John Regehr wrote:
> 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.
Added to TODO:
Consider improving overflow detection
*
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Bruce Momjian <[email protected]> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ None of us is going to be here forever. +
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