https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61582
--- Comment #7 from Tim Shen <timshen at gcc dot gnu.org> ---
"(.*{100}{100}{100})" seems to be a stack overflow. It's because regex executor
uses recursion. It could be fixed (not segfault but memory exhaustion) by using
a std::stack and simulate recursion; IMH, however, directly throwing
regex_error::error_space is the right thing here to do.
