Re: Fastest way to check for int32 overflows

[e]

I keep this CMU SEI bookmark 
<https://wiki.sei.cmu.edu/confluence/display/c/INT32-C.+Ensure+that+operations+on+signed+integers+do+not+result+in+overflow>_
 as a reference for whenever I need to deal with overflow in C... it's probably 
useful for safe cross platform Nim coding, too.