/*

File: NSArray_Extensions.m

Abstract: Extensions to NSArray to handle array insertions and comparisons

Version: <1.0>

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*/ 

#import "NSArray_Extensions.h"

@implementation NSArray (MyExtensions)

// return true if objects are identical, false otherwise

- (BOOL) containsObjectIdenticalTo: (id)obj { 

    return [self indexOfObjectIdenticalTo: obj]!=NSNotFound; 

}

@end

@implementation NSMutableArray (MyExtensions)

- (void) insertObjectsFromArray:(NSArray *)array atIndex:(int)index {

    NSObject *entry = nil;

    NSEnumerator *enumerator = [array objectEnumerator];

    while ((entry=[enumerator nextObject])) {

        [self insertObject:entry atIndex:index++];

    }

}

@end