I've seen references on the web to an "override" keyword that allows the compiler to check method signatures are the same where intended, ie. instead of creating a new virtual function when a subclasses override method no longer matches the superclass. (Microsoft compilers.) This would be a very good api enhancement.
http://msdn.microsoft.com/en-us/library/41w3sh1c.aspx eg.: struct I1 { virtual void f(); }; struct X : public I1 { virtual void f() override {} }; -- Summary: Support c++ override keyword Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: slime at apple dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36796
