# UTF8_GET_WIDTH

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/utf8.c#L257
- **Page:** https://libtmux.org/en/tmux/3.7c/reference/c-define-utf8-c-utf8_get_width/

```c
#define UTF8_GET_WIDTH(uc) (((uc) >> 29) - 1)
```

## Referenced by

- [`utf8_to_data`](/en/tmux/3.7c/reference/c-function-utf8_to_data/) (function)