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[C++ Patch] PR 64644 (""warning: anonymous union with no members" should be an error with -pedantic-errors")

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: Jason Merrill <jason at redhat dot com>
Date: Fri, 16 Jun 2017 15:47:17 +0200
Subject: [C++ Patch] PR 64644 (""warning: anonymous union with no members" should be an error with -pedantic-errors")
Authentication-results: sourceware.org; auth=none

Hi,

submitter and Manuel analyzed this a while ago and came to theconclusion - which I think is still valid vs the current working draft -that strictly speaking this kind of code violates [dcl.dcl], thus apedwarn seems more suited than a plain warning. The below one-liner,suggested by Manuel at the time, passes testing on x86_64-linux togetherwith my testsuite changes.


Thanks,

Paolo.

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Attachment: CL_64644
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Attachment: patch_64644
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