Andrew, Andrew Haley <[EMAIL PROTECTED]> wrote on 30.05.2008 11:45:50:
> Kai Tietz wrote: > > > as I noticed, most hash value calculations are trying to use pointer > > values for building the value and assume that a long/unsigned long scalar > > is wide enough for a pointer. This is at least for w64 target not true. So > > I want to know, if it would be good to introduce an gcc specific type for > > those kind of casts, or to use ssize_t/size_t.? > > Why would it matter? Are there any circumstances is which not using the > upper part of an address will reduce performance or break something? > First of all it matters about warnings. The native build of w64 gcc is full of 'cast from pointer to integer of different size. The second, IMHO the more important reason, is that a general type to express a host pointer scalar size would prevent such bugs as in PR/36386. Cheers, Kai | (\_/) This is Bunny. Copy and paste Bunny | (='.'=) into your signature to help him gain | (")_(") world domination.