---
title: priority_queue_compare_fn_t
framework: Kernel
role: symbol
role_heading: Type Alias
platforms: [macOS 11.0+]
path: kernel/priority_queue_compare_fn_t
---

# priority_queue_compare_fn_t

## Declaration

```occ
typedef int (^priority_queue_compare_fn_t)(struct priority_queue_entry *e1, struct priority_queue_entry *e2);
```