Some changes in UnsafeBufferPointer to improve performance #2676
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| @@ -57,6 +57,83 @@ public struct Unsafe${Mutable}BufferPointer<Element> | |||
| return count | |||
| } | |||
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| public func index(after i: Int) -> Int { | |||
| // NOTE: this is a manual specialization of index movement for a Strideable | |||
| // index that is required for Array performance. The optimizer is not | |||
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s/Array/UnsafeBufferPointer/
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LGTM modulo the comment. |
The statement "if x == nil { }" involves creating an Optional.none for the RHS and calling the == function.
…ter. This improves performance, especially for -Onone.
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