[Bug c++/84850] [8 Regression] -Wclass-memaccess on a memcpy in a copy assignment operator with no nontrivial bases or members

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84850

--- Comment #7 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Wed Mar 21 15:14:02 2018
New Revision: 258719

URL: https://gcc.gnu.org/viewcvs?rev=258719&root=gcc&view=rev
Log:
PR c++/84850 - -Wclass-memaccess on a memcpy in a copy assignment operator with
no nontrivial bases or members

gcc/cp/ChangeLog:

        PR c++/84850
        * call.c (first_non_public_field): New template and function.
        (first_non_trivial_field): New function.
        (maybe_warn_class_memaccess): Call them.

gcc/testsuite/ChangeLog:

        PR c++/84850
        * g++.dg/Wclass-memaccess-3.C: New test.
        * g++.dg/Wclass-memaccess-4.C: New test.


Added:
    trunk/gcc/testsuite/g++.dg/Wclass-memaccess-3.C
    trunk/gcc/testsuite/g++.dg/Wclass-memaccess-4.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/testsuite/ChangeLog