it's not. Chromes first paid bug was an overflow issue. Like you I had always used it so I wrote code like this if (intA + intB < intA) { // stop be

it's not. Chromes first paid bug was an overflow issue. Like you I had always used it so I wrote code like this if (intA + intB < intA) { // stop becasue overflow } else { // do thing } this worked until a new compiler took advantage of the fact that overflow is undefined so the check always failed allowing exploit