Andrew Stubbs wrote: > On 02/07/09 14:34, Richard Guenther wrote: >> No, that's invalid. You would have to do >> >> extern union { >> void *foo; >> short *bar; >> }; >> >> using the union for the double-indirect pointer doesn't help. Or >> simply use memcpy to store to foo. > > Ah, I did not know that. I still don't understand how a reference to a > memory location that happens to contain a pointer is different to one > what contains other data?
It's easy enough to find out: just look at the C standard. 6.3.2.3, Pointers. Andrew.