crash when yylex

[minguofeng]

in parser.tab.cpp file ,when this line is called, there is a crash
yyla.kind_ = yytranslate_ (yylex (&yyla.value, &yyla.location));
Thread 1 "test_parser_mai" received signal SIGILL, Illegal instruction.
0x000000fff5cdd548 in vtable for __cxxabiv1::__si_class_type_info () from /lib64/libstdc++.so.6
(gdb) bt
#0 0x000000fff5cdd548 in vtable for __cxxabiv1::__si_class_type_info () from /lib64/libstdc++.so.6

flex version is 2.6.4

[Mightyjo]

Can you provide more context, please? A link to the source file and description of the input causing the crash would be very helpful.

Thanks!