Ivan Kylchik
20 lines
537 B
Kotlin
Vendored
20 lines
537 B
Kotlin
Vendored
fun equals1(a: Double, b: Double) = a.equals(b)
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fun equals2(a: Double?, b: Double?) = a!!.equals(b!!)
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fun equals3(a: Double?, b: Double?) = a != null && b != null && a.equals(b)
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fun equals4(a: Double?, b: Double?) = if (a is Double && b is Double) a.equals(b) else null!!
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fun box(): String {
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if ((-0.0).equals(0.0)) return "fail 0"
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if (equals1(-0.0, 0.0)) return "fail 1"
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if (equals2(-0.0, 0.0)) return "fail 2"
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if (equals3(-0.0, 0.0)) return "fail 3"
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if (equals4(-0.0, 0.0)) return "fail 4"
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return "OK"
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}
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