---
title: Dispatch Function Prototypes
framework: objectivec
role: collectionGroup
role_heading: API Collection
path: objectivec/dispatch-function-prototypes
---

# Dispatch Function Prototypes

This macro indicates whether dispatch functions must be cast to an appropriate function pointer type.

## Topics

### Constants

- [OBJC_OLD_DISPATCH_PROTOTYPES](objectivec/objc_old_dispatch_prototypes.md)