Boszormenyi Zoltan <z...@cybertec.at> writes: > for (; length > 0 && ptr[--length] == 0xff;);
> I suspect that GCC does the "--length" after checking > "length > 0" and before checking the "ptr[...] == 0xff", > but HP CC does it before checking "length > 0". If it does, that is *unquestionably* a bug in HP's CC and should be reported to them. However, the code is sufficiently unreadable to be worth rewriting anyhow. Your suggestion is an improvement but personally I'd plump for int i; for (i = 0; i < length; i++) if (ptr[i] != 0xff) return false; return true; regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers