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# GSS_C_SUPPLEMENTARY_MASK

A mask with a width that matches the supplementary information field.

```
var GSS_C_SUPPLEMENTARY_MASK: UInt { get }
```

## Discussion

Shift the mask to the left by [`GSS_C_SUPPLEMENTARY_OFFSET`](/documentation/GSS/GSS_C_SUPPLEMENTARY_OFFSET) to put it in the correct position within the major status code to match the supplementary information field. The [`GSS_SUPPLEMENTARY_INFO`](/documentation/GSS/GSS_SUPPLEMENTARY_INFO) macro does this for you, before bitwise `AND`ing with its input.

---

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