Dmitriy Novozhilov
17 lines
444 B
Kotlin
Vendored
17 lines
444 B
Kotlin
Vendored
// FIR_IDENTICAL
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// JDK_KIND: FULL_JDK_9
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// WITH_STDLIB
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import java.util.stream.IntStream
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fun foo(s: IntStream) {
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val n = 1000000000
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val delta = 1.0 / n
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val startTimeNanos = System.nanoTime()
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val pi = 4.0 * delta * s.mapToDouble { i ->
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val x = (i - 0.5) * delta
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1.0 / (1.0 + x * x)
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}.sum()
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val elapseTime = (System.nanoTime() - startTimeNanos) / 1e9
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println("Parallel Streams $pi $n $elapseTime")
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}
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