[swift-corelibs-dev] Query on init methods in Data.swift

[Tony Parker]

Hi Simon,

The correct one is the non-optional version. We changed it after some discussion about if it made sense for Data to attempt to return nil here, when there are so many ways for memory allocation to fail without returning an optional.

We’re working on updating the swift-corelibs-foundation API to match the overlay over the next few weeks.

- Tony

> On Aug 2, 2016, at 9:27 AM, Simon Evans via swift-corelibs-dev <swift-corelibs-dev at swift.org> wrote:
> 
> Hi
> 
> I was looking at Data.swift and noticed that 2 of the init methods
> were different in corelibs-foundation v swift stdlib
> 
> https://github.com/apple/swift-corelibs-foundation/blob/master/Foundation/Data.swift has
> 
> public init?(capacity: Int)
> public init?(count: Int)
> 
> https://github.com/apple/swift/blob/master/stdlib/public/SDK/Foundation/Data.swift has
> 
> public init(capacity: Int)
> public init(count: Int)
> 
> 
> Which are the correct method signatures? I was just doing a PR to fix
> init?(count:) not zeroing the data and I wanted to make sure I had this
> correct as well
> 
> Thanks
> Simon
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