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Asked: 2026-05-14T23:06:20+00:00

I was messing with my Objective-C++ namespace today. I found that Handle, Size and

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I was messing with my Objective-C++ namespace today.

I found that Handle, Size and Duration are already defined in ObjC++. What are they defined to be and where are they defined?

I have only #imported Foundation/Foundation.h

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  1. Editorial Team

    MacTypes.h

    typedef char *                          Ptr;
typedef Ptr *                           Handle;
typedef long                            Size;
typedef SInt32                          Duration;

    These all predate Carbon. They having nothing to do with Cocoa even though they fill up the namespace.

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