bitset_invert_to 1996 ext/mbstring/oniguruma/regparse.c     bitset_invert_to(bsr1, bs1);
bitset_invert_to 2000 ext/mbstring/oniguruma/regparse.c     bitset_invert_to(bsr2, bs2);
bitset_invert_to 2054 ext/mbstring/oniguruma/regparse.c     bitset_invert_to(bsr1, bs1);
bitset_invert_to 2058 ext/mbstring/oniguruma/regparse.c     bitset_invert_to(bsr2, bs2);