Objective-C test snippets

unionSet.m

// unionSet respects counted set counts

#import <Foundation/Foundation.h>

int main (int argc, const char * argv[])
{

    @autoreleasepool {
        
        NSCountedSet* cSet = [NSCountedSet set];

        [cSet addObject:@"Yo"];
        id obj = @"Ho";
        [cSet addObject:obj];
        [cSet addObject:obj];
        [cSet addObject:@"Bottle of Rum"];
        
        NSLog(@"Pre-union %@", cSet);
        
        NSSet* set = [NSSet setWithObjects:@"Hi", @"Hi", obj, @"Hum", nil];
        
        [cSet unionSet:set];
        
        NSLog(@"Post-union %@", cSet);
        
        
        [cSet unionSet:cSet];
        NSLog(@"Post self-union: %@", cSet);
        
    }
    return 0;
}