\begin{minipage}[t]{8in}
\begin{tabular}{ll}
MSetBase$<$Item,Impl$>$  & ms;
\end{tabular}\\
 
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Create an empty multiset using the \Container\ 
class {\em Impl} (where {\em Impl} contains elements of type {\em Item})
as an implementation.\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
MSetBase$<$Item,Impl$>$  & ms( (Collection$<$Item$>$\&) c); 
\end{tabular}\\

	
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Create a multiset using the \Container\ 
class {\em Impl} (where {\em Impl} contains elements of type {\em Item})
as an implementation.  Initialize the collection with the elements of $c$.
 $O(n)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
MSetBase$<$Item,Impl$>$  & ms( (MSetBase$<$Item,Impl$>$\&) m); 
\end{tabular}\\

	
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Create a multiset using the \Container\ 
class {\em Impl} (where {\em Impl} contains elements of type {\em Item})
as an implementation.  Use reference counting to share $m$'s implementation.
	$O(1)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
MSet$<$Item$>$  & ms; 
\end{tabular}\\

	
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Create an empty multiset using the implementation
specified by DEFAULT\_SET\_IMPL in MSet.h.  Initialize it with the elements
of $c$.  $O(n)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
MSet$<$Item$>$  & ms( (Collection$<$Item$>$\&) c); 
\end{tabular}\\

	
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Create a multiset using the implementation
specified by DEFAULT\_SET\_IMPL in MSet.h.  Initialize it with the elements
of $c$.  $O(n)$\end{minipage}
\end{minipage}
\vspace{0.2in}


\begin{minipage}[t]{8in}
\begin{tabular}{ll}
MSet$<$Item$>$  & ms( (MSet$<$Item$>$\&) m); 
\end{tabular}\\

	
 \parbox[b]{2in} \ \ 
\begin{minipage}[t]{4in}Create a multiset using the default \Container\ 
class 
as an implementation.  Use reference counting to share $m$'s implementation.
	$O(1)$\end{minipage}
\end{minipage}
\vspace{0.2in}