example for https://notion.so/9f2e93036dda4cdaa63c838ace1176e6

main.cpp

// :glot
#include <iostream>

int main(int argc, char **argv) {
    int a = 5;  // 0101b  (0x05)
    a &= 10;    // a = 0101b & 1010b == 0

    std::cout << "a = " << a << std::endl;
}