Re: Ada to Motif bindings

[Dale Stanbrough <dale@cs.rmit.edu.au>]

Glen Cornell wrote:

> Ah! A loaded question.  I wouldn't be so foolish to voice my opinion to
> the world!
> 
> I will point out that Xlib/Xt/Xm programming in Ada brings a new source
> of potential errors:
> 
> 1. Ada-c type conversions.

The family of packages Interfaces.C{.xx} provides good support for
talking to C with compatable types. Certainly roll your own bindings
would be subject to errors. Computer generated ones perhaps less so.
I generally had good experiences with the X/Motif bindings.


> 2. Ada run-time conflicts with the Xt process model.

Not quite sure what you mean here. Perhaps you could give an example.

> 3. Ada threads and the single-threaded nature of X.

Not a problem if you don't use Ada tasks, so there it is no
worse than C.

The only real area that -is- painful, is the use of variable argument
lists (XtVaAppInitialize is an example)


Dale