General tidy-up (mainly typecasts) to allow the use of the SGI native

compilers (tested on Irix 6.5 with -mips3 -n32).


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@623 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/textfile.h

@@ -97,7 +97,7 @@ public:
 
       default:
         wxFAIL_MSG("bad file type in wxTextFile::GetEOL.");
-        return NULL;
+        return (const char *) NULL;
     }
   }