DKQueue.h

//
//  DKQueue.h
//
//  Created by Dominik Krejčík on 25/09/2011.
//  Feel free to use and distribute as long as you mention me. Or buy me a beer.

//DKQueue - FIFO (first in first out) data structure for Objective-C

#import <Foundation/Foundation.h>

@interface DKQueue : NSObject {
    NSMutableArray* array;
}

// Removes and returns the element at the front of the queue
-(id)dequeue;
// Add the element to the back of the queue
-(void)enqueue:(id)element;
// Remove all elements
-(void)enqueueElementsFromArray:(NSArray*)arr;
-(void)enqueueElementsFromQueue:(DKQueue*)queue;
-(void)clear;

// Returns the element at the front of the queue
-(id)peek;
// Returns YES if the queue is empty
-(BOOL)isEmpty;
// Returns the size of the queue
-(NSInteger)size;

@end