bit_foreach_at
bit_foreach_at(evdev->ev_abs_flags, ABS_MT_FIRST, ABS_MT_LAST + 1, i)
bit_foreach_at(sc->sc_odata, MOD_MIN, MOD_MAX + 1, key)
bit_foreach_at(sc->sc_ndata, MOD_MIN, MOD_MAX + 1, key)
bit_foreach_at(_bitstr, /*start*/0, _nbits, _iter)
BITSTRING_TC_DEFINE(bit_foreach_at)
bit_foreach_at(bitstr, nbits, nbits, set_bit) {
bit_foreach_at(bitstr, s, nbits, set_bit) {
bit_foreach_at(bitstr, 0, e, set_bit) {
BITSTRING_TC_ADD(tp, bit_foreach_at);