clear_opt_anc_info 3910 mbstring/oniguruma/regcomp.c   clear_opt_anc_info(to);
clear_opt_anc_info 3977 mbstring/oniguruma/regcomp.c   clear_opt_anc_info(&ex->anc);
clear_opt_anc_info 4246 mbstring/oniguruma/regcomp.c   clear_opt_anc_info(&opt->anc);