Subj : Re: returning arguments
To   : comp.programming.threads
From : Sergey P. Derevyago
Date : Fri Jul 01 2005 04:25 pm

David Butenhof wrote:
> To (perhaps) make this more clear... technically, there's exactly ONE
> return value from a thread. But the TYPE of that value is "void*"
> (pointer). You can carry any pointer type in that "void* container". On
> most contemporary mainstream systems you can get away with carrying any
> scalar type x with sizeof(x) <= sizeof(void*).
>
	IMHO it should be explicitly noted that passing arbitrary scalar values as
pointer values is not standard conforming:

3.7.3.2p4 of ISO/IEC 14882:2003(E)
The effect of using an invalid pointer value ... is undefined (On some
implementations, it causes a system-generated runtime fault).
--
         With all respect, Sergey.               http://ders.angen.net/
         mailto : ders at skeptik.net

.