| fun less1(a: Double, b: Double) = a.compareTo(b) == -1 |
| |
| fun less2(a: Double?, b: Double?) = a!!.compareTo(b!!) == -1 |
| |
| fun less3(a: Double?, b: Double?) = a != null && b != null && a.compareTo(b) == -1 |
| |
| fun less4(a: Double?, b: Double?) = if (a is Double && b is Double) a.compareTo(b) == -1 else null!! |
| |
| fun less5(a: Any?, b: Any?) = if (a is Double && b is Double) a.compareTo(b) == -1 else null!! |
| |
| fun box(): String { |
| if (!less1(-0.0, 0.0)) return "fail 1" |
| if (!less2(-0.0, 0.0)) return "fail 2" |
| if (!less3(-0.0, 0.0)) return "fail 3" |
| if (!less4(-0.0, 0.0)) return "fail 4" |
| if (!less5(-0.0, 0.0)) return "fail 5" |
| |
| return "OK" |
| } |
