Hi Tom, > If you can show me rewrites of all the basic arithmetic operations that > detect overflow in full compliance with the C standard, and are > readable, portable, and efficient, I'm all ears.
These are the best ones that I know of: https://www.securecoding.cert.org/confluence/display/seccode/INT32-C.+Ensure+that+operations+on+signed+integers+do+not+result+in+overflow Even if you dislike these, please take a look at the safety checks for shifts. The current postgresql shift functions need to be strengthened, and it is easy to do. John Regehr -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
