# LibTmux.Value.NegativeIndex

- **Module:** LibTmux.Value
- **Package:** libtmux-haskell
- **Language:** Haskell
- **Kind:** data constructor
- **Source:** https://github.com/libtmux/libtmux-haskell/blob/581f0ee45016ffb2283366bb1edc1658df26c5ed/src/LibTmux/Value.hs#L54
- **Page:** https://libtmux.org/en/haskell/latest/reference/libtmux-value-v-negativeindex/

```haskell
NegativeIndex !Integer
```

Signature types: [`Integer`](https://hackage.haskell.org/package/base-4.22.0.0/docs/Prelude.html#t:Integer).

The supplied contextual index was negative.