[Bug c++/39551] C++ frontend not warn about unused dereference operator with -Wunused-value

[lcwu at gcc dot gnu dot org]

------- Comment #1 from lcwu at gcc dot gnu dot org  2009-04-15 17:56 -------
Subject: Bug 39551

Author: lcwu
Date: Wed Apr 15 17:55:50 2009
New Revision: 146132

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=146132
Log:
        PR c++/39551
        * gcc/cp/call.c (build_over_call): Set TREE_NO_WARNING on the
        compiler-generated INDIRECT_REF expression.
        * gcc/cp/cvt.c (convert_to_void): Emit warning when stripping off
        INDIRECT_REF.
        * gcc/testsuite/g++.dg/warn/Wunused-13.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/warn/Wunused-13.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/cvt.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39551