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[wxWidgets.git] / include / wx / wxchar.h

/////////////////////////////////////////////////////////////////////////////
// Name:        wxchar.h
// Purpose:     Declarations common to wx char/wchar_t usage (wide chars)
// Author:      Joel Farley
// Modified by:
// Created:     1998/06/12
// RCS-ID:      $Id$
// Copyright:   (c) wxWindows copyright
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_WXCHAR_H_
#define _WX_WXCHAR_H_

#ifdef __GNUG__
    #pragma interface "wxchar.h"
#endif

// only do SBCS or _UNICODE
#if defined (_MBCS )
// It may be OK anyway.
// #  error "MBCS is not supported by wxChar"
#endif

// ----------------------------------------------------------------------------
// first deal with Unicode setting
// ----------------------------------------------------------------------------

// set wxUSE_UNICODE to 1 if UNICODE or _UNICODE is defined
#if defined(_UNICODE) || defined(UNICODE)
#  undef wxUSE_UNICODE
#  define wxUSE_UNICODE 1
#else
#  ifndef wxUSE_UNICODE
#    define wxUSE_UNICODE 0
#  endif
#endif // Unicode

// and vice versa: define UNICODE and _UNICODE if wxUSE_UNICODE is 1...
#if wxUSE_UNICODE
#  ifndef _UNICODE
#    define _UNICODE
#  endif
#  ifndef UNICODE
#    define UNICODE
#  endif
#endif // Unicode

// Unicode support requires wchar_t
#if wxUSE_UNICODE
#   undef wxUSE_WCHAR_T
#   define wxUSE_WCHAR_T 1
#endif // Unicode

// ----------------------------------------------------------------------------
// define wxHAVE_TCHAR_FUNCTIONS for the compilers which support the
// wide-character functions
// ----------------------------------------------------------------------------

#ifdef __WIN32__
    // VC++ and BC++ starting with 5.2 have TCHAR support
    #ifdef __VISUALC__
        #define wxHAVE_TCHAR_FUNCTIONS
    #elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x520)
        #define wxHAVE_TCHAR_FUNCTIONS
    #elif defined(__MINGW32__) && wxCHECK_W32API_VERSION( 1, 0 )
        #define wxHAVE_TCHAR_FUNCTIONS
        #include <stddef.h>
        #include <string.h>
        #include <ctype.h>
    #elif defined(__CYGWIN__)
        #define HAVE_WCSLEN
        #include <stddef.h>
        #include <wchar.h>
    #endif
#elif defined(__VISAGECPP__) && (__IBMCPP__ >= 400)
    // VisualAge 4.0+ supports TCHAR
    #define wxHAVE_TCHAR_FUNCTIONS

    // but not stdio.h nor time nor conversion functions
    #define wxNO_TCHAR_STDIO
    #define wxNO_TCHAR_STDLIB
    #define wxNO_TCHAR_TIME
    #define wxNO_TCHAR_LOCALE
    //
    // supplemental VA V4 defs so at least we know what these are
    // just define to standard defs
    //

    // for wcslen
    #include <wchar.h>

    // locale.h functons -- not defined in tchar.h
    #define  wxSetlocale setlocale
    // some stdio functions are defined others are not
    // these are not
    #define  wxFgetchar  fgetchar
    #define  wxFopen     fopen
    #define  wxFputchar  fputchar
    #define  wxFreopen   freopen
    #define  wxGets      gets
    #define  wxPerror    perror
    #define  wxPuts      puts
    #define  wxRemove    remove
    #define  wxRename    rename
    #define  wxTmpnam    tmpnam
    #define  wxUngetc    ungetc
    #define  wxVsscanf   vsscanf
    // stdlib not defined in VA V4
    #if !wxUSE_UNICODE
    #  define  wxAtof      atof
    #endif
    #define  wxAtoi      atoi
    #define  wxAtol      atol
    #define  wxGetenv    getenv
    #define  wxSystem    system
    // time.h functions  -- none defined in tchar.h
    #define  wxAsctime   asctime
    #define  wxCtime     ctime
#elif defined(__MWERKS__)
    // for wcslen
    #if wxUSE_WCHAR_T
    #include <wchar.h>
    #endif
#endif // compilers with (good) TCHAR support

#ifdef wxHAVE_TCHAR_FUNCTIONS
#  define HAVE_WCSLEN 1

#  include <tchar.h>

#  if wxUSE_UNICODE // temporary - preserve binary compatibility
#if defined(__GNUWIN32__)
    #define _TCHAR   TCHAR
    #define _TSCHAR  TCHAR
    #define _TUCHAR  TCHAR
#endif

typedef  _TCHAR      wxChar;
typedef  _TSCHAR     wxSChar;
typedef  _TUCHAR     wxUChar;
#  else
#    define wxChar char
#    define wxSChar signed char
#    define wxUChar unsigned char
#  endif

    // wchar_t is available
    #ifndef wxUSE_WCHAR_T
        #define wxUSE_WCHAR_T 1
    #endif // !defined(wxUSE_WCHAR_T)

   // ctype.h functions
#ifndef wxNO_TCHAR_CTYPE
#ifdef __BORLANDC__
#  include <ctype.h>
#endif
#  define  wxIsalnum   _istalnum
#  define  wxIsalpha   _istalpha
#  define  wxIsctrl    _istctrl
#  define  wxIsdigit   _istdigit
#  define  wxIsgraph   _istgraph
#  define  wxIslower   _istlower
#  define  wxIsprint   _istprint
#  define  wxIspunct   _istpunct
#  define  wxIsspace   _istspace
#  define  wxIsupper   _istupper
#  define  wxIsxdigit  _istxdigit
#  define  wxTolower   _totlower
#  define  wxToupper   _totupper
#endif // wxNO_TCHAR_CTYPE

   // locale.h functons
#ifndef wxNO_TCHAR_LOCALE
#  define  wxSetlocale _tsetlocale
#endif // wxNO_TCHAR_LOCALE

   // string.h functions
#ifndef wxNO_TCHAR_STRING
#  define  wxStrcat    _tcscat
#  define  wxStrchr    _tcschr
#  define  wxStrcmp    _tcscmp
#  define  wxStrcoll   _tcscoll
#  define  wxStrcpy    _tcscpy
#  define  wxStrcspn   _tcscspn
#  define  wxStrftime  _tcsftime
#  define  wxStricmp   _tcsicmp
#  define  wxStrnicmp  _tcsnicmp
#  define  wxStrlen_   _tcslen // used in wxStrlen inline function
#  define  wxStrncat   _tcsncat
#  define  wxStrncmp   _tcsncmp
#  define  wxStrncpy   _tcsncpy
#  define  wxStrpbrk   _tcspbrk
#  define  wxStrrchr   _tcsrchr
#  define  wxStrspn    _tcsspn
#  define  wxStrstr    _tcsstr
#  define  wxStrtod    _tcstod
#  define  wxStrtol    _tcstol
#  define  wxStrtoul   _tcstoul
#  define  wxStrxfrm   _tcsxfrm
#endif // wxNO_TCHAR_STRING

   // stdio.h functions
#ifndef wxNO_TCHAR_STDIO
#  if wxUSE_UNICODE_MSLU
#    define  wxRemove    wxMSLU__tremove
#    define  wxRename    wxMSLU__trename
#  else
#    define  wxRemove    _tremove
#    define  wxRename    _trename
#  endif
#  define  wxFgetc     _fgettc
#  define  wxFgetchar  _fgettchar
#  define  wxFgets     _fgetts
#  define  wxFopen     _tfopen
#  define  wxFputc     _fputtc
#  define  wxFputchar  _fputtchar
#  define  wxFprintf   _ftprintf
#  define  wxFreopen   _tfreopen
#  define  wxFscanf    _ftscanf
#  define  wxGetc      _gettc
#  define  wxGetchar   _gettchar
#  define  wxGets      _getts
#  define  wxPerror    _tperror
#  define  wxPrintf    _tprintf
#  define  wxPutc      _puttc
#  define  wxPutchar   _puttchar
#  define  wxPuts      _putts
#  define  wxScanf     _tscanf
#  define  wxSprintf   _stprintf
#  define  wxSscanf    _stscanf
#  define  wxTmpnam    _ttmpnam
#  define  wxUngetc    _tungetc
#  define  wxVfprint   _vftprintf
#  define  wxVprintf   _vtprintf
#  define  wxVsscanf   _vstscanf
#  define  wxVsprintf  _vstprintf
#elif defined(__VISAGECPP__) && (__IBMCPP__ >= 400)
    // it has some stdio.h functions, apparently
#  define  wxFgetc     _fgettc
#  define  wxFgets     _fgetts
#  define  wxFputc     _fputtc
#  define  wxFprintf   _ftprintf
#  define  wxFscanf    _ftscanf
#  define  wxGetc      _gettc
#  define  wxGetchar   _gettchar
#  define  wxPrintf    _tprintf
#  define  wxPutc      _puttc
#  define  wxPutchar   _puttchar
#  define  wxScanf     _tscanf
#  define  wxSprintf   _stprintf
#  define  wxSscanf    _stscanf
#  define  wxVfprint   _vftprintf
#  define  wxVprintf   _vtprintf
#  define  wxVsprintf  _vstprintf
#endif // wxNO_TCHAR_STDIO

   // stdlib.h functions
#ifndef wxNO_TCHAR_STDLIB
#  if !wxUSE_UNICODE
#    define  wxAtof    atof
#  endif
#  define  wxAtoi      _ttoi
#  define  wxAtol      _ttol
#  define  wxGetenv    _tgetenv
#  define  wxSystem    _tsystem
#endif // wxNO_TCHAR_STDLIB

   // time.h functions
#ifndef wxNO_TCHAR_TIME
#  define  wxAsctime   _tasctime
#  define  wxCtime     _tctime
#endif // wxNO_TCHAR_TIME

#else // !TCHAR-aware compilers

// check whether we should include wchar.h or equivalent
#  if !defined(wxUSE_WCHAR_T)
#    if defined(__VISUALC__) && (__VISUALC__ < 900)
#      define wxUSE_WCHAR_T 0 // wchar_t is not available for MSVC++ 1.5
#    elif defined(__UNIX__)
#      if defined(HAVE_WCSTR_H) || defined(HAVE_WCHAR_H) || defined(__FreeBSD__) || defined(__DARWIN__)
#        define wxUSE_WCHAR_T 1
#      else
#        define wxUSE_WCHAR_T 0
#      endif
#    elif defined(__GNUWIN32__) && !defined(__MINGW32__) // Cygwin (not Mingw32) doesn't have wcslen.h, needed in buffer.h
#      define wxUSE_WCHAR_T 0
#    elif defined(__BORLANDC__) // WIN16 BC++
#      define wxUSE_WCHAR_T 0
#    elif defined(__WATCOMC__)
#      define wxUSE_WCHAR_T 0
#    elif defined(__VISAGECPP__) && (__IBMCPP__ < 400)
#      define wxUSE_WCHAR_T 0
#    else
  // add additional compiler checks if this fails
#      define wxUSE_WCHAR_T 1
#    endif
#  endif // !defined(wxUSE_WCHAR_T)

#  if wxUSE_WCHAR_T
#    ifdef HAVE_WCSTR_H
#      include <wcstr.h>
#    else
#      if defined(HAVE_WCHAR_H)

// include wchar.h to get wcslen() declaration used by wx/buffer.h
#        include <wchar.h>

#      elif defined(__FreeBSD__) || defined(__DARWIN__) || defined(__EMX__)

// include stdlib.h for wchar_t, wcslen is provided in wxchar.cpp
#        include <stdlib.h>
size_t   WXDLLEXPORT wcslen(const wchar_t *s);

#      endif
#    endif
#  endif

// check whether we are doing Unicode
#  if wxUSE_UNICODE

#    include <wctype.h>

// this is probably glibc-specific
#    if defined(__WCHAR_TYPE__)

typedef __WCHAR_TYPE__          wxChar;
typedef signed __WCHAR_TYPE__   wxSChar;
typedef unsigned __WCHAR_TYPE__ wxUChar;

#      define _T(x)                   L##x

       // ctype.h functions (wctype.h)
#      define  wxIsalnum   iswalnum
#      define  wxIsalpha   iswalpha
#      define  wxIsctrl    iswcntrl
#      define  wxIsdigit   iswdigit
#      define  wxIsgraph   iswgraph
#      define  wxIslower   iswlower
#      define  wxIsprint   iswprint
#      define  wxIspunct   iswpunct
#      define  wxIsspace   iswspace
#      define  wxIsupper   iswupper
#      define  wxIsxdigit  iswxdigit

#      if defined(__GLIBC__) && (__GLIBC__ == 2) && (__GLIBC_MINOR__ == 0)
       // /usr/include/wctype.h incorrectly declares translations tables which
       // provokes tons of compile-time warnings - try to correct this
#        define  wxTolower(wc)   towctrans((wc), (wctrans_t)__ctype_tolower)
#        define  wxToupper(wc)   towctrans((wc), (wctrans_t)__ctype_toupper)
#      else
#        define  wxTolower   towlower
#        define  wxToupper   towupper
#      endif // gcc/!gcc

       // string.h functions (wchar.h)
#      define  wxStrcat    wcscat
#      define  wxStrchr    wcschr
#      define  wxStrcmp    wcscmp
#      define  wxStrcoll   wcscoll
#      define  wxStrcpy    wcscpy
#      define  wxStrcspn   wcscspn
#      define  wxStrlen_   wcslen // used in wxStrlen inline function
#      define  wxStrncat   wcsncat
#      define  wxStrncmp   wcsncmp
#      define  wxStrncpy   wcsncpy
#      define  wxStrpbrk   wcspbrk
#      define  wxStrrchr   wcsrchr
#      define  wxStrspn    wcsspn
#      define  wxStrstr    wcsstr
#      define  wxStrtod    wcstod
#      define  wxStrtok    wcstok
#      define  wxStrtol    wcstol
#      define  wxStrtoul   wcstoul
#      define  wxStrxfrm   wcsxfrm

// glibc doesn't have wc equivalents of the other stuff
#      define wxNEED_WX_STDIO_H
#      define wxNEED_WX_STDLIB_H
#      define wxNEED_WX_TIME_H

#    else//!glibc
#      error   "Please define your compiler's Unicode conventions in wxChar.h"
#    endif
#  else//!Unicode

#    include <ctype.h>
#    include <string.h>

#   if 0 // temporary - preserve binary compatibilty
        typedef char            wxChar;
        typedef signed char     wxSChar;
        typedef unsigned char   wxUChar;
#   else
#     define wxChar char
#     define wxSChar signed char
#     define wxUChar unsigned char
#   endif

#   if defined(__FreeBSD__) || defined(__DARWIN__)
#     undef _T
#   endif

#   if !defined(__MINGW32__) || !defined(_T)
#     define _T(x)           x
#   endif

     // ctype.h functions
#   define  wxIsalnum   isalnum
#   define  wxIsalpha   isalpha
#   define  wxIsctrl    isctrl
#   define  wxIsdigit   isdigit
#   define  wxIsgraph   isgraph
#   define  wxIslower   islower
#   define  wxIsprint   isprint
#   define  wxIspunct   ispunct
#   define  wxIsspace   isspace
#   define  wxIsupper   isupper
#   define  wxIsxdigit  isxdigit
#   define  wxTolower   tolower
#   define  wxToupper   toupper

    // locale.h functons
#   define  wxSetlocale setlocale

    // string.h functions
    // #define  wxStricmp   strcasecmp
    // wxStricmp is defined below!!

    #ifdef HAVE_STRTOK_R
        #define  wxStrtok(str, sep, last)    strtok_r(str, sep, last)
    #else
        #define  wxStrtok(str, sep, last)    strtok(str, sep)
    #endif

     // leave the rest to defaults below
#   define wxNEED_WX_STRING_H
#   define wxNEED_WX_STDIO_H
#   define wxNEED_WX_STDLIB_H
#   define wxNEED_WX_TIME_H

#  endif//Unicode
#endif//TCHAR-aware compilers

// define wxStricmp for various compilers without Unicode possibilities
#if !defined(wxStricmp) && !wxUSE_UNICODE
#  if defined(__BORLANDC__) || defined(__WATCOMC__) || defined(__SALFORDC__) || defined(__VISAGECPP__) || defined(__EMX__) || defined(__DJGPP__)
#    define wxStricmp stricmp
#    define wxStrnicmp strnicmp
#  elif defined(__SC__) || defined(__VISUALC__) || (defined(__MWERKS__) && defined(__INTEL__))
#    define wxStricmp _stricmp
#    define wxStrnicmp _strnicmp
#  elif defined(__UNIX__) || defined(__GNUWIN32__)
#    define wxStricmp strcasecmp
#    define wxStrnicmp strncasecmp
#  elif defined(__MWERKS__) && !defined(__INTEL__)
     // use wxWindows' implementation
#  else
     // if you leave wxStricmp undefined, wxWindows' implementation will be used
#    error  "Please define string case-insensitive compare for your OS/compiler"
#  endif
#endif

// if we need to define for standard headers, and we're not using Unicode,
// just define to standard C library routines
#if !wxUSE_UNICODE
#  ifdef wxNEED_WX_STRING_H
#    define  wxStrcat    strcat
#    define  wxStrchr    strchr
#    define  wxStrcmp    strcmp
#    define  wxStrcoll   strcoll
#    define  wxStrcpy    strcpy
#    define  wxStrcspn   strcspn
#if !defined(__MWERKS__) || !defined(__WXMAC__)
#    define  wxStrdup    strdup
#endif
#    define  wxStrlen_   strlen // used in wxStrlen inline function
#    define  wxStrncat   strncat
#    define  wxStrncmp   strncmp
#    define  wxStrncpy   strncpy
#    define  wxStrpbrk   strpbrk
#    define  wxStrrchr   strrchr
#    define  wxStrspn    strspn
#    define  wxStrstr    strstr
#    define  wxStrtod    strtod
#    define  wxStrtol    strtol
#    define  wxStrtoul   strtoul
#    define  wxStrxfrm   strxfrm
#    undef wxNEED_WX_STRING_H
#  endif

#  ifdef wxNEED_WX_STDIO_H
#    define  wxFgetc     fgetc
#    define  wxFgetchar  fgetchar
#    define  wxFgets     fgets
#    define  wxFopen     fopen
#    define  wxFputc     fputc
#    define  wxFputchar  fputchar
#    define  wxFprintf   fprintf
#    define  wxFreopen   freopen
#    define  wxFscanf    fscanf
#    define  wxGetc      getc
#    define  wxGetchar   getchar
#    define  wxGets      gets
#    define  wxPerror    perror
#    define  wxPrintf    printf
#    define  wxPutc      putc
#    define  wxPutchar   putchar
#    define  wxPuts      puts
#    define  wxRemove    remove
#    define  wxRename    rename
#    define  wxScanf     scanf
#    define  wxSprintf   sprintf
#    define  wxSscanf    sscanf
#    define  wxTmpnam    tmpnam
#    define  wxUngetc    ungetc
#    define  wxVfprint   vfprintf
#    define  wxVprintf   vprintf
#    define  wxVsscanf   vsscanf
#    define  wxVsprintf  vsprintf
#    undef wxNEED_WX_STDIO_H
#  endif

#  ifdef wxNEED_WX_STDLIB_H
#    define  wxAtof      atof
#    define  wxAtoi      atoi
#    define  wxAtol      atol
#    define  wxGetenv    getenv
#    define  wxSystem    system
#    undef wxNEED_WX_STDLIB_H
#  endif

#  ifdef wxNEED_WX_TIME_H
#    define  wxAsctime   asctime
#    define  wxCtime     ctime
#    define  wxStrftime  strftime
#    undef wxNEED_WX_TIME_H
#  endif
#endif //!Unicode

// checks whether the passed in pointer is NULL and if the string is empty
inline bool wxIsEmpty(const wxChar *p) { return !p || !*p; }

#ifndef wxNEED_WX_STRING_H
// safe version of strlen() (returns 0 if passed NULL pointer)
inline size_t wxStrlen(const wxChar *psz)
   { return psz ? wxStrlen_(psz) : 0; }
#endif

#if wxUSE_WCHAR_T
// multibyte<->widechar conversion
WXDLLEXPORT size_t wxMB2WC(wchar_t *buf, const char *psz, size_t n);
WXDLLEXPORT size_t wxWC2MB(char *buf, const wchar_t *psz, size_t n);
#  if wxUSE_UNICODE
#    define wxMB2WX wxMB2WC
#    define wxWX2MB wxWC2MB
#    define wxWC2WX wxStrncpy
#    define wxWX2WC wxStrncpy
#  else
#    define wxMB2WX wxStrncpy
#    define wxWX2MB wxStrncpy
#    define wxWC2WX wxWC2MB
#    define wxWX2WC wxMB2WC
#  endif
#else
// No wxUSE_WCHAR_T: we have to do something (JACS)
#  define wxMB2WC wxStrncpy
#  define wxWC2MB wxStrncpy
#  define wxMB2WX wxStrncpy
#  define wxWX2MB wxStrncpy
#  define wxWC2WX wxWC2MB
#  define wxWX2WC wxMB2WC
#endif

WXDLLEXPORT bool wxOKlibc(); // for internal use

// if libc versions are not available, use replacements defined in wxchar.cpp
#ifndef wxStrdup
WXDLLEXPORT wxChar * wxStrdup(const wxChar *psz);
#endif

#ifndef wxStricmp
WXDLLEXPORT int      wxStricmp(const wxChar *psz1, const wxChar *psz2);
#endif

#ifndef wxStrnicmp
WXDLLEXPORT int      wxStrnicmp(const wxChar *psz1, const wxChar *psz2, size_t len);
#endif

#ifndef wxStrtok
WXDLLEXPORT wxChar * wxStrtok(wxChar *psz, const wxChar *delim, wxChar **save_ptr);
#endif

#ifndef wxSetlocale
class wxWCharBuffer;
WXDLLEXPORT wxWCharBuffer wxSetlocale(int category, const wxChar *locale);
#endif

#ifdef wxNEED_WX_CTYPE_H
WXDLLEXPORT int wxIsalnum(wxChar ch);
WXDLLEXPORT int wxIsalpha(wxChar ch);
WXDLLEXPORT int wxIsctrl(wxChar ch);
WXDLLEXPORT int wxIsdigit(wxChar ch);
WXDLLEXPORT int wxIsgraph(wxChar ch);
WXDLLEXPORT int wxIslower(wxChar ch);
WXDLLEXPORT int wxIsprint(wxChar ch);
WXDLLEXPORT int wxIspunct(wxChar ch);
WXDLLEXPORT int wxIsspace(wxChar ch);
WXDLLEXPORT int wxIsupper(wxChar ch);
WXDLLEXPORT int wxIsxdigit(wxChar ch);
WXDLLEXPORT int wxTolower(wxChar ch);
WXDLLEXPORT int wxToupper(wxChar ch);
#endif

#ifdef wxNEED_WX_STRING_H
WXDLLEXPORT wxChar * wxStrcat(wxChar *dest, const wxChar *src);
WXDLLEXPORT wxChar * wxStrchr(const wxChar *s, wxChar c);
WXDLLEXPORT int      wxStrcmp(const wxChar *s1, const wxChar *s2);
WXDLLEXPORT int      wxStrcoll(const wxChar *s1, const wxChar *s2);
WXDLLEXPORT wxChar * wxStrcpy(wxChar *dest, const wxChar *src);
WXDLLEXPORT size_t   wxStrcspn(const wxChar *s, const wxChar *reject);
WXDLLEXPORT size_t   wxStrlen(const wxChar *s);
WXDLLEXPORT wxChar * wxStrncat(wxChar *dest, const wxChar *src, size_t n);
WXDLLEXPORT int      wxStrncmp(const wxChar *s1, const wxChar *s2, size_t n);
WXDLLEXPORT wxChar * wxStrncpy(wxChar *dest, const wxChar *src, size_t n);
WXDLLEXPORT wxChar * wxStrpbrk(const wxChar *s, const wxChar *accept);
WXDLLEXPORT wxChar * wxStrrchr(const wxChar *s, wxChar c);
WXDLLEXPORT size_t   wxStrspn(const wxChar *s, const wxChar *accept);
WXDLLEXPORT wxChar * wxStrstr(const wxChar *haystack, const wxChar *needle);
WXDLLEXPORT double   wxStrtod(const wxChar *nptr, wxChar **endptr);
WXDLLEXPORT long int wxStrtol(const wxChar *nptr, wxChar **endptr, int base);
WXDLLEXPORT unsigned long int wxStrtoul(const wxChar *nptr, wxChar **endptr, int base);
WXDLLEXPORT size_t   wxStrxfrm(wxChar *dest, const wxChar *src, size_t n);
#endif

#ifdef wxNEED_WX_STDIO_H
#  include <stdio.h>
#  include <stdarg.h>
WXDLLEXPORT FILE *   wxFopen(const wxChar *path, const wxChar *mode);
WXDLLEXPORT FILE *   wxFreopen(const wxChar *path, const wxChar *mode, FILE *stream);
WXDLLEXPORT int      wxRemove(const wxChar *path);
WXDLLEXPORT int      wxRename(const wxChar *oldpath, const wxChar *newpath);
WXDLLEXPORT int      wxPrintf(const wxChar *fmt, ...);
WXDLLEXPORT int      wxVprintf(const wxChar *fmt, va_list argptr);
WXDLLEXPORT int      wxFprintf(FILE *stream, const wxChar *fmt, ...);
WXDLLEXPORT int      wxVfprintf(FILE *stream, const wxChar *fmt, va_list argptr);
WXDLLEXPORT int      wxSprintf(wxChar *buf, const wxChar *fmt, ...);
WXDLLEXPORT int      wxVsprintf(wxChar *buf, const wxChar *fmt, va_list argptr);
WXDLLEXPORT int      wxSscanf(const wxChar *buf, const wxChar *fmt, ...);
WXDLLEXPORT int      wxVsscanf(const wxChar *buf, const wxChar *fmt, va_list argptr);
#endif

#ifndef wxAtof
WXDLLEXPORT double   wxAtof(const wxChar *psz);
#endif

#ifdef wxNEED_WX_STDLIB_H
WXDLLEXPORT int      wxAtoi(const wxChar *psz);
WXDLLEXPORT long     wxAtol(const wxChar *psz);
WXDLLEXPORT wxChar * wxGetenv(const wxChar *name);
WXDLLEXPORT int      wxSystem(const wxChar *psz);
#endif

#ifdef wxNEED_WX_TIME_H
WXDLLEXPORT size_t   wxStrftime(wxChar *s, size_t max, const wxChar *fmt, const struct tm *tm);
#endif

// under VC++ 6.0 isspace() returns 1 for 8 bit chars which completely breaks
// the file parsing - this may be true for 5.0 as well, update #ifdef then
#if defined(__VISUALC__) && (__VISUALC__ >= 1200) && !wxUSE_UNICODE
    #undef wxIsspace
    #define wxIsspace(c) ((((unsigned)c) < 128) && isspace(c))
#endif // VC++

// ----------------------------------------------------------------------------
// common macros which are always defined
// ----------------------------------------------------------------------------

// although global macros with such names are really bad, we want to have
// another name for _T() which should be used to avoid confusion between _T()
// and _() in wxWindows sources
#define wxT(x)       _T(x)

// Unicode-friendly __FILE__, __DATE__ and __TIME__ analogs
#ifndef __TFILE__
    #define __XFILE__(x) wxT(x)
    #define __TFILE__ __XFILE__(__FILE__)
#endif

#ifndef __TDATE__
    #define __XDATE__(x) wxT(x)
    #define __TDATE__ __XDATE__(__DATE__)
#endif

#ifndef __TTIME__
    #define __XTIME__(x) wxT(x)
    #define __TTIME__ __XTIME__(__TIME__)
#endif

#endif
  //_WX_WXCHAR_H_