https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64922
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Program received signal SIGSEGV, Segmentation fault.
0x00000000004018e7 in __exchange_and_add (__val=-1, __mem=0xfffffffffffffff9)
at
/home/marek/x/trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/ext/atomicity.h:49
49 { return __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); }
(gdb) bt
#0 0x00000000004018e7 in __exchange_and_add (__val=-1,
__mem=0xfffffffffffffff9)
at
/home/marek/x/trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/ext/atomicity.h:49
#1 __exchange_and_add_dispatch (__val=-1, __mem=0xfffffffffffffff9)
at
/home/marek/x/trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/ext/atomicity.h:82
#2 _M_dispose (__a=..., this=0xffffffffffffffe9)
at
/home/marek/x/trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/basic_string.h:2639
#3 ~basic_string (this=0x7fffffffde70, __in_chrg=<optimized out>)
at
/home/marek/x/trunk/x86_64-unknown-linux-gnu/libstdc++-v3/include/bits/basic_string.h:2941
#4 File::File (this=0x7fffffffdf10, file_name=...) at x.cc:89
#5 0x0000000000400c49 in main (argc=<optimized out>, argv=0x7fffffffe058) at
x.cc:143
