---
title: "checkForNFC(quickCheck:)"
framework: swift
role: symbol
role_heading: Instance Method
path: "swift/utf8span/checkfornfc(quickcheck:)"
---

# checkForNFC(quickCheck:)

Do a scan checking for whether the contents are in Normal Form C. When the contents are in NFC, canonical equivalence checks are much faster.

## Declaration

```swift
mutating func checkForNFC(quickCheck: Bool) -> Bool
```

## Discussion

Discussion quickCheck will check for a subset of NFC contents using the NFCQuickCheck algorithm, which is faster than the full normalization algorithm. However, it cannot detect all NFC contents. Updates the isKnownNFC bit. note: O(n)