Measure the running time with `time ./test` on Linux

test.cpp

#include <iostream>
#include <boost/dynamic_bitset.hpp>

int maxn = 1e8;
int bits = 100;

void test1() {
    boost::dynamic_bitset<> bs(bits, abs(rand()));
    int a = 0;
    for (int i = 0; i < maxn; i++) {
        a += bs.count();
    }
    std::cout << a << std::endl;
}

int main() {
    std::cout << boost::dynamic_bitset<>::bits_per_block << std::endl;
    srand(time(NULL));
    test1();
}