Ex 15.10 my solution

[iseeumhmm]

Code: (Objective-C)

//
//  main.m
//  Ex15
//
//  Created by Richard Heffren on 11-11-30.
//  Copyright (c) 2011 __MyCompanyName__. All rights reserved.
//

#import <Foundation/Foundation.h>
#define intig(x) [NSNumber numberWithInt:(x)]

int main (int argc, const char * argv[])
{
    NSAutoreleasePool   *pool = [[NSAutoreleasePool alloc] init];
    
    NSArray             *nums = [[NSArray alloc] initWithObjects: 
                                 intig(1), intig(1), intig(1), intig(2), intig(3), intig(3), nil];

    NSCountedSet        *freq = [[NSCountedSet alloc] initWithArray: nums];
    NSEnumerator        *enumerator = [freq objectEnumerator];
    id object;
    
    while (object = [enumerator nextObject]) {
        NSLog(@"%@ was added %lu times", object, [freq countForObject: object]);
    }
    
    [nums release];
    [freq release];
    [pool drain];
    return 0;
}