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    CWG Issue 793</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="793"></A><H4>793.
  
Use of class members during destruction
</H4>
<B>Section: </B>6.8.4&#160; [<A href="https://wg21.link/basic.life">basic.life</A>]
 &#160;&#160;&#160;

 <B>Status: </B>CD2
 &#160;&#160;&#160;

 <B>Submitter: </B>US
 &#160;&#160;&#160;

 <B>Date: </B>3 March, 2009<BR><BR>


<A href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3086.html#US26">N2800 comment
  US&#160;26<BR></A>

<P>[Voted into WP at March, 2010 meeting.]</P>

<P>Read literally, 6.8.4 [<A href="https://wg21.link/basic.life">basic.life</A>] paragraphs 1 and 5 would
make any access to non-static members of a class from the class's
destructor undefined behavior. This is clearly not the intent.</P>

<P><B>Proposed resolution (October, 2009):</B></P>

<P>Change 6.8.4 [<A href="https://wg21.link/basic.life">basic.life</A>] paragraphs 5-6 as follows:</P>

<BLOCKQUOTE>

<P>...any pointer that refers to the storage location where the object
will be or was located may be used but only in limited ways.
<DEL>Such</DEL> <INS>For an object under construction or destruction,
see 11.9.5 [<A href="https://wg21.link/class.cdtor">class.cdtor</A>]. Otherwise, such</INS> a pointer refers
to allocated storage...</P>

<P>...any lvalue which refers to the original object may be used but
only in limited ways.  <DEL>Such</DEL> <INS>For an object under
construction or destruction, see 11.9.5 [<A href="https://wg21.link/class.cdtor">class.cdtor</A>]. Otherwise,
such</INS> an lvalue refers to allocated storage...</P>

</BLOCKQUOTE>

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