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From: "tudorb at fb dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/58140] New: -Wnon-virtual-dtor shouldn't fire for classes declared final
Date: Mon, 12 Aug 2013 17:48:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58140

            Bug ID: 58140
           Summary: -Wnon-virtual-dtor shouldn't fire for classes declared
                    final
           Product: gcc
           Version: 4.7.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tudorb at fb dot com

Created attachment 30636
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30636&action=edit
Test case

In C++11, we can declare a class as "final" to indicate that it can't be
derived from. In that case, having a public non-virtual destructor is fine,
even if the class has virtual methods (no derived classes exist, so deleting an
instance via a pointer is always safe).

In the attached example, the warning should fire for NonFinalDerived, but not
for FinalDerived.