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[C++ Path] PR 38958

From: Paolo Carlini <paolo dot carlini at oracle dot com>
To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Cc: Jason Merrill <jason at redhat dot com>
Date: Wed, 12 Jun 2013 08:58:09 -0700 (PDT)
Subject: [C++ Path] PR 38958

Hi,

this bug is a sort of follow up to 10416, which I fixed some time agoand was about avoiding -Wunused warnings for class types withdestructors with side-effects.

In this issue reporter notes that we don't handle in the same wayreferences, thus, considering the testcase, we do not warn for:


    Lock lock = AcquireLock();

and we do for:

    const Lock& lock = AcquireLock();

whereas the destructor is involved in both cases in a similar way, etc.

Thus I changed the code in poplevel to see through references for-Wunused-variable. Tested x86_64-linux.


Thanks,
Paolo.

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Attachment: CL_38958
Description: Text document

Attachment: patch_38958
Description: Text document

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