Chapter 4, Problem 17PS

Find any errors in the following function definition:

$\begin{array}{|l|}\hline \text{int fun }\left(\text{int x, int y}\right)\hfill \\ \text{{}\hfill \\ \mathrm{...}\hfill \\ \text{int sun }\left(\text{int t}\right)\hfill \\ \mathrm{...}\hfill \\ \text{{}\hfill \\ \mathrm{...}\hfill \\ \text{return }\left(\text{t}+\text{3}\right)\text{;}\hfill \\ \text{}}\hfill \\ \mathrm{...}\hfill \\ \text{return z;}\hfill \\ \text{} // fun}\hfill \\ \hline\end{array}$