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# positiveInfinity

A value that represents positive infinity.

```
static let positiveInfinity: CMTime
```

## Discussion

Don’t test a time against this constant using (time == [`positiveInfinity`](/documentation/CoreMedia/CMTime/positiveInfinity)) because there are many times that are also positive infinity. Use [`CMTIME_IS_POSITIVEINFINITY(_:)`](/documentation/CoreMedia/CMTIME_IS_POSITIVEINFINITY(_:)) instead.

---

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