NSHashTable Class Reference

Tasks

Initialization

• – initWithOptions:capacity:
• – initWithPointerFunctions:capacity:

Convenience Constructors

• + weakObjectsHashTable
• + hashTableWithOptions:

Accessing Content

• – allObjects
• – anyObject
• – containsObject:
• – count
• – member:
• – objectEnumerator
• – setRepresentation

Manipulating Membership

• – addObject:
• – removeAllObjects
• – removeObject:

Comparing Hash Tables

• – intersectsHashTable:
• – intersectHashTable:
• – isEqualToHashTable:
• – isSubsetOfHashTable:

Set Functions

• – minusHashTable:
• – unionHashTable:

Accessing Pointer Functions

• – pointerFunctions

Deprecated Methods

• + hashTableWithWeakObjects Deprecated in OS X v10.8

NSEnumerator *enumerator = [myHashTable objectEnumerator];

id value;

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

    /* code that acts on the hash table's values */

}

enum {
   NSHashTableStrongMemory             = 0,
   NSHashTableZeroingWeakMemory        = NSPointerFunctionsZeroingWeakMemory,
   NSHashTableCopyIn                   = NSPointerFunctionsCopyIn,
   NSHashTableObjectPointerPersonality = NSPointerFunctionsObjectPointerPersonality,
   NSHashTableWeakMemory               = NSPointerFunctionsWeakMemory
};
typedef NSUInteger NSHashTableOptions;