C++ templates vs. Ada generics?

C++ templates vs. Ada generics?

[Dale Stanbrough]

A few times posts in this group have indicated that C++ templates
allow you to do things that can't be done by Ada generics, but
this comes at the cost of link time checking (and possible
rejection by the linker) for what are in essence generic contract
model violations.

Is this correct, and does anyone have any examples of what can be
achieved in C++ templates, but not Ada generics?


Dale

Re: C++ templates vs. Ada generics?

[Ray Blaak]

Dale Stanbrough <dale@goanna.cs.rmit.EDU.AU> writes:

>[...] does anyone have any examples of what can be
>achieved in C++ templates, but not Ada generics?

On the fly instantiations (i.e. as a parameter to a function). Technically this
does not provide any extra ability, but it can be wonderfully succinct,
especially for one-time uses of the instantiation.

Cheers,
Ray Blaak

Re: C++ templates vs. Ada generics?

[David Weller]

In article <4qbtid$bsq@map.mda.ca>, Ray Blaak <blaak@mda.ca> wrote:
>Dale Stanbrough <dale@goanna.cs.rmit.EDU.AU> writes:
>>[...] does anyone have any examples of what can be
>>achieved in C++ templates, but not Ada generics?
>On the fly instantiations (i.e. as a parameter to a function). Technically this
>does not provide any extra ability, but it can be wonderfully succinct,
>especially for one-time uses of the instantiation.
>


Hmm, I don't understand how you _can't_ do this.  Admittedly, I'd have
to enclose it in a block, but that's trivial compared to the "Butt
Ugly" syntax of C++ templates (you may quote me :-)

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