Bitfields in C

main.c

#include <stdio.h>

int main() {
    unsigned int number = 1203;
    short found_one = 0;
    for (int i = (sizeof(unsigned  int) * 8) - 1; i >= 0; i--) {
        if (number & (1u << i)) {
            putchar('1');
            found_one = 1;
        } else if (found_one) {
            putchar('0');
        }
    }
    printf("\n");
    return 0;
}

main.cpp

#include <iostream>

int main() {
    unsigned int number = 1203;
    bool found = false;
    for (int i = (sizeof(unsigned int) * 8) - 1; i >= 0; i--) {
        if (number & (1u << i)) {
            std::cout << "1";
            found = true;
        } else if (found) {
            std::cout << "0";
        }
    }
    std::cout << std::endl;
    return 0;
}