# SUN_LEN

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/compat.h#L226
- **Page:** https://libtmux.org/en/tmux/3.2a/reference/c-define-compat-h-sun_len/

```c
#define SUN_LEN(sun) (sizeof (sun)->sun_path)
```