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# setAddress(_:index:)

Binds a GPU address to a buffer binding slot.

```
func setAddress(_ gpuAddress: MTLGPUAddress, index bindingIndex: Int)
```

## Parameters

`gpuAddress`

The GPU address of a [`MTLBuffer`](/documentation/Metal/MTLBuffer) to set.

`bindingIndex`

a valid binding index in the buffer binding range.
It is an error for this value to match or exceed the value of property
[`maxBufferBindCount`](/documentation/Metal/MTL4ArgumentTableDescriptor/maxBufferBindCount) on the descriptor
from which you created this argument table.

---

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