[Bug c++/36587] Feature: add warning for constructor call with discarded return.

["manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36587

Manuel López-Ibáñez <manu at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |manu at gcc dot gnu.org

--- Comment #10 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Kaz Kylheku from comment #1)
> Created attachment 15798 [details]
> Implements -Wunused-objects warning for C++.

Patches need to be properly tested and submitted. See
https://gcc.gnu.org/wiki/GettingStarted#Basics:_Contributing_to_GCC_in_10_easy_steps

The few people that have the power to approve patches are very busy and they
very rarely read bugzilla. Patches attached to bugzilla are usually understood
as proof-of-concept or work-in-progress, not actual submissions.
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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug sanitizer/66908] Uninitialized variable when compiled with UBsan
Date: Thu, 23 Jul 2015 13:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idf908

--- Comment #13 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Thu Jul 23 13:54:06 2015
New Revision: 226110

URL: https://gcc.gnu.org/viewcvs?rev"6110&root=gcc&view=rev
Log:
        PR sanitizer/66908
        * c-ubsan.c: Include gimplify.h.
        (ubsan_instrument_division): Unshare OP0 and OP1.
        (ubsan_instrument_shift): Likewise.

        * c-c++-common/ubsan/pr66908.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/ubsan/pr66908.c
Modified:
    trunk/gcc/c-family/ChangeLog
    trunk/gcc/c-family/c-ubsan.c
    trunk/gcc/testsuite/ChangeLog