[omochi@omochi-iMac int]$ swift -Ounchecked a.swift -3 4294967293 21474836470 -10
var a: Int32 = -3 print(a) var b: UInt32 = UInt32(a) print(b) var c: Int64 = Int64(Int32.max) * Int64(10) print(c) var d: Int32 = Int32(c) print(d)