On 03/21/2013 02:15 PM, Sven Barth wrote:
If we put accounting the reference counting aspect then interfaces are
exactly what it says on the tin: a interface (German: Schnittstelle)
to a class.
I see.
I once saw an algebra done with certain objects using operator
overloading and interfaces. (e.g. Matrix algebra, or operations
introduced on file-based objects). Here reference counting /
auto-creation / auto deletion is very useful.
Now FPC and Delphi add two additional concepts to this:
* reference counting for interfaces (in FPC only those that are not
declared after a {$interfaces corba} directive)
Yep.
* the ability to delegate the implementation of the interface to a
different class (using the "implements" keyword)
To allow for a kind of multiple inheritance, I supple.
-Michael
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