From: Jonathan Wakely <jwakely@redhat.com>
Date: Thu, 1 Feb 2024 21:23:27 +0000 (+0000)
Subject: libstdc++: Remove noexcept from std::osyncstream::operator=
X-Git-Tag: releases/gcc-13.3.0~478
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2dcf47ce0204a08b724cd5b637e9e8d281e3abbb;p=thirdparty%2Fgcc.git

libstdc++: Remove noexcept from std::osyncstream::operator=

This should not be noexcept because its _M_syncbuf member has a
potentially-throwing move assignment operator. The noexcept was removed
by LWG 3867.

libstdc++-v3/ChangeLog:

	* include/std/syncstream (basic_osyncstream::operator=): Remove
	noexcept, as per LWG 3867.

(cherry picked from commit 67f5a8c802463228da7c7bb2ab100095217560a6)
---

diff --git a/libstdc++-v3/include/std/syncstream b/libstdc++-v3/include/std/syncstream
index 3788b71ecddc..19cb581b7daa 100644
--- a/libstdc++-v3/include/std/syncstream
+++ b/libstdc++-v3/include/std/syncstream
@@ -286,7 +286,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 
       ~basic_osyncstream() = default;
 
-      basic_osyncstream& operator=(basic_osyncstream&&) noexcept = default;
+      basic_osyncstream& operator=(basic_osyncstream&&) = default;
 
       syncbuf_type* rdbuf() const noexcept
       { return const_cast<syncbuf_type*>(&_M_syncbuf); }