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# SparseRetain(_:)

Increases the reference count on a single-precision subfactor object.

```
func SparseRetain(_ Subfactor: SparseOpaqueSubfactor_Float) -> SparseOpaqueSubfactor_Float
```

## Parameters

`Subfactor`

The subfactor object to increase the reference count upon.

## Return Value

The supplied numeric subfactor object.

---

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