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[v3] Fix libstdc++/45228

From: Paolo Carlini <paolo dot carlini at oracle dot com>
To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Cc: libstdc++ <libstdc++ at gcc dot gnu dot org>
Date: Tue, 10 Aug 2010 09:22:21 +0200
Subject: [v3] Fix libstdc++/45228

Hi,

tested x86_64-linux, committed to mainline. Maybe we can even better
here, but the cleanest solution I can see is adding constrains for
sizeof...(_UElements) == sizeof...(_Elements) to the converting
constructors and assignment operators of the primary template (something
that the FCD even encourages) and adding a quite short tuple
specialization for single element. That also allows to resolve the long
standing XXX fixme.

Paolo.

Attachment: CL_45228
Description: Text document

Attachment: patch_45228
Description: Text document

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