---
title: Memory Allocation Options
framework: foundation
role: collectionGroup
role_heading: API Collection
path: foundation/1539826-memory-allocation-options
---

# Memory Allocation Options

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

## Overview

Overview These constants are used as components in a bitfield to specify the behavior of NSAllocateCollectable and NSReallocateCollectable.

## Topics

### Constants

- [NSScannedOption](foundation/nsscannedoption.md)
- [NSCollectorDisabledOption](foundation/nscollectordisabledoption.md)

## See Also

### Legacy