Why are random generated numbers UInt-32 by default in Swift?

Question

I stumbled upon the fact that when a random number is generated in Swift, it is of type UInt32 by default instead of type Int

What's the reason?

score 3 · Answer 1 · answered Mar 15 '18 at 07:08

3

I suspect you are referring to arc4random. This function returns UInt32 because the underlying C function (also called arc4random) returns uint32_t, which is the C equivalent of Swift's UInt32.

answered Mar 15 '18 at 07:08

rob mayoff

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score 1 · Answer 2 · answered Mar 15 '18 at 06:55

1

I would assume it makes it faster. If you want Int random numbers take a look at GKRandomSource in the game kit, https://developer.apple.com/documentation/gameplaykit/gkrandomsource

answered Mar 15 '18 at 06:55

Joakim Danielson

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Why are random generated numbers UInt-32 by default in Swift?

2 Answers2