static VALUE
fix_and(VALUE x, VALUE y)
{
if (FIXNUM_P(y)) {
long val = FIX2LONG(x) & FIX2LONG(y);
return LONG2NUM(val);
}
if (RB_TYPE_P(y, T_BIGNUM)) {
return rb_big_and(y, x);
}
bit_coerce(&x, &y, TRUE);
return rb_funcall(x, rb_intern("&"), 1, y);
}