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    CWG Issue 30</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="30"></A><H4>30.
  
Valid uses of "<TT>::template</TT>"
</H4>
<B>Section: </B>13.3&#160; [<A href="https://wg21.link/temp.names">temp.names</A>]
 &#160;&#160;&#160;

 <B>Status: </B>TC1
 &#160;&#160;&#160;

 <B>Submitter: </B>Daveed Vandevoorde
 &#160;&#160;&#160;

 <B>Date: </B>28 May 1998<BR>





<P>I have a request for clarification regarding a issue similar to John
Wiegley's, but wrt. the <TT>::template</TT> syntax. More precisely, where
is</P>
<PRE>
    X::template Y
</PRE>
allowed? (It is required for dependent <TT>X</TT> where <TT>Y</TT> is a
<I>template-id</I>, I believe, but it doesn't seem to be disallowed elsewhere.)

<P>The question also holds for '<TT>.template</TT>' and '<TT>-&gt;template</TT>'.</P>

<P>
<B>Proposed Resolution (04/99):</B>
Append to 13.3 [<A href="https://wg21.link/temp.names#5">temp.names</A>] paragraph 5:
</P>
<BLOCKQUOTE>Furthermore, names of member templates shall not be prefixed
by the keyword <TT>template</TT> if the <I>postfix-expression</I> or <I>qualified-id</I>
does not appear in the scope of a template. [<I>Note:</I> just as is the case
with the <TT>typename</TT> prefix, the <TT>template</TT> prefix is allowed
in cases where it is not strictly necessary; i.e., when the expression
on the left of the <TT>-&gt;</TT> or <TT>.</TT>, or the <I>nested-name-specifier</I>
is not dependent on a <I>template-parameter</I>. ]</BLOCKQUOTE>
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