On Thu, Jan 24, 2013 at 6:36 AM, Xi Wang <xi.w...@gmail.com> wrote: > icc optimizes away the overflow check x + y < x (y > 0), because > signed integer overflow is undefined behavior in C. Instead, use > a safe precondition test x > INT_MAX - y.
I should mention gcc 4.7 does the same, and it emits a warning. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
