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46 lines
1.0 KiB
Swift
46 lines
1.0 KiB
Swift
// RUN: %target-run-simple-swift-swift3 | %FileCheck %s
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// REQUIRES: executable_test
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func fib() {
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var (a, b) = (0, 1)
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while b < 10 {
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print(b)
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(a, b) = (b, a+b)
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}
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}
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fib()
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// CHECK: 1
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// CHECK: 1
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// CHECK: 2
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// CHECK: 3
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// CHECK: 5
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// CHECK: 8
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// From: <rdar://problem/17796401>
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// FIXME: <rdar://problem/21993692> type checker too slow
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let two_oneA = [1, 2, 3, 4].lazy.reversed()
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let two_one = Array(two_oneA.filter { $0 % 2 == 0 }.map { $0 / 2 })
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print(two_one)
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// CHECK: [2, 1]
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// rdar://problem/18208283
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func flatten<Element, Seq: Sequence, InnerSequence: Sequence
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where Seq.Iterator.Element == InnerSequence, InnerSequence.Iterator.Element == Element> (_ outerSequence: Seq) -> [Element] {
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var result = [Element]()
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for innerSequence in outerSequence {
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result.append(contentsOf: innerSequence)
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}
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return result
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}
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// CHECK: [1, 2, 3, 4, 5, 6]
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let flat = flatten([[1,2,3], [4,5,6]])
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print(flat)
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// rdar://problem/19416848
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func observe<T:Sequence, V where V == T.Iterator.Element>(_ g:T) { }
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observe(["a":1])
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