EQ2EMu/EQ2/source/depends/boost_1_72_0/libs/multiprecision/example/cpp_int_snips.cpp

///////////////////////////////////////////////////////////////
//  Copyright 2011 John Maddock. Distributed under the Boost
//  Software License, Version 1.0. (See accompanying file
//  LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt

#include <boost/multiprecision/cpp_int.hpp>
#include <iostream>

void t1()
{
//[cpp_int_eg
//=#include <boost/multiprecision/cpp_int.hpp>
//=#include <iostream>
//=
//=int main()
//={
   using namespace boost::multiprecision;

   int128_t v = 1;

   // Do some fixed precision arithmetic:
   for(unsigned i = 1; i <= 20; ++i)
      v *= i;

   std::cout << v << std::endl; // prints 2432902008176640000 (i.e. 20!)

   // Repeat at arbitrary precision:
   cpp_int u = 1;
   for(unsigned i = 1; i <= 100; ++i)
      u *= i;
   
   // prints 93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000 (i.e. 100!)
   std::cout << u << std::endl;

//=   return 0;
//=}
//]
}

void t3()
{
//[cpp_rational_eg
//=#include <boost/multiprecision/cpp_int.hpp>
//=#include <iostream>
//=
//=int main()
//={
   using namespace boost::multiprecision;

   cpp_rational v = 1;

   // Do some arithmetic:
   for(unsigned i = 1; i <= 1000; ++i)
      v *= i;
   v /= 10;

   std::cout << v << std::endl; // prints 1000! / 10
   std::cout << numerator(v) << std::endl;
   std::cout << denominator(v) << std::endl;

   cpp_rational w(2, 3);  // component wise constructor
   std::cout << w << std::endl; // prints 2/3
//=   return 0;
//=}
//]
}


int main()
{
   t1();
   t3();
   return 0;
}