Re: Confused about non-virtual functions
Robert William Vesterman <email@example.com> wrote in message news:<firstname.lastname@example.org>. ..
> I'm confused about the purpose of non-virtual functions. As I
> understand it, if you have a class E that extends a class B and
> overrides a non-virtual function f(), then the f() that actually gets
> called for an E object depends upon whether that E object is known as
> an E or as a B at the time of the call.
> I don't understand what's useful about this ambiguity in what the f()
> of an E is. Could someone please give me an example of why it would
> be useful?
The main situation where this is used is with operator=. There are
serious problems with making this virtual (think about signatures).
|All times are GMT. The time now is 01:06 AM.|
Powered by vBulletin®. Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.