Created
January 4, 2012 00:17
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NSArray Predicates
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| #import <Foundation/NSArray.h> | |
| @interface NSArray (Predicates) | |
| - (NSArray *)arrayOfObjectsPassingTest:(BOOL (^)(id obj, NSUInteger idx, BOOL *stop))predicate; | |
| - (NSArray *)arrayOfObjectsWithOptions:(NSEnumerationOptions)opts passingTest:(BOOL (^)(id obj, NSUInteger idx, BOOL *stop))predicate; | |
| @end |
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| @implementation NSArray (Predicates) | |
| - (NSArray *)arrayOfObjectsPassingTest:(BOOL (^)(id obj, NSUInteger idx, BOOL *stop))predicate | |
| { | |
| NSIndexSet *indexes = [self indexesOfObjectsPassingTest:predicate]; | |
| return [self objectsAtIndexes:indexes]; | |
| } | |
| - (NSArray *)arrayOfObjectsWithOptions:(NSEnumerationOptions)opts passingTest:(BOOL (^)(id obj, NSUInteger idx, BOOL *stop))predicate | |
| { | |
| NSIndexSet *indexes = [self indexesOfObjectsWithOptions:opts passingTest:predicate]; | |
| return [self objectsAtIndexes:indexes]; | |
| } | |
| @end |
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