On Fri, 12 Dec 2003 13:25:42 -0000 Nick Cox <[email protected]>
wrote:
> Sometimes, it is nice to be able to
> have a way round the rule and to have
> a way of passing information back
> to a calling program. (There are of course
> other ways of doing this, not least globals.)
>
> What the -c_local- does is carry out
> a macro definition in the calling program's
> space. So the -display- will show 2.
>
> Warning: this is dangerous unless you really understand it.
As described, it looks not only dangerous but pointless what happens
if pest is called from another routine without a defined kardos?
c_local looks "nowt nor summit". It looks similar to Fortran's
block equivalence and might have a marginal efficiency gain at
run-time, but such effects should be achieved by passing parameters
and returning results.
--------------------------------------------------------------
R Allan Reese Email: [email protected]
Graduate School
University of Hull
Tel +44 1482 466845 Fax: +44 1482 466436
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