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12 lines
317 B
Swift
12 lines
317 B
Swift
//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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public extension Collection {
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/// Returns the element at the specified index iff it is within bounds, otherwise nil.
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public subscript (safe index: Index) -> Element? {
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return indices.contains(index) ? self[index] : nil
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}
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}
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