Re: C++ interface

From: E. Robert Tisdale (E.Robert.Tisdale_at_jpl.nasa.gov)
Date: 12/23/03 

Date: Tue, 23 Dec 2003 09:37:41 -0800

The Directive wrote:

> Is there a way in C++ to create a "true" interface. I want to create
> an absract class that other classes can inherit from and be forced to
> implement the interface's abstract (pure virtual) methods. However, it
> has to be a true interface in that it doesn't add any overhead (when
> the derived object is created) with the interface's constructors and
> destructor because they don't exist for the interface. Does that make
> sense? I just want an interface, not all the OOP stuff like
> constructors, destructor and etc. In other words, I don't want the
> interface's (system default or user defined) constructors & destructor
> to be called.

A good optimizing C++ compiler should not add any overhead.
Can you show us an example where your C++ compiler adds such overhead?

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