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[PATCH] Qualify std::__invoke in <variant> to prevent ADL

From: Jonathan Wakely <jwakely at redhat dot com>
To: libstdc++ at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
Date: Tue, 15 May 2018 13:04:02 +0100
Subject: [PATCH] Qualify std::__invoke in <variant> to prevent ADL

Calling unqualified __invoke can't find the wrong function, because
users can't use that name in their own namespaces, but qualifying it
should make name lookup slightly faster.

	* include/std/variant (__gen_vtable_impl::__visit_invoke): Qualify
	__invoke to prevent ADL.

Tested powerpc64le-linux, committed to trunk.

Attachment: patch.txt
Description: Text document

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