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That is, if we need a type MyIndex<T> to be a valid ForwardIndex, we should be able to find it in the conformance for BidirectionalIndex, which inherits from ForwardIndex. <rdar://problem/15484898> Swift SVN r11270
20 lines
389 B
Swift
20 lines
389 B
Swift
import Base
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// Instantiate Counter<Int>, relying on Counter's adoption of ForwardIndex.
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struct OneToAThousand : Indexable {
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typealias Element = Int
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typealias IndexType = Counter<Int>
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func startIndex() -> IndexType {
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return IndexType(1)
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}
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func endIndex() -> IndexType {
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return IndexType(1001)
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}
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func __getitem__(i: IndexType) -> Element {
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return i.value
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}
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}
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