[swift-evolution] [Review] SE-0055 Make unsafe pointer nullability explicit using Optional

[Jordan Rose]

> On Mar 26, 2016, at 9:15, Антон Жилин via swift-evolution <swift-evolution at swift.org> wrote:
> 
> But we currently have a terser form, and it's arguably clear from it that Pointer can be null.

For the record, I literally talked to someone last week who didn't know that UnsafePointer can be null. :-) They thought we'd already implemented this and there was a bug in the importer.

> Overall, separating strongly connected concepts and then tying them together using compiler magic just can't have a reasonable explanation. ~0x0 in UnsafeBufferPointer is utterly rediculous.


I'm not sure what this comment refers to. Can you explain?

Jordan
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