[Bug c++/31397] Useful compiler warning missing (virtual functions in derived classes used without 'virtual')

[tbsaunde at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=31397

--- Comment #16 from tbsaunde at gcc dot gnu.org ---
Author: tbsaunde
Date: Tue Jan  6 02:02:47 2015
New Revision: 219213

URL: https://gcc.gnu.org/viewcvs?rev=219213&root=gcc&view=rev
Log:
implement -Wsuggest-override

c-family/

    PR c++/31397
    * c.opt (Wsuggest-override): New option.

cp/

    PR c++/31397
    * class.c (check_for_override): Warn when a virtual function is an
    override not marked override.

gcc/

    PR c++/31397
    * doc/invoke.texi: Document -Wsuggest-override.

Added:
    trunk/gcc/testsuite/g++.dg/warn/Wsuggest-override.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c.opt
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/class.c
    trunk/gcc/doc/invoke.texi