🚀 go-pugleaf

The sproc man page says:

    int sproc (void (*entry) (void *), unsigned inh, ...);

     Type of optional third argument:
     void *arg;

and later

        If created via sproc the new process will be invoked as follows:

                    entry(void *arg)

But it doesn't say what happens if `arg' was not passed.

Is there a standard SGI trick to detect the presence of a single optional argument?
I guess what this means is that the new process is called with stack trash otherwise, right?

Thanks in advance,

-- 
Fernando D. Mato Mira			 http://ligwww.epfl.ch/matomira.html
Computer Graphics Lab                         	
Swiss Federal Institute of Technology (EPFL)  Phone    : +41 (21) 693 - 5248
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