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Merged
jwakely merged 1 commit into from
Aug 28, 2026
Merged

Close 4574 as resolved by P4206R0 #618

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6 changes: 4 additions & 2 deletions xml/issue4574.xml
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
<?xml version='1.0' encoding='utf-8' standalone='no'?>
<!DOCTYPE issue SYSTEM "lwg-issue.dtd">

<issue num="4574" status="New">
<issue num="4574" status="Resolved">
<title><tt>constant_wrapper&lt;nullptr, int()&gt;</tt> bypasses `function_ref` class invariant</title>
<section>
<sref ref="[const.wrap.class]"/>
Expand All @@ -14,7 +14,7 @@
<discussion>
<p>
The wording in neither <sref ref="[const.wrap.class]"/> nor <sref ref="[func.wrap.ref]"/>
places a constraint on the 2nd template argument of `constant_wrapper`, so it can be
places a constraint on the 2nd template argument of `constant_wrapper`, so it can be
anything. An interpretation of the standard text based on that can cause
</p>
<blockquote><pre>
Expand Down Expand Up @@ -58,6 +58,8 @@ Set priority to 2 after reflector poll.
<p>
This should be resolved by <paper num="P4206R0"/>.
</p>

<note>2026-08-27 <paper num="P4206R0"/> was approved in Brno. Status changed: New &rarr; Resolved.</note>
</discussion>

<resolution>
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