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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift Collections open source project
//
// Copyright (c) 2021 - 2024 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
//
//===----------------------------------------------------------------------===//
extension Range where Bound: FixedWidthInteger {
@inlinable
internal func _clampedToUInt() -> Range<UInt> {
if upperBound <= 0 {
return Range<UInt>(uncheckedBounds: (0, 0))
}
if lowerBound >= UInt.max {
return Range<UInt>(uncheckedBounds: (UInt.max, UInt.max))
}
let lower = lowerBound < 0 ? 0 : UInt(lowerBound)
let upper = upperBound > UInt.max ? UInt.max : UInt(upperBound)
return Range<UInt>(uncheckedBounds: (lower, upper))
}
@inlinable
internal func _toUInt() -> Range<UInt>? {
guard
let lower = UInt(exactly: lowerBound),
let upper = UInt(exactly: upperBound)
else {
return nil
}
return Range<UInt>(uncheckedBounds: (lower: lower, upper: upper))
}
}
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