🚀 go-pugleaf

In article <4fbg7p$9u7@solutions.solon.com>, Herman Rubin
<hrubin@stat.purdue.edu> writes
>In article <4fa7gv$2te@solutions.solon.com>,
>HASDI RODZMANN HASHIM <hasdi@engin.umich.edu> wrote:
>>So far I have come across three ways of returning multiple values
>>from a C function. 

[snip]

>>I don't really have that much experience in C, so I would appreaciate
>>some pointers on which approach to use as well as their pros and cons.
>
>The problem is not unique to C; I know of NO language which does even
>a fair job of this.

Not even:

   (defun foo ()
      (list fooval1 fooval2))     ;)

To try and keep a 'C' tone on this, if you really must return 2 values,
you could always try:

int *Cfoo()
{
        static int rval[2];

        rval[0] = fooval1;
        rval[1] = fooval2;

        return rval;
}

Then call with

int *returned;

returned = Cfoo();

Add a suitable number of const keywords to taste ...

The downside is the cost in static storage, however, so don't use it
frequently for large numbers of return values.

--
Graham Coles           |      e-mail: graham@scitec.demon.co.uk
Sci-Tec Software       |      flames: bill@microsoft.com     :)