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[Bug c++/72789] New: add -Wunused-private-field

From: "tromey at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
To: gcc-bugs at gcc dot gnu dot org
Date: Wed, 03 Aug 2016 13:13:43 +0000
Subject: [Bug c++/72789] New: add -Wunused-private-field
Auto-submitted: auto-generated

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72789

            Bug ID: 72789
           Summary: add -Wunused-private-field
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tromey at gcc dot gnu.org
  Target Milestone: ---

I found out recently that clang has a '-Wunused-private-field'
warning.  E.g., I got:

https://github.com/mozilla/rr/pull/1757#issuecomment-237031428

I think it would be good to add this to gcc.

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