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[PATCH] PR libstdc++/90397 fix std::variant friend declarations

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: Fri, 10 May 2019 22:45:47 +0100
Subject: [PATCH] PR libstdc++/90397 fix std::variant friend declarations

Clang diagnoses the inconsistent noexcept-specifier on the friend
declaration of __get. Add it, and also on __get_storage.

	PR libstdc++/90397
	* include/std/variant (_Variant_storage<false, Types...>::_M_storage())
	(_Variant_storage<true, Types...>::_M_reset()))
	(_Variant_storage<true, Types...>::_M_storage())): Add noexcept.
	(__get_storage): Likewise.
	(variant): Add noexcept to friend declarations for __get and
	__get_storage.

Tested powerpc64le-linux (and with clang), committed to trunk.

Backport to gcc-9-branch to follow soon.

Attachment: patch.txt
Description: Text document

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