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[v3 PATCH] Fix an access problem in variant.

From: Ville Voutilainen <ville dot voutilainen at gmail dot com>
To: "libstdc++" <libstdc++ at gcc dot gnu dot org>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Date: Tue, 7 Feb 2017 22:00:06 +0200
Subject: [v3 PATCH] Fix an access problem in variant.
Authentication-results: sourceware.org; auth=none

Currently, clang rejects all attempts to visit a libstdc++ variant:
https://godbolt.org/g/kSmBTg

While gcc doesn't reject such code, that seems like an access checking
bug. This patch makes the offending _M_u member accessible for the rest
of the code.

2017-02-07  Ville Voutilainen  <ville.voutilainen@gmail.com>

    Fix an access problem in variant.
    * include/std/variant (variant): Add a using-declaration for
    _Base::_M_u.

Attachment: variant-access-fix.diff
Description: Text document

Follow-Ups:
- Re: [v3 PATCH] Fix an access problem in variant.
  - From: Ville Voutilainen

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