Big Integer in C++

Question

Look what I found!
No more hastle of calculation of factorials of numbers > 100.

#include <boost/multiprecision/cpp_int.hpp>
#include <iostream>
namespace mp = boost::multiprecision;
using namespace std;
int main()
{
mp::cpp_int u = 1;
for(int i = 1; i <= 100; i++)
u *= i;
cout << "100! = " << u << '\n';
mp::cpp_int v = u / 100; cout << "99! = " << v << '\n';
}

Answer 1

I found this in a pdf a while back which you may find interesting. (link to pdf in code). BigInt with native cpp/STL

Boost library is better though imo. The pdf this is from is just a case study.

https://code.sololearn.com/c0U2BqoJSrO1/?ref=app

Answer 2

the boost library is indeed useful for many things

Answer 3

If anyone is wondering.

https://www.boost.org/