clear_opt_exact_info 4641 regcomp.c          clear_opt_exact_info(to);
clear_opt_exact_info 4646 regcomp.c          clear_opt_exact_info(to);
clear_opt_exact_info 4842 regcomp.c        clear_opt_exact_info(&opt->exb);
clear_opt_exact_info 4843 regcomp.c        clear_opt_exact_info(&opt->exm);
clear_opt_exact_info 4844 regcomp.c        clear_opt_exact_info(&opt->expr);
clear_opt_exact_info 4883 regcomp.c            clear_opt_exact_info(&add->exb);
clear_opt_exact_info 4887 regcomp.c            clear_opt_exact_info(&add->exb);