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[SR-4800] Float.init?(exactly: UInt32) does not return nil for UInt32.max or other un-representable values #47377

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phausler opened this issue May 4, 2017 · 3 comments
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[SR-4800] Float.init?(exactly: UInt32) does not return nil for UInt32.max or other un-representable values #47377

phausler opened this issue May 4, 2017 · 3 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. standard library Area: Standard library umbrella

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@phausler
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phausler commented May 4, 2017

Previous ID SR-4800
Radar None
Original Reporter @phausler
Type Bug
Status Resolved
Resolution Duplicate
Additional Detail from JIRA
Votes 0
Component/s Standard Library
Labels Bug
Assignee None
Priority Medium

md5: 474eb7c2645dc27de8d19a97365fd3c7

duplicates:

  • SR-4634 Error in exact floating point initializers

Issue Description:

        let u1 = UInt32.max
        let u2 = UInt32.max - 1
        
        let f1 = Float(u1)
        let f2 = Float(u2)
        
        let f3 = Float(exactly: u1) // should be nil but isn't
        let f4 = Float(exactly: u2) // should be nil but isn't
@phausler
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phausler commented May 4, 2017

likely a duplicate of SR-4634

@belkadan
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belkadan commented May 5, 2017

cc @moiseev

@xwu
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xwu commented Feb 14, 2018

Looks like this was resolved by Nate in #12739.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. standard library Area: Standard library umbrella
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@xwu @phausler @belkadan