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    CWG Issue 1684</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="1684"></A><H4>1684.
  
Static <TT>constexpr</TT> member functions for non-literal classes
</H4>
<B>Section: </B>9.2.6&#160; [<A href="https://wg21.link/dcl.constexpr">dcl.constexpr</A>]
 &#160;&#160;&#160;

 <B>Status: </B>C++14
 &#160;&#160;&#160;

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

 <B>Date: </B>2013-05-15<BR>


<P>[Applied to WP at the February, 2014 meeting.]</P>

<P>The current wording of 9.2.6 [<A href="https://wg21.link/dcl.constexpr#8">dcl.constexpr</A>] paragraph 8 is:</P>

<BLOCKQUOTE>

The <TT>constexpr</TT> specifier has no effect on the type of
a <TT>constexpr</TT> function or a <TT>constexpr</TT> constructor. The
class of which a <TT>constexpr</TT> function is a member shall be a literal
type (6.9 [<A href="https://wg21.link/basic.types">basic.types</A>]).

</BLOCKQUOTE>

<P>The previous version of this wording made clear that the restriction
on the class type applied only to non-static member functions;
consequently, the new formulation has inadvertently banned static
<TT>constexpr</TT> member functions of non-literal classes.</P>

<P><B>Proposed resolution (November, 2013):</B></P>

<P>Change 9.2.6 [<A href="https://wg21.link/dcl.constexpr#8">dcl.constexpr</A>] paragraph 8 as follows:</P>

<BLOCKQUOTE>

The <TT>constexpr</TT> specifier has no effect on the type of a
<TT>constexpr</TT> function or a <TT>constexpr</TT>
constructor. <DEL>The class of which a <TT>constexpr</TT>
function is a member shall be a literal type
(6.9 [<A href="https://wg21.link/basic.types">basic.types</A>]).</DEL> [<I>Example:</I>...

</BLOCKQUOTE>

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