ng a single <CODE>openmode</CODE> parameter.
    <LI CLASS="square">Otherwise, <CODE>close</CODE> delegates to a member function <CODE>close</CODE> taking no parameters, but only if its <CODE>openmode</CODE> parameter is consistent with the mode of <CODE>T</CODE>. 
</UL>

<P>The last condition prevents a Device controlling a single sequence from being closed twice in succession.</P>

<P><B>NOTE:</B> Starting with Boost 1.35, the invocation of this function with an <CODE>openmode</CODE> other than <CODE>std: