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- ///////////////////////////////////////////////////////////////
- // Copyright 2013 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
- //[cpp_bin_float_eg
- #include <boost/multiprecision/cpp_bin_float.hpp>
- #include <boost/math/special_functions/gamma.hpp>
- #include <iostream>
- int main()
- {
- using namespace boost::multiprecision;
- // Operations at fixed precision and full numeric_limits support:
- cpp_bin_float_100 b = 2;
- std::cout << std::numeric_limits<cpp_bin_float_100>::digits << std::endl;
- std::cout << std::numeric_limits<cpp_bin_float_100>::digits10 << std::endl;
- // We can use any C++ std lib function, lets print all the digits as well:
- std::cout << std::setprecision(std::numeric_limits<cpp_bin_float_100>::max_digits10)
- << log(b) << std::endl; // print log(2)
- // We can also use any function from Boost.Math:
- std::cout << boost::math::tgamma(b) << std::endl;
- // These even work when the argument is an expression template:
- std::cout << boost::math::tgamma(b * b) << std::endl;
- // And since we have an extended exponent range we can generate some really large
- // numbers here (4.0238726007709377354370243e+2564):
- std::cout << boost::math::tgamma(cpp_bin_float_100(1000)) << std::endl;
- return 0;
- }
- //]
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