---
title: au_mask_t
framework: Kernel
role: symbol
role_heading: Structure
platforms: [macOS 10.3+]
path: kernel/au_mask_t
---

# au_mask_t

## Declaration

```occ
typedef struct au_mask {
    ...
} au_mask_t;
```

## Topics

### Instance Properties

- [am_failure](kernel/au_mask_t/1520321-am_failure.md)
- [am_success](kernel/au_mask_t/1520191-am_success.md)