\begin{arguments}
  \argdesc{pastix\_data}{Area used to store information between calls.}
  \argdesc{n           }{Number of unknowns.}
  \argdesc{list        }{List of unknowns.}
\end{arguments}

\begin{returns}
  \argdesc{NO\_ERR}{If all goes well.}
\end{returns}
