[PROTON-1834] [cpp] equality operator used on nested lists causes SIGABRT

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: cpp-binding
• Labels: codec
• Assignee: Unassigned
• Reporter: Kim van der Riet
• Created: 25/Apr/18 12:45
• Updated: 02/May/18 22:19

Description

Checking the equality of nested list [[], [3, "hello"]] causes a core dump. However, if the list (as a proton::value) is created and checked against itself, it works fine. However, if the list is assigned to a message body and then compared with the original, then the equality cores. The following is dumped from the attached reproducer:

#0  0x00007f37f7bc7660 in raise () from /lib64/libc.so.6
#1  0x00007f37f7bc8c41 in abort () from /lib64/libc.so.6
#2  0x00007f37f853d025 in __gnu_cxx::__verbose_terminate_handler() () from /lib64/libstdc++.so.6
#3  0x00007f37f853ac16 in __cxxabiv1::__terminate(void (*)()) () from /lib64/libstdc++.so.6
#4  0x00007f37f853ac61 in std::terminate() () from /lib64/libstdc++.so.6
#5  0x00007f37f853aea4 in __cxa_throw () from /lib64/libstdc++.so.6
#6  0x00007f37f8caaa2b in proton::codec::decoder::pre_get (this=this@entry=0x7fff4b7a6340) at /home/kvdr/RedHat/qpid-proton/cpp/src/decoder.cpp:76
#7  0x00007f37f8caaaa7 in proton::codec::decoder::next_type (this=this@entry=0x7fff4b7a6340) at /home/kvdr/RedHat/qpid-proton/cpp/src/decoder.cpp:104
#8  0x00007f37f8cbce39 in proton::(anonymous namespace)::compare_next (a=..., b=...) at /home/kvdr/RedHat/qpid-proton/cpp/src/value.cpp:113
#9  0x00007f37f8cbd79b in proton::(anonymous namespace)::compare_container (b=..., a=...) at /home/kvdr/RedHat/qpid-proton/cpp/src/value.cpp:97
#10 proton::(anonymous namespace)::compare_next (a=..., b=...) at /home/kvdr/RedHat/qpid-proton/cpp/src/value.cpp:123
#11 0x00007f37f8cbd937 in proton::(anonymous namespace)::compare (x=..., y=...) at /home/kvdr/RedHat/qpid-proton/cpp/src/value.cpp:163
#12 0x00007f37f8cbdda7 in proton::operator== (x=..., y=...) at /home/kvdr/RedHat/qpid-proton/cpp/src/value.cpp:176
#13 0x000000000040169d in main ()