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    CWG Issue 1265</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="1265"></A><H4>1265.
  
Mixed use of the <TT>auto</TT> specifier
</H4>
<B>Section: </B>9.2.9.7&#160; [<A href="https://wg21.link/dcl.spec.auto">dcl.spec.auto</A>]
 &#160;&#160;&#160;

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

 <B>Submitter: </B>Michael Wong
 &#160;&#160;&#160;

 <B>Date: </B>2011-03-20<BR>


<P>[Voted into the WP at the February, 2012 meeting;
moved to DR at the October, 2012 meeting.]</P>

<P>The current wording of 9.2.9.7 [<A href="https://wg21.link/dcl.spec.auto">dcl.spec.auto</A>] does not appear
to forbid using the <TT>auto</TT> specifier for both a function
declaration with a trailing return type and a variable definition in
the same declaration, e.g.,</P>

<PRE>
    auto f() -&gt; int, i = 0;
</PRE>

<P>(See also <A HREF="1347.html">issue 1347</A>.)</P>

<P><B>Proposed resolution (August, 2011):</B></P>

<P>Change 9.2.9.7 [<A href="https://wg21.link/dcl.spec.auto#7">dcl.spec.auto</A>] paragraph 7 as follows:</P>

<BLOCKQUOTE>

If the list of declarators contains more than one declarator,
<INS>they shall all form declarations of variables. The</INS>
<DEL>the</DEL> type of each declared variable is determined as
described above<DEL>. If</DEL><INS>, and if</INS> the type deduced for
the template parameter <TT>U</TT> is not the same in each deduction,
the program is ill-formed. [<I>Example:</I>...

</BLOCKQUOTE>

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