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    CWG Issue 1242</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="1242"></A><H4>1242.
  
Initializing variant class members
</H4>
<B>Section: </B>11.9.3&#160; [<A href="https://wg21.link/class.base.init">class.base.init</A>]
 &#160;&#160;&#160;

 <B>Status: </B>C++11
 &#160;&#160;&#160;

 <B>Submitter: </B>Ryou Ezoe
 &#160;&#160;&#160;

 <B>Date: </B>2011-02-08<BR>


<P>[Voted into the WP at the March, 2011 meeting as part of paper N3262.]</P>



<P>The current wording of 11.9.3 [<A href="https://wg21.link/class.base.init#5">class.base.init</A>] paragraph 5 says,</P>

<BLOCKQUOTE>

A <I>ctor-initializer</I> may initialize the member of an anonymous union
that is a member of the constructor's class.

</BLOCKQUOTE>

<P>The wording &#8220;the member&#8221; is strange; furthermore, this
should be restricted to non-static data members.  That could be
accomplished by using the existing term &#8220;variant members,&#8221;
which is defined in 11.5 [<A href="https://wg21.link/class.union#8">class.union</A>] paragraph 8 to be
&#8220;the non-static data members of all anonymous unions that are
members of&#8221; the class (which by definition must be non-static
data members, since a storage class specifier is not allowed on an
anonymous union in class scope).</P>

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