https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67707
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-09-24 CC| |trippels at gcc dot gnu.org Component|c++ |libstdc++ Ever confirmed|0 |1 --- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- It is a libstc++11 issue. Confirmed. markus@x4 tmp % clang++ -stdlib=libc++ -std=c++11 a.cpp markus@x4 tmp % ./a.out empty 1 size 0 empty 0 size 1 empty 1 size 0 empty 1 size 0 markus@x4 tmp % g++ -fsanitize=undefined --std=c++11 a.cpp markus@x4 tmp % ./a.out empty 1 size 0 empty 0 size 1 empty 1 size -128 /usr/lib/gcc/x86_64-pc-linux-gnu/5.2.1/include/g++-v5/bits/stl_deque.h:2162:20: runtime error: load of null pointer of type 'int *'