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# CGRectIsInfinite(_:)

Returns whether a rectangle is infinite.

```
func CGRectIsInfinite(_ rect: CGRect) -> Bool
```

## Parameters

`rect`

The rectangle to examine.

## Return Value

Returns <doc://com.apple.documentation/documentation/Swift/true> if the specified rectangle is infinite; otherwise, <doc://com.apple.documentation/documentation/Swift/false>.

## Discussion

An infinite rectangle is one that has no defined bounds. Infinite rectangles can be created as output from a tiling filter. For example, the Core Image framework perspective tile filter creates an image whose extent is described by an infinite rectangle.

---

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