same isn't done for snprintf below, the builtin wxSnprintf_ is used
  69  * instead since it's already a simple wrapper */
  70 #if defined __cplusplus && defined HAVE_BROKEN_VSNPRINTF_DECL
  71     inline int wx_fixed_vsnprintf(char *str, size_t size, const char *format, va_list ap)
  72     {
  73         return vsnprintf(str, size, (char*)format, ap);
  74     }
  75 #endif
  76
  77 #endif /* __UNIX__ */
  78
  79 /*
  80    mingw32 normally uses MSVCRT which has non-standard vswprintf() and so
  81    normally _vsnwprintf() is used instead, the only exception is when mingw32
  82    is used with STLPort which does have a standard vswprintf() starting from
  83    version 5.1 which we can use.
  84  */
  85 #ifdef __MINGW32__
  86     #if defined(_STLPORT_VERSION) && _STLPORT_VERSION >= 0x510
  87         #ifndef HAVE_VSWPRINTF
  88             #define HAVE_VSWPRINTF
  89         #endif
  90     #elif defined(HAVE_VSWPRINTF)
  91         /* can't use non-standard vswprintf() */
  92         #undef HAVE_VSWPRINTF
  93     #endif
  94 #endif /* __MINGW32__ */
  95
  96 #if defined(__WATCOMC__)
  97     #define HAVE_VSWPRINTF 1
  98 #endif
  99
 100 #if wxUSE_PRINTF_POS_PARAMS
 101     /*
 102         The systems where vsnprintf() supports positional parameters should
 103         define the HAVE_UNIX98_PRINTF symbol.
 104
 105         On systems which don't (e.g. Windows) we are forced to use
 106         our wxVsnprintf() implementation.
 107     */
 108     #if defined(HAVE_UNIX98_PRINTF)
 109         #ifdef HAVE_VSWPRINTF
 110             #define wxCRT_VsnprintfW   vswprintf
 111         #endif
 112         #ifdef HAVE_BROKEN_VSNPRINTF_DECL
 113             #define wxCRT_VsnprintfA    wx_fixed_vsnprintf
 114         #else
 115             #define wxCRT_VsnprintfA    vsnprintf
 116         #endif
 117     #else /* !HAVE_UNIX98_PRINTF */
 118         /*
 119             The only compiler with positional parameters support under Windows
 120             is VC++ 8.0 which provides a new xxprintf_p() functions family.
 121             The 2003 PSDK includes a slightly earlier version of VC8 than the
 122             main release and does not have the printf_p functions.
 123          */
 124         #if defined _MSC_FULL_VER && _MSC_FULL_VER >= 140050727 && !defined __WXWINCE__
 125             #define wxCRT_VsnprintfA    _vsprintf_p
 126             #define wxCRT_VsnprintfW    _vswprintf_p
 127         #endif
 128     #endif /* HAVE_UNIX98_PRINTF/!HAVE_UNIX98_PRINTF */
 129 #else /* !wxUSE_PRINTF_POS_PARAMS */
 130     /*
 131        We always want to define safe snprintf() function to be used instead of
 132        sprintf(). Some compilers already have it (or rather vsnprintf() which
 133        we really need...), otherwise we implement it using our own printf()
 134        code.
 135
 136        We define function with a trailing underscore here because the real one
 137        is a wrapper around it as explained below
 138      */
 139
 140     #if defined(__VISUALC__) || \
 141             (defined(__BORLANDC__) && __BORLANDC__ >= 0x540)
 142         #define wxCRT_VsnprintfA    _vsnprintf
 143         #define wxCRT_VsnprintfW    _vsnwprintf
 144     #else
 145         #if defined(HAVE__VSNWPRINTF)
 146             #define wxCRT_VsnprintfW    _vsnwprintf
 147         #elif defined(HAVE_VSWPRINTF)
 148             #define wxCRT_VsnprintfW     vswprintf
 149         #elif defined(__WATCOMC__)
 150             #define wxCRT_VsnprintfW    _vsnwprintf
 151         #endif
 152
 153         #if defined(HAVE_VSNPRINTF) \
 154             || defined(__WATCOMC__)
 155             #ifdef HAVE_BROKEN_VSNPRINTF_DECL
 156                 #define wxCRT_VsnprintfA    wx_fixed_vsnprintf
 157             #else
 158                 #define wxCRT_VsnprintfA    vsnprintf
 159             #endif
 160         #endif
 161     #endif
 162 #endif /* wxUSE_PRINTF_POS_PARAMS/!wxUSE_PRINTF_POS_PARAMS */
 163
 164 #ifndef wxCRT_VsnprintfW
 165     /* no (suitable) vsnprintf(), cook our own */
 166     WXDLLIMPEXP_BASE int
 167     wxCRT_VsnprintfW(wchar_t *buf, size_t len, const wchar_t *format, va_list argptr);
 168     #define wxUSE_WXVSNPRINTFW 1
 169 #else
 170     #define wxUSE_WXVSNPRINTFW 0
 171 #endif
 172
 173 #ifndef wxCRT_VsnprintfA
 174         /* no (suitable) vsnprintf(), cook our own */
 175         WXDLLIMPEXP_BASE int
 176         wxCRT_VsnprintfA(char *buf, size_t len, const char *format, va_list argptr);
 177         #define wxUSE_WXVSNPRINTFA 1
 178 #else
 179         #define wxUSE_WXVSNPRINTFA 0
 180 #endif
 181
 182 // for wxString code, define wxUSE_WXVSNPRINTF to indicate that wx
 183 // implementation is used no matter what (in UTF-8 build, either *A or *W
 184 // version may be called):
 185 #if !wxUSE_UNICODE
 186     #define wxUSE_WXVSNPRINTF wxUSE_WXVSNPRINTFA
 187 #elif wxUSE_UNICODE_WCHAR
 188     #define wxUSE_WXVSNPRINTF wxUSE_WXVSNPRINTFW
 189 #elif wxUSE_UTF8_LOCALE_ONLY
 190     #define wxUSE_WXVSNPRINTF wxUSE_WXVSNPRINTFA
 191 #else // UTF-8 under any locale
 192     #define wxUSE_WXVSNPRINTF (wxUSE_WXVSNPRINTFA && wxUSE_WXVSNPRINTFW)
 193 #endif
 194
 195 #define wxCRT_FprintfA       fprintf
 196 #define wxCRT_PrintfA        printf
 197 #define wxCRT_VfprintfA      vfprintf
 198 #define wxCRT_VprintfA       vprintf
 199 #define wxCRT_VsprintfA      vsprintf
 200
 201 /*
 202    In Unicode mode we need to have all standard functions such as wprintf() and
 203    so on but not all systems have them so use our own implementations in this
 204    case.
 205  */
 206 #if wxUSE_UNICODE && !defined(wxHAVE_TCHAR_SUPPORT) && !defined(HAVE_WPRINTF)
 207     #define wxNEED_WPRINTF
 208 #endif
 209 #if wxUSE_UNICODE && !defined(wxHAVE_TCHAR_SUPPORT) && !defined(HAVE_VSWSCANF)
 210     #define wxNEED_VSWSCANF
 211 #endif
 212
 213
 214 #if defined(wxNEED_WPRINTF)
 215     /*
 216         we need to implement all wide character printf functions either because
 217         we don't have them at all or because they don't have the semantics we
 218         need
 219      */
 220     int wxCRT_PrintfW( const wchar_t *format, ... );
 221     int wxCRT_FprintfW( FILE *stream, const wchar_t *format, ... );
 222     int wxCRT_VfprintfW( FILE *stream, const wchar_t *format, va_list ap );
 223     int wxCRT_VprintfW( const wchar_t *format, va_list ap );
 224     int wxCRT_VsprintfW( wchar_t *str, const wchar_t *format, va_list ap );
 225 #else /* !wxNEED_WPRINTF */
 226     #define wxCRT_FprintfW      fwprintf
 227     #define wxCRT_PrintfW       wprintf
 228     #define wxCRT_VfprintfW     vfwprintf
 229     #define wxCRT_VprintfW      vwprintf
 230
 231     #if defined(__WINDOWS__) && !defined(HAVE_VSWPRINTF)
 232         // only non-standard vswprintf() without buffer size argument can be used here
 233         #define  wxCRT_VsprintfW     vswprintf
 234     #endif
 235 #endif /* wxNEED_WPRINTF */
 236
 237
 238 /* Required for wxScanf() etc. */
 239 #define wxCRT_ScanfA     scanf
 240 #define wxCRT_SscanfA    sscanf
 241 #define wxCRT_FscanfA    fscanf
 242 #define wxCRT_VsscanfA   vsscanf
 243
 244 #if defined(wxNEED_WPRINTF)
 245     int wxCRT_ScanfW(const wchar_t *format, ...);
 246     int wxCRT_SscanfW(const wchar_t *str, const wchar_t *format, ...);
 247     int wxCRT_FscanfW(FILE *stream, const wchar_t *format, ...);
 248 #else
 249     #define wxCRT_ScanfW     wxVMS_USE_STD wscanf
 250     #define wxCRT_SscanfW    wxVMS_USE_STD swscanf
 251     #define wxCRT_FscanfW    wxVMS_USE_STD fwscanf
 252 #endif
 253 #ifdef wxNEED_VSWSCANF
 254     int wxCRT_VsscanfW(const wchar_t *str, const wchar_t *format, va_list ap);
 255 #else
 256     #define wxCRT_VsscanfW   wxVMS_USE_STD vswscanf
 257 #endif
 258
 259 // ----------------------------------------------------------------------------
 260 // user-friendly wrappers to CRT functions
 261 // ----------------------------------------------------------------------------
 262
 263 #ifdef __WATCOMC__
 264     // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
 265     #define wxPrintf    wxPrintf_Impl
 266     #define wxFprintf   wxFprintf_Impl
 267     #define wxSprintf   wxSprintf_Impl
 268     #define wxSnprintf  wxSnprintf_Impl
 269 #endif
 270
 271     // FIXME-UTF8: remove this
 272 #if wxUSE_UNICODE
 273     #define wxCRT_PrintfNative wxCRT_PrintfW
 274     #define wxCRT_FprintfNative wxCRT_FprintfW
 275 #else
 276     #define wxCRT_PrintfNative wxCRT_PrintfA
 277     #define wxCRT_FprintfNative wxCRT_FprintfA
 278 #endif
 279
 280
 281 WX_DEFINE_VARARG_FUNC_SANS_N0(int, wxPrintf, 1, (const wxFormatString&),
 282                               wxCRT_PrintfNative, wxCRT_PrintfA)
 283 inline int wxPrintf(const wxFormatString& s)
 284 {
 285     return wxPrintf("%s", s.InputAsString());
 286 }
 287
 288 WX_DEFINE_VARARG_FUNC_SANS_N0(int, wxFprintf, 2, (FILE*, const wxFormatString&),
 289                               wxCRT_FprintfNative, wxCRT_FprintfA)
 290 inline int wxFprintf(FILE *f, const wxFormatString& s)
 291 {
 292     return wxFprintf(f, "%s", s.InputAsString());
 293 }
 294
 295 // va_list versions of printf functions simply forward to the respective
 296 // CRT function; note that they assume that va_list was created using
 297 // wxArgNormalizer<T>!
 298 #if wxUSE_UNICODE_UTF8
 299     #if wxUSE_UTF8_LOCALE_ONLY
 300         #define WX_VARARG_VFOO_IMPL(args, implW, implA)              \
 301             return implA args
 302     #else
 303         #define WX_VARARG_VFOO_IMPL(args, implW, implA)              \
 304             if ( wxLocaleIsUtf8 ) return implA args;                 \
 305             else return implW args
 306     #endif
 307 #elif wxUSE_UNICODE_WCHAR
 308     #define WX_VARARG_VFOO_IMPL(args, implW, implA)                  \
 309         return implW args
 310 #else // ANSI
 311     #define WX_VARARG_VFOO_IMPL(args, implW, implA)                  \
 312         return implA args
 313 #endif
 314
 315 inline int
 316 wxVprintf(const wxString& format, va_list ap)
 317 {
 318     WX_VARARG_VFOO_IMPL((wxFormatString(format), ap),
 319                         wxCRT_VprintfW, wxCRT_VprintfA);
 320 }
 321
 322 inline int
 323 wxVfprintf(FILE *f, const wxString& format, va_list ap)
 324 {
 325     WX_VARARG_VFOO_IMPL((f, wxFormatString(format), ap),
 326                         wxCRT_VfprintfW, wxCRT_VfprintfA);
 327 }
 328
 329 #undef WX_VARARG_VFOO_IMPL
 330
 331
 332 // wxSprintf() and friends have to be implemented in two forms, one for
 333 // writing to char* buffer and one for writing to wchar_t*:
 334
 335 #if !wxUSE_UTF8_LOCALE_ONLY
 336 int WXDLLIMPEXP_BASE wxDoSprintfWchar(char *str, const wxChar *format, ...);
 337 #endif
 338 #if wxUSE_UNICODE_UTF8
 339 int WXDLLIMPEXP_BASE wxDoSprintfUtf8(char *str, const char *format, ...);
 340 #endif
 341 WX_DEFINE_VARARG_FUNC(int, wxSprintf, 2, (char*, const wxFormatString&),
 342                       wxDoSprintfWchar, wxDoSprintfUtf8)
 343
 344 int WXDLLIMPEXP_BASE
 345 wxVsprintf(char *str, const wxString& format, va_list argptr);
 346
 347 #if !wxUSE_UTF8_LOCALE_ONLY
 348 int WXDLLIMPEXP_BASE wxDoSnprintfWchar(char *str, size_t size, const wxChar *format, ...);
 349 #endif
 350 #if wxUSE_UNICODE_UTF8
 351 int WXDLLIMPEXP_BASE wxDoSnprintfUtf8(char *str, size_t size, const char *format, ...);
 352 #endif
 353 WX_DEFINE_VARARG_FUNC(int, wxSnprintf, 3, (char*, size_t, const wxFormatString&),
 354                       wxDoSnprintfWchar, wxDoSnprintfUtf8)
 355
 356 int WXDLLIMPEXP_BASE
 357 wxVsnprintf(char *str, size_t size, const wxString& format, va_list argptr);
 358
 359 #if wxUSE_UNICODE
 360
 361 #if !wxUSE_UTF8_LOCALE_ONLY
 362 int WXDLLIMPEXP_BASE wxDoSprintfWchar(wchar_t *str, const wxChar *format, ...);
 363 #endif
 364 #if wxUSE_UNICODE_UTF8
 365 int WXDLLIMPEXP_BASE wxDoSprintfUtf8(wchar_t *str, const char *format, ...);
 366 #endif
 367 WX_DEFINE_VARARG_FUNC(int, wxSprintf, 2, (wchar_t*, const wxFormatString&),
 368                       wxDoSprintfWchar, wxDoSprintfUtf8)
 369
 370 int WXDLLIMPEXP_BASE
 371 wxVsprintf(wchar_t *str, const wxString& format, va_list argptr);
 372
 373 #if !wxUSE_UTF8_LOCALE_ONLY
 374 int WXDLLIMPEXP_BASE wxDoSnprintfWchar(wchar_t *str, size_t size, const wxChar *format, ...);
 375 #endif
 376 #if wxUSE_UNICODE_UTF8
 377 int WXDLLIMPEXP_BASE wxDoSnprintfUtf8(wchar_t *str, size_t size, const char *format, ...);
 378 #endif
 379 WX_DEFINE_VARARG_FUNC(int, wxSnprintf, 3, (wchar_t*, size_t, const wxFormatString&),
 380                       wxDoSnprintfWchar, wxDoSnprintfUtf8)
 381
 382 int WXDLLIMPEXP_BASE
 383 wxVsnprintf(wchar_t *str, size_t size, const wxString& format, va_list argptr);
 384
 385 #endif // wxUSE_UNICODE
 386
 387 #ifdef __WATCOMC__
 388     // workaround for http://bugzilla.openwatcom.org/show_bug.cgi?id=351
 389     //
 390     // fortunately, OpenWatcom implements __VA_ARGS__, so we can provide macros
 391     // that cast the format argument to wxString:
 392     #undef wxPrintf
 393     #undef wxFprintf
 394     #undef wxSprintf
 395     #undef wxSnprintf
 396
 397     #define wxPrintf(fmt, ...) \
 398             wxPrintf_Impl(wxFormatString(fmt), __VA_ARGS__)
 399     #define wxFprintf(f, fmt, ...) \
 400             wxFprintf_Impl(f, wxFormatString(fmt), __VA_ARGS__)
 401     #define wxSprintf(s, fmt, ...) \
 402             wxSprintf_Impl(s, wxFormatString(fmt), __VA_ARGS__)
 403     #define wxSnprintf(s, n, fmt, ...) \
 404             wxSnprintf_Impl(s, n, wxFormatString(fmt), __VA_ARGS__)
 405 #endif // __WATCOMC__
 406
 407
 408 // We can't use wxArgNormalizer<T> for variadic arguments to wxScanf() etc.
 409 // because they are writable, so instead of providing friendly template
 410 // vararg-like functions, we just provide both char* and wchar_t* variants
 411 // of these functions. The type of output variadic arguments for %s must match
 412 // the type of 'str' and 'format' arguments.
 413 //
 414 // For compatibility with earlier wx versions, we also provide wxSscanf()
 415 // version with the first argument (input string) wxString; for this version,
 416 // the type of output string values is determined by the type of format string
 417 // only.
 418
 419 #define _WX_SCANFUNC_EXTRACT_ARGS_1(x)   x
 420 #define _WX_SCANFUNC_EXTRACT_ARGS_2(x,y) x, y
 421 #define _WX_SCANFUNC_EXTRACT_ARGS(N, args) _WX_SCANFUNC_EXTRACT_ARGS_##N args
 422
 423 #define _WX_VARARG_PASS_WRITABLE(i) a##i
 424
 425 #define _WX_DEFINE_SCANFUNC(N, dummy1, name, impl, passfixed, numfixed, fixed)\
 426     template<_WX_VARARG_JOIN(N, _WX_VARARG_TEMPL)>                            \
 427     int name(_WX_SCANFUNC_EXTRACT_ARGS(numfixed, fixed),                      \
 428              _WX_VARARG_JOIN(N, _WX_VARARG_ARG))                              \
 429     {                                                                         \
 430         return  impl(_WX_SCANFUNC_EXTRACT_ARGS(numfixed, passfixed),          \
 431                      _WX_VARARG_JOIN(N, _WX_VARARG_PASS_WRITABLE));           \
 432     }
 433
 434 #define WX_DEFINE_SCANFUNC(name, numfixed, fixed, impl, passfixed)            \
 435     _WX_VARARG_ITER(_WX_VARARG_MAX_ARGS,                                      \
 436                     _WX_DEFINE_SCANFUNC,                                      \
 437                     dummy1, name, impl, passfixed, numfixed, fixed)
 438
 439 // this is needed to normalize the format string, see src/common/strvararg.cpp
 440 // for more details
 441 #ifdef __WINDOWS__
 442     #define wxScanfConvertFormatW(fmt) fmt
 443 #else
 444     const wxScopedWCharBuffer
 445     WXDLLIMPEXP_BASE wxScanfConvertFormatW(const wchar_t *format);
 446 #endif
 447
 448 WX_DEFINE_SCANFUNC(wxScanf, 1, (const char *format),
 449                    wxCRT_ScanfA, (format))
 450 WX_DEFINE_SCANFUNC(wxScanf, 1, (const wchar_t *format),
 451                    wxCRT_ScanfW, (wxScanfConvertFormatW(format)))
 452
 453 WX_DEFINE_SCANFUNC(wxFscanf, 2, (FILE *stream, const char *format),
 454                    wxCRT_FscanfA, (stream, format))
 455 WX_DEFINE_SCANFUNC(wxFscanf, 2, (FILE *stream, const wchar_t *format),
 456                    wxCRT_FscanfW, (stream, wxScanfConvertFormatW(format)))
 457
 458 WX_DEFINE_SCANFUNC(wxSscanf, 2, (const char *str, const char *format),
 459                    wxCRT_SscanfA, (str, format))
 460 WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wchar_t *str, const wchar_t *format),
 461                    wxCRT_SscanfW, (str, wxScanfConvertFormatW(format)))
 462 WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxScopedCharBuffer& str, const char *format),
 463                    wxCRT_SscanfA, (str.data(), format))
 464 WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxScopedWCharBuffer& str, const wchar_t *format),
 465                    wxCRT_SscanfW, (str.data(), wxScanfConvertFormatW(format)))
 466 WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxString& str, const char *format),
 467                    wxCRT_SscanfA, (str.mb_str(), format))
 468 WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxString& str, const wchar_t *format),
 469                    wxCRT_SscanfW, (str.wc_str(), wxScanfConvertFormatW(format)))
 470 WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxCStrData& str, const char *format),
 471                    wxCRT_SscanfA, (str.AsCharBuf(), format))
 472 WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxCStrData& str, const wchar_t *format),
 473                    wxCRT_SscanfW, (str.AsWCharBuf(), wxScanfConvertFormatW(format)))
 474
 475 // Visual C++ doesn't provide vsscanf()
 476 #ifndef __VISUALC___
 477 int WXDLLIMPEXP_BASE wxVsscanf(const char *str, const char *format, va_list ap);
 478 int WXDLLIMPEXP_BASE wxVsscanf(const wchar_t *str, const wchar_t *format, va_list ap);
 479 int WXDLLIMPEXP_BASE wxVsscanf(const wxScopedCharBuffer& str, const char *format, va_list ap);
 480 int WXDLLIMPEXP_BASE wxVsscanf(const wxScopedWCharBuffer& str, const wchar_t *format, va_list ap);
 481 int WXDLLIMPEXP_BASE wxVsscanf(const wxString& str, const char *format, va_list ap);
 482 int WXDLLIMPEXP_BASE wxVsscanf(const wxString& str, const wchar_t *format, va_list ap);
 483 int WXDLLIMPEXP_BASE wxVsscanf(const wxCStrData& str, const char *format, va_list ap);
 484 int WXDLLIMPEXP_BASE wxVsscanf(const wxCStrData& str, const wchar_t *format, va_list ap);
 485 #endif // !__VISUALC__
 486
 487 #endif /* _WX_WXCRTVARARG_H_ */