Vitaly Burovoy <vitaly.buro...@gmail.com> writes: > I'm sorry for the offtopic, but does anyone know a reason why a > condition in mac.c
>> if ((a < 0) || (a > 255) || (b < 0) || (b > 255) || >> (c < 0) || (c > 255) || (d < 0) || (d > 255) || >> (e < 0) || (e > 255) || (f < 0) || (f > 255)) > can not be rewritten as: >> if (((a | b | c | d | e | f) < 0) || >> ((a | b | c | d | e | f) > 255)) Well, it's ugly and it adds a bunch of assumptions about arithmetic behavior that we don't particularly need to make. If this were some amazingly hot hot-spot then maybe it would be worth making the code unreadable to save a few nanoseconds, but I doubt that it is. (Anyway, you've not shown that there actually is any benefit ...) 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