// Copyright John Maddock 2007. // Use, modification and distribution are subject to the // Boost Software License, Version 1.0. (See accompanying file // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) #include <iostream> //[policy_eg_2 #include <boost/math/special_functions/gamma.hpp> int main() { using namespace boost::math::policies; errno = 0; std::cout << "Result of tgamma(30000) is: " << boost::math::tgamma( 30000, make_policy( domain_error<errno_on_error>(), pole_error<errno_on_error>(), overflow_error<errno_on_error>(), evaluation_error<errno_on_error>() ) ) << std::endl; // Check errno was set: std::cout << "errno = " << errno << std::endl; // and again with evaluation at a pole: std::cout << "Result of tgamma(-10) is: " << boost::math::tgamma( -10, make_policy( domain_error<errno_on_error>(), pole_error<errno_on_error>(), overflow_error<errno_on_error>(), evaluation_error<errno_on_error>() ) ) << std::endl; // Check errno was set: std::cout << "errno = " << errno << std::endl; } //]