Re: So-called toll free bridged classes

FROM : Eric Peyton
DATE : Thu Nov 21 09:00:18 2002

> How much can I rely on NS* being actually cast-able to CF* objects?
>


It is guaranteed by CoreFoundation and Foundation.  It is a design goal 
that is explicitly stated in the Foundation and CoreFoundation notes.

See

http://developer.apple.com/techpubs/macosx/Essentials/CarbonCocoaDoc/
cci_chap2/Interchange__Data_Types.html

You can find all of this information by going to developer.apple.com 
and entering "Toll free" in the search box ...

Eric

> Is this a documented design goal that can be expected for the futur, 
> or a fluke caused by the separation of what has become the Core 
> Foundation from the Cocoa private implementation?
>
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> Martin-Gilles Lavoie
> http://www.oracle.com
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