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[Bug c++/31246] Strange -Wunreachable-code warning with _GLIBCXX_DEBUG
- From: "manu at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 23 Aug 2008 16:13:37 -0000
- Subject: [Bug c++/31246] Strange -Wunreachable-code warning with _GLIBCXX_DEBUG
- References: <bug-31246-1902@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #20 from manu at gcc dot gnu dot org 2008-08-23 16:13 -------
For testcase in comment #4 I get 2 warnings now:
home/manuel/test2/src/gcc/testsuite/g++.dg/warn/pr31246-2.C: In function ?int*
get_ptr(void*)?:
/home/manuel/test2/src/gcc/testsuite/g++.dg/warn/pr31246-2.C:8: warning: will
never be executed
/home/manuel/test2/src/libstdc++-v3/libsupc++/new: In function ?void* operator
new(size_t, void*)?:
/home/manuel/test2/src/libstdc++-v3/libsupc++/new:105: warning: will never be
executed
libsupc++/new does not contain #pragma GCC system_headers, so even using
warning_at doesn't suppress the warning.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31246