[Bug c++/67942] diagnose placement new buffer overflow

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67942

--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Thu Nov  5 21:42:10 2015
New Revision: 229827

URL: https://gcc.gnu.org/viewcvs?rev=229827&root=gcc&view=rev
Log:
PR c++/67942 - diagnose placement new buffer overflow

gcc/
        * invoke.texi (-Wplacement-new): Document new option.
        * gcc/testsuite/g++.dg/warn/Wplacement-new-size.C: New test.

gcc/c-family/
        * c.opt (-Wplacement-new): New option.

gcc/cp/
        * cp/init.c (warn_placement_new_too_small): New function.
        (build_new_1): Call it.

gcc/testsuite/
        * g++.dg/warn/Wplacement-new-size.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/warn/Wplacement-new-size.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c.opt
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/init.c
    trunk/gcc/doc/invoke.texi
    trunk/gcc/testsuite/ChangeLog