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    CWG Issue 1411</TITLE>
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<P><EM>This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21
  Core Issues List revision 118b.
  See http://www.open-std.org/jtc1/sc22/wg21/ for the official
  list.</EM></P>
<P>2025-09-28</P>
<HR>
<A NAME="1411"></A><H4>1411.
  
More on global scope <TT>::</TT> in <I>nested-name-specifier</I>
</H4>
<B>Section: </B>Clause 11&#160; [<A href="https://wg21.link/class">class</A>]
 &#160;&#160;&#160;

 <B>Status: </B>CD3
 &#160;&#160;&#160;

 <B>Submitter: </B>David Blaikie
 &#160;&#160;&#160;

 <B>Date: </B>2011-10-28<BR>


<P>[Moved to DR at the April, 2013 meeting.]</P>



<P>The resolution of <A HREF="355.html">issue 355</A> failed to
update the grammar for <I>class-head-name</I> in Clause 11 [<A href="https://wg21.link/class#1">class</A>] paragraph 1
and removed the optional <TT>::</TT> from
<I>class-or-decltype</I> in 11.7 [<A href="https://wg21.link/class.derived#1">class.derived</A>] paragraph 1,
 with the result that it is still not possible to
globally-qualify a class name in a class definition, and the ability to
globally-qualify a base class name has been lost.</P>

<P><B>Proposed resolution (February, 2012):</B></P>

<P>Change the grammar in _N4567_.5.1.1 [<A href="https://wg21.link/expr.prim.general#8">expr.prim.general</A>] paragraph 8 as follows:</P>

<UL>
<I>qualified-id:</I>
<UL>
<I>nested-name-specifier</I> <TT>template</TT><I><SUB>opt</SUB> unqualified-id</I><BR>
<DEL><TT>::</TT> <I>identifier</I><BR>
<TT>::</TT> <I>operator-function-id</I><BR>
<TT>::</TT> <I>literal-operator-id</I><BR>
<TT>::</TT> <I>template-id</I></DEL>

</UL>

<I>nested-name-specifier:</I>
<UL>
<INS><TT>::</TT></INS><BR>
<DEL><TT>::</TT><I><SUB>opt</SUB></I></DEL> <I>type-name</I> <TT>::</TT><BR>
<DEL><TT>::</TT><I><SUB>opt</SUB></I></DEL> <I>namespace-name</I> <TT>::</TT><BR>
<I>decltype-specifier</I> <TT>::</TT><BR>
<I>nested-name-specifier identifier</I> <TT>::</TT><BR>
<I>nested-name-specifier</I> <TT>template</TT><I><SUB>opt</SUB> simple-template-id</I> <TT>::</TT>

</UL>

</UL>

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