static bool[] ba = [1,0,1,0,1];
static bool[] bb = [1,0,1,1,0];

auto a = BitArray(ba);
auto b = BitArray(bb);

BitArray c = a & b;

assert(c[0] == 1);
assert(c[1] == 0);
assert(c[2] == 1);
assert(c[3] == 0);
assert(c[4] == 0);

bool[] ba = [1,0,1,0,1];
bool[] bb = [1,0,1,1,0];

auto a = BitArray(ba);
auto b = BitArray(bb);

BitArray c = a | b;

assert(c[0] == 1);
assert(c[1] == 0);
assert(c[2] == 1);
assert(c[3] == 1);
assert(c[4] == 1);

bool[] ba = [1,0,1,0,1];
bool[] bb = [1,0,1,1,0];

auto a = BitArray(ba);
auto b = BitArray(bb);

BitArray c = a ^ b;

assert(c[0] == 0);
assert(c[1] == 0);
assert(c[2] == 0);
assert(c[3] == 1);
assert(c[4] == 1);

bool[] ba = [1,0,1,0,1];
bool[] bb = [1,0,1,1,0];

auto a = BitArray(ba);
auto b = BitArray(bb);

BitArray c = a - b;

assert(c[0] == 0);
assert(c[1] == 0);
assert(c[2] == 0);
assert(c[3] == 0);
assert(c[4] == 1);