🚀 go-pugleaf

In article <3vkvmm$rtt@news.cs.tu-berlin.de>,
Markus Freericks <mfx@cs.tu-berlin.de> wrote:
>Two words:
>	side effects

>- what if you _want_ one or all results to be undefined?

Give a real-world example, and I'll worry about it.

>- maybe you _want_ to store the result before doing a side effect without
>  having to resort to an auxiliary variable, as in

Yes, but at this point, you're assuming the hardware has some clever trick
for return values.  Or you're invoking "invisible overhead", which is
against the spirit of C.

>   (int ret) get-locked-int () {
>     lock();
>     ret = thingie;
>     unlock();
>     return;
>   }

Propose a way of doing this without a hidden automatic variable that will
work on all hardware.

-s
-- 
Peter Seebach - seebs@solon.com || seebs@intran.xerox.com --- C/Unix
proto-wizard -- C/Unix questions? Send mail for help.  No, really!
Copyright 1995 Peter Seebach.  Not for distribution through Microsoft Network.
a^n+b^n=c^n has integer solutions a, b, and c only for n=2.  To prove, assume