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# Objective-C Garbage Collection

Interface with the legacy garbage collection system.

## Topics

### Legacy

[`NSGarbageCollector`](/documentation/Foundation/NSGarbageCollector)

A convenient interface to the garbage collection system.

[`NSAllocateCollectable`](/documentation/Foundation/NSAllocateCollectable)

Allocates collectable memory.

[`NSReallocateCollectable`](/documentation/Foundation/NSReallocateCollectable)

Reallocates collectable memory.

[`NSMakeCollectable`](/documentation/Foundation/NSMakeCollectable)

Makes a newly allocated Core Foundation object eligible for collection.

[Memory Allocation Options](/documentation/Foundation/1539826-memory-allocation-options)

Constants used to control behavior when allocating or reallocating collectible memory.


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