76 lines
1.6 KiB
C++
76 lines
1.6 KiB
C++
///////////////////////////////////////////////////////////////
|
|
// 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;
|
|
}
|
|
|