85 lines
1.7 KiB
C++
85 lines
1.7 KiB
C++
///////////////////////////////////////////////////////////////
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// Copyright 2011 John Maddock. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
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#include <boost/multiprecision/tommath.hpp>
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#include <iostream>
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void t1()
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{
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//[tommath_eg
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//=#include <boost/multiprecision/tommath.hpp>
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//=#include <iostream>
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//=
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//=int main()
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//={
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boost::multiprecision::tom_int v = 1;
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// Do some arithmetic:
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for(unsigned i = 1; i <= 1000; ++i)
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v *= i;
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std::cout << v << std::endl; // prints 1000!
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std::cout << std::hex << v << std::endl; // prints 1000! in hex format
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try{
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std::cout << std::hex << -v << std::endl; // Ooops! can't print a negative value in hex format!
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}
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catch(const std::runtime_error& e)
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{
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std::cout << e.what() << std::endl;
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}
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try{
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// v is not a 2's complement type, bitwise operations are only supported
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// on positive values:
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v = -v & 2;
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}
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catch(const std::runtime_error& e)
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{
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std::cout << e.what() << std::endl;
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}
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//= return 0;
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//=}
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//]
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}
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void t3()
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{
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//[mp_rat_eg
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//=#include <boost/multiprecision/tommath.hpp>
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//=#include <iostream>
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//=
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//=int main()
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//={
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using namespace boost::multiprecision;
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tom_rational v = 1;
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// Do some arithmetic:
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for(unsigned i = 1; i <= 1000; ++i)
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v *= i;
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v /= 10;
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std::cout << v << std::endl; // prints 1000! / 10
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std::cout << numerator(v) << std::endl;
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std::cout << denominator(v) << std::endl;
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tom_rational w(2, 3); // Component wise constructor
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std::cout << w << std::endl; // prints 2/3
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//= return 0;
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//=}
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//]
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}
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int main()
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{
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t1();
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t3();
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return 0;
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}
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