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29 lines
439 B
Swift
29 lines
439 B
Swift
// RUN: %swift -i %s | FileCheck %s
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func double(x:Int) -> Int {
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return x+x
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}
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func curriedSubtract(x:Int)(y:Int) -> Int {
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return x-y
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}
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func twice(f:(Int) -> Int, x:Int) -> Int {
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return f(f(x))
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}
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// CHECK: 4
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println(double(2))
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// CHECK: 8
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println(double(4))
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// CHECK: 12
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println(curriedSubtract(16)(4))
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// CHECK: 20
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println(twice(double, 5))
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// CHECK: 7
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println(twice({ $0 + 1 }, 5))
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// CHECK: 3
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println(twice({ |x| x - 1 }, 5))
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