\Header{ns-dblcolon}{Double Colon and Triple Colon Operators}
\alias{::}{ns-dblcolon}
\alias{:::}{ns-dblcolon}
\keyword{programming}{ns-dblcolon}
\begin{Description}\relax
Accessing exported and internal variables in a name space.
\end{Description}
\begin{Usage}
\begin{verbatim}
pkg::name
pkg:::name
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{pkg}] package name symbol or literal character string.
\item[\code{name}] variable name symbol or literal character string.
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
The expression \code{pkg::name} returns the value of the exported
variable \code{name} in package \code{pkg} if the package has a name
space.  The expression \code{pkg:::name} returns the value of the
internal variable \code{name} in package \code{pkg} if the package has
a name space.  The package will be loaded if it was not loaded already
before the call.  Assignment into name spaces is not supported.
\end{Details}
\begin{Examples}
\begin{ExampleCode}
base::log
base::"+"
\end{ExampleCode}
\end{Examples}

