Better place for coordinate mirroring and removal

[wxWidgets.git] / src / common / wxchar.cpp

diff --git a/src/common/wxchar.cpp b/src/common/wxchar.cpp
index 1aeaec1b172f768a8e67135394eae75bd88d7daf..10bcd27cb4d7007742c2336e05f97922aaa84347 100644 (file)
--- a/src/common/wxchar.cpp
+++ b/src/common/wxchar.cpp
@@ -196,26 +196,34 @@ bool WXDLLEXPORT wxOKlibc()
 //     implemented later in this file using wxVsnprintf() and that would
 //     result in an endless recursion and thus in a stack overflow
 #if wxUSE_UNICODE
-
-    #if defined(__WINDOWS__)
+    #if defined(__WINDOWS__) && !defined(HAVE_SWPRINTF)
         // all compilers under Windows should have swprintf()
         #define HAVE_SWPRINTF
     #endif
-    #if defined(__WXWINCE__) || ( defined(__VISUALC__) && __VISUALC__ <= 1200 ) || defined(__GNUWIN32__)
-        #define HAVE_BROKEN_SWPRINTF_DECL
-    #endif
 
+    // NB: MSVC 6 has only non-standard swprintf() declaration and while MSVC 7
+    //     and 7.1 do have the standard one, it's completely broken unless
+    //     /Zc:wchar_t is used while the other one works so use it instead, and
+    //     only VC8 has a working standard-compliant swprintf()
+    #if defined(__WXWINCE__) || \
+        (defined(__VISUALC__) && __VISUALC__ < 1400) || \
+        defined(__GNUWIN32__) || \
+        defined(__BORLANDC__)
+        #ifndef HAVE_BROKEN_SWPRINTF_DECL
+            #define HAVE_BROKEN_SWPRINTF_DECL
+        #endif
+    #endif
 
-    // problem: on some systems swprintf takes the 'max' argument while on others
-    //          it doesn't
+    // problem: on some systems swprintf takes the 'max' argument while on
+    // others it doesn't
     #if defined(HAVE_BROKEN_SWPRINTF_DECL)
-
-        // like when using sprintf(), since 'max' is not used, wxVsnprintf() should
-        // always ensure that 'buff' is big enough for all common needs
+        // like when using sprintf(), since 'max' is not used, wxVsnprintf()
+        // should always ensure that 'buff' is big enough for all common needs
         #define system_sprintf(buff, max, flags, data)      \
             ::swprintf(buff, flags, data)
-    #else
 
+        #define SYSTEM_SPRINTF_IS_UNSAFE
+    #else
         #if !defined(HAVE_SWPRINTF)
             #error wxVsnprintf() needs a system swprintf() implementation!
         #endif
@@ -223,24 +231,24 @@ bool WXDLLEXPORT wxOKlibc()
         #define system_sprintf(buff, max, flags, data)      \
             ::swprintf(buff, max, flags, data)
     #endif
-
-#else
-
-    #if defined(HAVE_SNPRINTF)
-
+#else // !wxUSE_UNICODE
+    #if defined(__VISUALC__) || \
+            (defined(__BORLANDC__) && __BORLANDC__ >= 0x540)
+        #define system_sprintf(buff, max, flags, data)      \
+            ::_snprintf(buff, max, flags, data)
+    #elif defined(HAVE_SNPRINTF)
         #define system_sprintf(buff, max, flags, data)      \
             ::snprintf(buff, max, flags, data)
-
-    #else       // NB: at least sprintf() should *always* be available
-
-        // since 'max' is not used in this case, wxVsnprintf() should always ensure
-        // that 'buff' is big enough for all common needs
+    #else       // NB: at least sprintf() should always be available
+        // since 'max' is not used in this case, wxVsnprintf() should always
+        // ensure that 'buff' is big enough for all common needs
         // (see wxMAX_SVNPRINTF_FLAGBUFFER_LEN and wxMAX_SVNPRINTF_SCRATCHBUFFER_LEN)
         #define system_sprintf(buff, max, flags, data)      \
             ::sprintf(buff, flags, data)
 
+        #define SYSTEM_SPRINTF_IS_UNSAFE
     #endif
-#endif
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE
 
 
 
@@ -394,7 +402,7 @@ bool wxPrintfConvSpec::Parse(const wxChar *format)
 #define CHECK_PREC \
         if (in_prec && !prec_dot) \
         { \
-            m_szFlags[flagofs++] = '.'; \
+            m_szFlags[flagofs++] = wxT('.'); \
             prec_dot = true; \
         }
 
@@ -534,7 +542,7 @@ bool wxPrintfConvSpec::Parse(const wxChar *format)
             case wxT('X'):
                 CHECK_PREC
                 m_szFlags[flagofs++] = ch;
-                m_szFlags[flagofs] = '\0';
+                m_szFlags[flagofs] = wxT('\0');
                 if (ilen == 0)
                     m_type = wxPAT_INT;
                 else if (ilen == -1)
@@ -562,7 +570,7 @@ bool wxPrintfConvSpec::Parse(const wxChar *format)
             case wxT('G'):
                 CHECK_PREC
                 m_szFlags[flagofs++] = ch;
-                m_szFlags[flagofs] = '\0';
+                m_szFlags[flagofs] = wxT('\0');
                 if (ilen == 2)
                     m_type = wxPAT_LONGDOUBLE;
                 else
@@ -572,6 +580,8 @@ bool wxPrintfConvSpec::Parse(const wxChar *format)
 
             case wxT('p'):
                 m_type = wxPAT_POINTER;
+                m_szFlags[flagofs++] = ch;
+                m_szFlags[flagofs] = '\0';
                 done = true;
                 break;
 
@@ -670,7 +680,10 @@ void wxPrintfConvSpec::ReplaceAsteriskWith(int width)
     }
 
     // replace * with the actual integer given as width
-    int maxlen = (m_szFlags + wxMAX_SVNPRINTF_FLAGBUFFER_LEN - pwidth) / sizeof(wxChar);
+#ifndef SYSTEM_SPRINTF_IS_UNSAFE
+    int maxlen = (m_szFlags + wxMAX_SVNPRINTF_FLAGBUFFER_LEN - pwidth) /
+                        sizeof(wxChar);
+#endif
     int offset = system_sprintf(pwidth, maxlen, wxT("%d"), abs(width));
 
     // restore after the expanded * what was following it
@@ -729,7 +742,7 @@ bool wxPrintfConvSpec::LoadArg(wxPrintfArg *p, va_list &argptr)
             break;
 
         case wxPAT_CHAR:
-            p->pad_char = va_arg(argptr, int);  // char is promoted to int when passed through '...'
+            p->pad_char = (char)va_arg(argptr, int);  // char is promoted to int when passed through '...'
             break;
         case wxPAT_WCHAR:
             p->pad_wchar = (wchar_t)va_arg(argptr, int);  // char is promoted to int when passed through '...'
@@ -954,6 +967,10 @@ int wxPrintfConvSpec::Process(wxChar *buf, size_t lenMax, wxPrintfArg *p)
             return -1;
     }
 
+#ifdef HAVE_BROKEN_SWPRINTF_DECL
+    wxUnusedVar(lenScratch);    // avoid dummy warnings
+#endif
+
     // if we used system's sprintf() then we now need to append the s_szScratch
     // buffer to the given one...
     switch (m_type)
@@ -969,7 +986,7 @@ int wxPrintfConvSpec::Process(wxChar *buf, size_t lenMax, wxPrintfArg *p)
         case wxPAT_POINTER:
 #if wxUSE_STRUTILS
             {
-                wxASSERT(lenScratch >= 0 && lenScratch < wxMAX_SVNPRINTF_SCRATCHBUFFER_LEN);
+                wxASSERT( /* lenScratch >= 0 && */ lenScratch < wxMAX_SVNPRINTF_SCRATCHBUFFER_LEN);
                 if (lenMax < lenScratch)
                 {
                     // fill output buffer and then return -1