| fun box(): String { | |
| val c1: Char = Char.MIN_VALUE | |
| val c2 = c1 - 1 | |
| if (c2 < c1) return "fail: Char.MIN_VALUE - 1 should overflow to positive." | |
| val c3: Char = Char.MAX_VALUE | |
| val c4 = c3 + 1 | |
| if (c4 > c3) return "fail: Char.MAX_VALUE + 1 should overflow to zero." | |
| return "OK" | |
| } |