fixed bug in ParseDateFormat() with numbers with leading zeroes

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14305 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/datetime.cpp

@@ -440,7 +440,11 @@ static bool GetNumericToken(size_t len, const wxChar*& p, unsigned long *number)
             break;
     }
 
-    return !!s && s.ToULong(number);
+    // use the base 10 explicitly because otherwise the string "09" (the
+    // leading zeroes are common in the date specifications) is not parsed
+    // correctly as, according to the standard C rules, it is understood as an
+    // octal number and '9' is not a valid octal digit!
+    return !s.empty() && s.ToULong(number, 10);
 }
 
 // scans all alphabetic characters and returns the resulting string
@@ -3102,7 +3106,7 @@ const wxChar *wxDateTime::ParseDate(const wxChar *date)
 
         // is it a number?
         unsigned long val;
-        if ( token.ToULong(&val) )
+        if ( token.ToULong(&val, 10) ) // 10: see comment in GetNumericToken()
         {
             // guess what this number is