protocols-classes-collections.m

#import <Foundation/Foundation.h>

int main(int argc, char *argv[]) {
	@autoreleasepool {
		NSMapTable *table = [NSMapTable strongToWeakObjectsMapTable];
		[table setObject:@"foo" forKey:@protocol(NSCopying)];
		[table setObject:@"bar" forKey:[NSString class]];
		NSLog(@"%@", table);
	}
}