---
title: au_expire_after_t
framework: Kernel
role: symbol
role_heading: Structure
platforms: [macOS 10.14+]
path: kernel/au_expire_after_t
---

# au_expire_after_t

## Declaration

```occ
typedef struct au_expire_after {
    ...
} au_expire_after_t;
```

## Topics

### Instance Properties

- [age](kernel/au_expire_after_t/2967319-age.md)
- [op_type](kernel/au_expire_after_t/2977280-op_type.md)
- [size](kernel/au_expire_after_t/2967320-size.md)