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From: Stephen Leake <Stephen.A.Leake@nasa.gov>
Newsgroups: comp.lang.ada
Subject: Re: generic type identification
Date: 06 Jan 2003 12:56:13 -0500
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David Holm <david@realityrift.com> writes:

> It is a thick binding to OpenGL. In case you have never seen the OpenGL API 
> it has one procedure for every type you can access it with.

Bindings are supposed to be hard to write and easy to use; your effort
writing the binding saves zillions of people effort in using them :).
We appreciate it!

> 
> For instance, glVertex has 24 different declarations depending on
> whether you use (C) floats, doubles, integers, shorts etc and
> whether your send it an array of 2, 3 or 4 coordinates with any of
> these types. 

Overloaded procedures is the right way to go here; one Ada procedure
for each C procedure.

> I was hoping to be able to create one interface for this in Ada
> (possibly by using generic instead of overloading every procedure).

You would need a real binding generator to do this automatically.

> 
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=8903101703.AA04518%40ti.com

too much overhead. 

-- 
-- Stephe