On Jul 26, 2015, at 17:42 , Rick Mann <rm...@latencyzero.com> wrote:
> 
> So, why can I do this?
> 
> let n : NSNumber = M_PI

That’s bridged, not converted. :)

The Swift compiler has built-in knowledge of what can be bridged, and does a 
typecast or value conversion according to context.

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