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#import <Foundation/Foundation.h> #import “NSArray(HigherOrderMessaging).h”

int main (int argc, const char * argv[]) { NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

NSMutableString *a = [NSMutableString stringWithString:@"a"], *b = [NSMutableString stringWithString:@"b"], *c = [NSMutableString stringWithString:@"c"];
NSArray *array = [[NSArray alloc] initWithObjects:a, b, c, nil];
NSString *index;


NSEnumerator *enumerator = [array objectEnumerator];
while (index = [enumerator nextObject]) {
    NSLog(index);
}


NSLog(@"Testing: -do");
array do] appendString:@"_"];

enumerator = [array objectEnumerator];
while (index = [enumerator nextObject]) {
    [[NSLog(index);
}


NSLog(@"Testing: -collect");
NSArray *anotherArray = array collect] stringByAppendingString:@"_"];

enumerator = [anotherArray objectEnumerator];
while (index = [enumerator nextObject]) {
    [[NSLog(index);
}


NSLog(@"Testing: -select");
anotherArray = array select] hasPrefix:@"a"];

enumerator = [anotherArray objectEnumerator];
while (index = [enumerator nextObject]) {
    [[NSLog(index);
}


NSLog(@"Testing: -reject");
anotherArray = array reject] hasPrefix:@"a"];

enumerator = [anotherArray objectEnumerator];
while (index = [enumerator nextObject]) {
    [[NSLog(index);
}

[array release];
[pool release];
return 0; }