From: Tomasz Kamiński <tkaminsk@redhat.com>
Date: Fri, 23 Jan 2026 10:09:08 +0000 (+0100)
Subject: libstdc++: Explicitly call _Mo_base() in _Cpy_base copy-constructor [PR123758]
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7e5113e592c54c5893ba096791e1f1eddf7684d;p=thirdparty%2Fgcc.git

libstdc++: Explicitly call _Mo_base() in _Cpy_base copy-constructor [PR123758]

This silences the warning while preserving current (correct) behavior.

	PR libstdc++/123758

libstdc++-v3/ChangeLog:

	* include/bits/funcwrap.h (_Cpy_base(_Cpy_base const&)):
	Explicitly call _Mo_base() in initializer list.
---

diff --git a/libstdc++-v3/include/bits/funcwrap.h b/libstdc++-v3/include/bits/funcwrap.h
index 67fd591e963..b8dd6fb7aea 100644
--- a/libstdc++-v3/include/bits/funcwrap.h
+++ b/libstdc++-v3/include/bits/funcwrap.h
@@ -495,6 +495,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       _Cpy_base(_Cpy_base&&) = default;
 
       _Cpy_base(_Cpy_base const& __x)
+      : _Mo_base()
       { _M_copy(__x); }
 
       _Cpy_base&