\HeaderA{Internal}{Call an Internal Function}{Internal}
\aliasA{.Internal}{Internal}{.Internal}
\keyword{interface}{Internal}
\begin{Description}\relax
\code{.Internal} performs a call to an internal code
which is built in to the \R{} interpreter.

Only true \R{} wizards should even consider using this function, and only
\R{} developers can add to the list of internal functions.
\end{Description}
\begin{Usage}
\begin{verbatim}
 .Internal(call)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{call}] a call expression
\end{ldescription}
\end{Arguments}
\begin{SeeAlso}\relax
\code{\LinkA{.Primitive}{.Primitive}}, \code{\LinkA{.External}{.External}} (the nearest
equivalent available to  users).
\end{SeeAlso}

