| fun box(): String { |
| val a1: Any = 1.toByte().plus(1) |
| val a2: Any = 1.toShort().plus(1) |
| val a3: Any = 1.plus(1) |
| val a4: Any = 1L.plus(1) |
| val a5: Any = 1.0.plus(1) |
| val a6: Any = 1f.plus(1) |
| val a7: Any = 'A'.plus(1) |
| val a8: Any = 'B'.minus('A') |
| |
| if (a1 !is Int || a1 != 2) return "fail 1" |
| if (a2 !is Int || a2 != 2) return "fail 2" |
| if (a3 !is Int || a3 != 2) return "fail 3" |
| if (a4 !is Long || a4 != 2L) return "fail 4" |
| if (a5 !is Double || a5 != 2.0) return "fail 5" |
| if (a6 !is Float || a6 != 2f) return "fail 6" |
| if (a7 !is Char || a7 != 'B') return "fail 7" |
| if (a8 !is Int || a8 != 1) return "fail 8" |
| |
| return "OK" |
| } |
