/*

    File: EnumerationSample.m

Abstract: Demonstrates various methods of enumerating over the contents of

an EnumerableClass instance.

 Version: 1.1

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*/

#import <Foundation/Foundation.h>

#import "EnumerableClass.h"

// -------------------------------------------------------------------------------

//  main()

//  Program entry point.

// -------------------------------------------------------------------------------

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

{

    @autoreleasepool

    {

        // And to demonstrate, we create an instance of our enumeration sample 

        // class and enumerate over its contents.

        EnumerableClass *example = [[EnumerableClass alloc] initWithCapacity:50];

        // Enumerate using a for loop and subscripted access.

        NSLog(@"Enumerating using a for loop...");

        for (NSUInteger i=0; i<example.numItems; i++)

        {

            NSLog(@"Item %li = %@", i, example[i]);

        }

        // Enumerate using block-based enumeration.

        NSLog(@"Enumerating using block-based enumeration...");

        [example enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {

            NSLog(@"Item %li = %@", idx, obj);

        }];

        NSUInteger idx = 0;

        // Enumerate using NSEnumerator.

        NSLog(@"Enumerating using NSEnumerator...");

        NSEnumerator *enumerator = [example objectEnumerator];

        id currentObject;

        while ((currentObject = [enumerator nextObject]))

        {

            NSLog(@"Item %li = %@", idx++, currentObject);

        }

        // Enumerate using fast enumeration.

        NSLog(@"Enumerating using fast enumeration...");

        idx = 0;

        for(id item in example)

        {

            NSLog(@"Item %li = %@", idx++, item);

        }

    }

    return 0;

}