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Revert https://github.com/apple/swift/pull/66838 #67071

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Merged
merged 1 commit into from
Jul 3, 2023
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Revert https://github.com/apple/swift/pull/66838 #67071

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13 changes: 4 additions & 9 deletions stdlib/public/core/RangeReplaceableCollection.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -453,15 +453,10 @@ extension RangeReplaceableCollection {
@inlinable
public mutating func append<S: Sequence>(contentsOf newElements: __owned S)
where S.Element == Element {

let done:Void? = newElements.withContiguousStorageIfAvailable {
replaceSubrange(endIndex..<endIndex, with: $0)
}

if done == nil {
for element in newElements {
append(element)
}
let approximateCapacity = self.count + newElements.underestimatedCount
self.reserveCapacity(approximateCapacity)
for element in newElements {
append(element)
}
}

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