bitset_invert_to 1988 ext/mbstring/oniguruma/regparse.c     bitset_invert_to(bsr1, bs1);
bitset_invert_to 1992 ext/mbstring/oniguruma/regparse.c     bitset_invert_to(bsr2, bs2);
bitset_invert_to 2046 ext/mbstring/oniguruma/regparse.c     bitset_invert_to(bsr1, bs1);
bitset_invert_to 2050 ext/mbstring/oniguruma/regparse.c     bitset_invert_to(bsr2, bs2);