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Date: Fri, 17 Jan 2003 09:36:49 -0500
From: Hyman Rosen <hyrosen@mail.com>
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Subject: Re: Anybody in US using ADA ? One silly idea..
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Date: 2003-01-17T09:36:49-05:00
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Richard Riehle wrote:
> Bill Findlay posted some code earlier, that I revised slightly
> to make a point in this conversation.   Here is another example
> using generics.

Yep. I already knew that the Ada generic model is different from
the C++ one. Thanks for another example illustrating why this must
be so. C++ types don't carry around little runtime bits to augment
their static information, so a C++ template instantiation is much
more of a "macro expansion" than is an Ada generic instantiation.

I can also see why Dmitry Kazakov is dubious of the benefits of
generics over dispatching, since Ada generics already seem to need
to access runtime type information. It's quite different in C++.

Very interesting. As another thread is saying, comparing different
programming languages is a good thing. You have to be pretty expert
in a language to see how apparent low-level design details spread
throughout and affect seemingly unrelated areas.