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# longLongValue

The `long long` value of the string.

```
var longLongValue: Int64 { get }
```

## Discussion

The `long long` value of the string, assuming a decimal representation and skipping whitespace at the beginning of the string. This property is `LLONG_MAX` or `LLONG_MIN` on overflow. This property is `0` if the receiver doesn’t begin with a valid decimal text representation of a number.

This property uses formatting information stored in the non-localized value; use an [`Scanner`](/documentation/Foundation/Scanner) object for localized scanning of numeric values from a string.

## See Also

[`scanInt32(_:)`](/documentation/Foundation/Scanner/scanInt32(_:))

Scans for an int value from a decimal representation, returning a found value by reference.


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