How do I detect if an object implements NSFastEnumeration protocol in Objective-C?

Question

I want to use fast enumeration on an object of type id.

Basically I'm missing the check here:

id object = <get object form somewhere>;
if( <check if object implements fast enumeration> )
    for (id item in id<NSFastEnumeration>object)
        <process item>

Answer 1

Something like this:

BOOL canBeFast = [yourCollection conformsToProtocol:@protocol(NSFastEnumeration)];