---
title: "addDebugMarker(_:range:)"
framework: metal
role: symbol
role_heading: Instance Method
path: "metal/mtlbuffer/adddebugmarker(_:range:)"
---

# addDebugMarker(_:range:)

Adds a debug marker string to a specific buffer range.

## Declaration

```swift
func addDebugMarker(_ marker: String, range: Range<Int>)
```

## Parameters

- `marker`: A string that identifies the marked buffer range.
- `range`: The range of bytes that you want to identify.

## See Also

### Debugging buffers

- [removeAllDebugMarkers()](metal/mtlbuffer/removealldebugmarkers().md)