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    CWG Issue 2065</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="2065"></A><H4>2065.
  
Current instantiation of a partial specialization
</H4>
<B>Section: </B>13.8.3.2&#160; [<A href="https://wg21.link/temp.dep.type">temp.dep.type</A>]
 &#160;&#160;&#160;

 <B>Status: </B>CD6
 &#160;&#160;&#160;

 <B>Submitter: </B>Richard Smith
 &#160;&#160;&#160;

 <B>Date: </B>2014-12-29<BR>


<P>[Accepted at the November, 2020 meeting as part of paper P1787R6 and
moved to DR at the February, 2021 meeting.]</P>



<P>According to 13.8.3.2 [<A href="https://wg21.link/temp.dep.type#1">temp.dep.type</A>] paragraph 1, a name
refers to the current instantiation if it is

<BLOCKQUOTE>

in the definition of a partial specialization or a member of
a partial specialization, the name of the class template
followed by the template argument list of the partial
specialization enclosed in <TT>&lt;&gt;</TT> (or an equivalent
template alias specialization).

</BLOCKQUOTE>
</P>

<P>I don't think this works.  How are the argument lists
compared?  If it's using the &#8220;equivalent&#8221; rules,
this doesn't work because we make no provision for
&#8220;functionally equivalent but not equivalent&#8221; here.
If it's using 13.6 [<A href="https://wg21.link/temp.type#1">temp.type</A>] paragraph 1, that
fails because it doesn't handle dependent template arguments
at all.</P>

<P>The same issue would come up when defining members of a
partial specialization out-of-line.</P>

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