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[minmax] Do nothing for empty suffix/prefix. #202

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merged 2 commits into from
Oct 31, 2023
Merged

[minmax] Do nothing for empty suffix/prefix. #202

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e5ea054
[minmax] Do nothing for empty suffix/prefix.
ttsugriy Sep 8, 2023
afae761
Merge branch 'main' into minmax-empty
ttsugriy Oct 31, 2023
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16 changes: 8 additions & 8 deletions Sources/Algorithms/MinMax.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -256,14 +256,14 @@ extension Collection {
"""
)

// Make sure we are within bounds.
let prefixCount = Swift.min(count, self.count)

// Do nothing if we're prefixing nothing.
guard count > 0 else {
guard prefixCount > 0 else {
return []
}

// Make sure we are within bounds.
let prefixCount = Swift.min(count, self.count)

// If we're attempting to prefix more than 10% of the collection, it's
// faster to sort everything.
guard prefixCount < (self.count / 10) else {
Expand Down Expand Up @@ -310,14 +310,14 @@ extension Collection {
"""
)

// Make sure we are within bounds.
let suffixCount = Swift.min(count, self.count)

// Do nothing if we're suffixing nothing.
guard count > 0 else {
guard suffixCount > 0 else {
return []
}

// Make sure we are within bounds.
let suffixCount = Swift.min(count, self.count)

// If we're attempting to prefix more than 10% of the collection, it's
// faster to sort everything.
guard suffixCount < (self.count / 10) else {
Expand Down