I'm curious what the effect of using the overflow arithmetic operators in Swift would be. (See near bottom of https://developer.apple.com/library/prerelease/ios

I'm curious what the effect of using the overflow arithmetic operators in Swift would be. (See near bottom of https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/AdvancedOperators.html#//apple_ref/doc/uid/TP40014097-CH27-XID_28 https://developer.apple.com/library/prerelease/ios/documenta...)