---
title: Local Variable Storage Duration
framework: objectivec
role: collectionGroup
path: objectivec/local-variable-storage-duration
---

# Local Variable Storage Duration

This macro indicates that the values stored in certain local variables should not be aggressively released by the compiler during optimization.

## Topics

### Constants

- [NS_VALID_UNTIL_END_OF_SCOPE](foundation/ns_valid_until_end_of_scope.md)

## See Also

### Constants

- [Boolean Values](objectivec/boolean-values.md)
- [Null Values](objectivec/null-values.md)
- [Dispatch Function Prototypes](objectivec/dispatch-function-prototypes.md)
- [Objective-C Root Class](objectivec/objective-c-root-class.md)