> One problem I ran into considering 'char *volatile' was this one:
> the compiler is supposed to disable certain optimizations involving
> registerization and such, but isn't it still allowed to do constant
> folding?
No. That would be a bug. gcc used to have volatile bugs, most of
them are now gone. Please submit a bug report, if you can discover it
again.
I assume you meant something like this:
char * volatile cp;
main() {
return cp - cp;
}
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