# timeradd

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/compat.h#L245
- **Page:** https://libtmux.org/en/tmux/latest/reference/c-define-compat-h-timeradd/

```c
#define timeradd(tvp, uvp, vvp) do {                                \
    (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec;      \
    (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec;   \
    if ((vvp)->tv_usec >= 1000000) {            \
        (vvp)->tv_sec++;                \
        (vvp)->tv_usec -= 1000000;          \
    }                           \
} while (0)
```