alt Hacker NewsThere are lots of better ways of doing this, but knowing why this one is bad/wrong requires the mental model described upthread.
(But also, what you describe would be incorrect, since two <MAX values can add to a value that is >MAX, and overflow)
There are lots of better ways of doing this, but knowing why this one is bad/wrong requires the mental model described upthread.
(But also, what you describe would be incorrect, since two <MAX values can add to a value that is >MAX, and overflow)
> But also, what you describe would be incorrect, since two <MAX values can add to a value that is >MAX, and overflow
I was maybe unclear. I meant, if you know a sum can introduce overflow (because you have a check right after), why not check the inputs before doing the sum, instead of checking the sum?