X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/934960d133573e7ddbb5be4ea3804dd16a486291..3e97a905185a72c04a7feb67c7885ab4412100ee:/include/wx/wxcrtvararg.h

diff --git a/include/wx/wxcrtvararg.h b/include/wx/wxcrtvararg.h
index 9a9aa4cc5a..77ffc5f0d7 100644
--- a/include/wx/wxcrtvararg.h
+++ b/include/wx/wxcrtvararg.h
@@ -31,9 +31,12 @@
 /* printf() family saga */
 
 /*
-   For some systems [v]snprintf() exists in the system libraries but not in the
-   headers, so we need to declare it ourselves to be able to use it.
+   For many old Unix systems [v]snprintf()/vsscanf() exists in the system
+   libraries but not in the headers, so we need to declare it ourselves to be
+   able to use it.
  */
+#ifdef __UNIX__
+
 #if defined(HAVE_VSNPRINTF) && !defined(HAVE_VSNPRINTF_DECL)
 #ifdef __cplusplus
     extern "C"
@@ -52,6 +55,15 @@
     int snprintf(char *str, size_t size, const char *format, ...);
 #endif /* !HAVE_SNPRINTF_DECL */
 
+#if defined(HAVE_VSSCANF) && !defined(HAVE_VSSCANF_DECL)
+#ifdef __cplusplus
+    extern "C"
+#else
+    extern
+#endif
+    int vsscanf(const char *str, const char *format, va_list ap);
+#endif /* !HAVE_VSSCANF_DECL */
+
 /* Wrapper for vsnprintf if it's 3rd parameter is non-const. Note: the
  * same isn't done for snprintf below, the builtin wxSnprintf_ is used
  * instead since it's already a simple wrapper */
@@ -62,13 +74,24 @@
     }
 #endif
 
+#endif /* __UNIX__ */
+
 /*
-   MinGW MSVCRT has non-standard vswprintf() (for MSVC compatibility
-   presumably) and normally _vsnwprintf() is used instead
+   mingw32 normally uses MSVCRT which has non-standard vswprintf() and so
+   normally _vsnwprintf() is used instead, the only exception is when mingw32
+   is used with STLPort which does have a standard vswprintf() starting from
+   version 5.1 which we can use.
  */
-#if defined(HAVE_VSWPRINTF) && defined(__MINGW32__)
-    #undef HAVE_VSWPRINTF
-#endif
+#ifdef __MINGW32__
+    #if defined(_STLPORT_VERSION) && _STLPORT_VERSION >= 0x510
+        #ifndef HAVE_VSWPRINTF
+            #define HAVE_VSWPRINTF
+        #endif
+    #elif defined(HAVE_VSWPRINTF)
+        /* can't use non-standard vswprintf() */
+        #undef HAVE_VSWPRINTF
+    #endif
+#endif /* __MINGW32__ */
 
 #if defined(__WATCOMC__)
     #define HAVE_VSWPRINTF 1
@@ -187,6 +210,9 @@
 #if wxUSE_UNICODE && !defined(wxHAVE_TCHAR_SUPPORT) && !defined(HAVE_WPRINTF)
     #define wxNEED_WPRINTF
 #endif
+#if wxUSE_UNICODE && !defined(wxHAVE_TCHAR_SUPPORT) && !defined(HAVE_VSWSCANF)
+    #define wxNEED_VSWSCANF
+#endif
 
 
 #if defined(wxNEED_WPRINTF)
@@ -205,7 +231,7 @@
     #define wxCRT_PrintfW       wprintf
     #define wxCRT_VfprintfW     vfwprintf
     #define wxCRT_VprintfW      vwprintf
-    
+
     #if defined(__WINDOWS__) && !defined(HAVE_VSWPRINTF)
         // only non-standard vswprintf() without buffer size argument can be used here
         #define  wxCRT_VsprintfW     vswprintf
@@ -223,26 +249,15 @@
     int wxCRT_ScanfW(const wchar_t *format, ...);
     int wxCRT_SscanfW(const wchar_t *str, const wchar_t *format, ...);
     int wxCRT_FscanfW(FILE *stream, const wchar_t *format, ...);
-    int wxCRT_VsscanfW(const wchar_t *str, const wchar_t *format, va_list ap);
-#else
-#ifdef __VMS
-#if (__DECCXX_VER >= 70100000) && !defined(__STD_CFRONT) && !defined( __NONAMESPACE_STD )
-# define wxCRT_ScanfW     std::wscanf
-# define wxCRT_SscanfW    std::swscanf
-# define wxCRT_FscanfW    std::fwscanf
-# define wxCRT_VsscanfW   std::vswscanf
 #else
-    #define wxCRT_ScanfW     wscanf
-    #define wxCRT_SscanfW    swscanf
-    #define wxCRT_FscanfW    fwscanf
-    #define wxCRT_VsscanfW   vswscanf
+    #define wxCRT_ScanfW     wxVMS_USE_STD wscanf
+    #define wxCRT_SscanfW    wxVMS_USE_STD swscanf
+    #define wxCRT_FscanfW    wxVMS_USE_STD fwscanf
 #endif
+#ifdef wxNEED_VSWSCANF
+    int wxCRT_VsscanfW(const wchar_t *str, const wchar_t *format, va_list ap);
 #else
-    #define wxCRT_ScanfW     wscanf
-    #define wxCRT_SscanfW    swscanf
-    #define wxCRT_FscanfW    fwscanf
-    #define wxCRT_VsscanfW   vswscanf
-#endif
+    #define wxCRT_VsscanfW   wxVMS_USE_STD vswscanf
 #endif
 
 // ----------------------------------------------------------------------------