[swift-evolution] [Pitch] Int / Int returns Quotient-Remainder Tuple
daniel.j.stenmark at gmail.com
Mon Feb 13 18:03:22 CST 2017
(I get the feeling the response to this pitch will be overwhelming negative, but *deep inhale* here I go!)
A common mistake I see programmers make is dividing two integers and expecting a floating-point result. This mostly affect new programmers who haven't learned about ALUs yet, but I sometimes even see veterans make the mistake when they don't realize that neither operand they're passing is floating-point.
let foo = 17 / 5
print( foo ) // Huh, why is this 3 and not 3.4? Oh, wait, I'm an idiot.
I'd like to propose we make '/' operator on two Ints return a quotient-remainder tuple by default. This should help both new and veteran programmers alike write less error-prone code.
let (quotient, remainder) = 17 / 5
print( "Q:\(quotient) R:\(remainder)" ) // Idiot-proof!
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