error C2666: 'operator ==' : 2 overloads have similar conversions

Change-Id: I94b54586477ae0cad3b5351953cccffffecbf902
diff --git a/starmath/source/document.cxx b/starmath/source/document.cxx
index 1e41db8..254677f 100644
--- a/starmath/source/document.cxx
+++ b/starmath/source/document.cxx
@@ -506,7 +506,8 @@ SmCursor& SmDocShell::GetCursor(){

SmPrinterAccess::SmPrinterAccess( SmDocShell &rDocShell )
{
    if ( 0 != (pPrinter = rDocShell.GetPrt()) )
    pPrinter = rDocShell.GetPrt();
    if ( pPrinter )
    {
        pPrinter->Push( PushFlags::MAPMODE );
        if ( SfxObjectCreateMode::EMBEDDED == rDocShell.GetCreateMode() )