---
title: OS_TRACE_TYPE_DEBUG
framework: os
role: symbol
role_heading: Global Variable
path: os/os_trace_type_debug
---

# OS_TRACE_TYPE_DEBUG

Trace messages that occur when a debugger is attached.

## Declaration

```swift
var OS_TRACE_TYPE_DEBUG: UInt32 { get }
```

## See Also

### Deprecated Macros

- [OS_TRACE_TYPE_INFO](os/os_trace_type_info.md)
- [OS_TRACE_TYPE_RELEASE](os/os_trace_type_release.md)