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    CWG Issue 383</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="383"></A><H4>383.
  
Is a class with a declared but not defined destructor a POD?
</H4>
<B>Section: </B>Clause 11&#160; [<A href="https://wg21.link/class">class</A>]
 &#160;&#160;&#160;

 <B>Status: </B>CD1
 &#160;&#160;&#160;

 <B>Submitter: </B>Gennaro Prota
 &#160;&#160;&#160;

 <B>Date: </B>18 Sep 2002<BR>


<P>[Voted into WP at March 2004 meeting.]</P>

<P>The standard (Clause 11 [<A href="https://wg21.link/class">class</A>] par. 4) says that
"A POD-struct is an aggregate class
that has no non-static data members of type non-POD-struct,
non-POD-union (or array of such types) or reference, and has no
user-defined copy assignment operator and no user-defined destructor."</P>

<P>Note that it says 'user-defined', not 'user-declared'. Is it the
intent that if e.g. a copy assignment operator is declared but not
defined, this does not (per se) prevent the class to be a POD-struct?</P>

<P><B>Proposed resolution (April 2003):</B></P>

<P>
Replace in Clause 11 [<A href="https://wg21.link/class#4">class</A>] paragraph 4</P>

<BLOCKQUOTE>
A <I>POD-struct</I> is an aggregate class that has no non-static data
members of type non-POD-struct, non-POD-union (or array of such types)
or reference, and has no user-<DEL>defined</DEL> <INS>declared</INS>
copy assignment operator and no user-<DEL>defined</DEL>
<INS>declared</INS> destructor.  Similarly, a <I>POD-union</I> is an
aggregate union that has no non-static data members of type
non-POD-struct, non-POD-union (or array of such types) or reference,
and has no user-<DEL>defined</DEL> <INS>declared</INS> copy
assignment operator and no user-<DEL>defined</DEL>
<INS>declared</INS> destructor.
</BLOCKQUOTE>

<P><I>Drafting note: The changes are shown relative to TC1, incorporating
the changes from the resolution of
<A HREF="148.html">core issue 148</A>.</I></P>

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