On 12/01/12 03:48, Jonathan M Davis wrote: > On Saturday, December 01, 2012 03:05:00 js.mdnq wrote: >> Let O be an object with opCast overridden, then >> >> >> writeln(O); //prints string >> writeln(cast(void *)O)) // error, works fine if I comment out the >> opCast override >> writeln(&O) // address of pointer to O, not what I want. >> >> I want to compare a few objects based on their location. (I know >> this is bad because of the GC, but I will probably pin them if I >> go this route) >> >> It seems I have a difficult time getting the original behavior >> when something is syntactically overridden in D. I understand the >> point of cast(void *) not working when opCast is overridden but I >> then do not know how to still get the address. >> >> Any Ideas? > > For the moment, you're probably screwed. Certainly, if you overload opCast, > then none of the normal casts work any more, which is a definite bug: > > http://d.puremagic.com/issues/show_bug.cgi?id=5747 > > So, unless there's a way to do it without a cast, you're stuck. And I have no > idea how you could possibly do it without a cast.
*cast(void**)&O // assuming O is a class artur
