// 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) // Note that this file contains quickbook mark-up as well as code // and comments, don't change any of the special comment mark-ups! #include <iostream> //[policy_eg_7 #include <boost/math/distributions.hpp> namespace { using namespace boost::math::policies; typedef policy< // return infinity and set errno rather than throw: overflow_error<errno_on_error>, // Don't promote double -> long double internally: promote_double<false>, // Return the closest integer result for discrete quantiles: discrete_quantile<integer_round_nearest> > my_policy; BOOST_MATH_DECLARE_DISTRIBUTIONS(double, my_policy) } // close namespace my_namespace int main() { // // Start with something we know will overflow: // normal norm(10, 2); errno = 0; std::cout << "Result of quantile(norm, 0) is: " << quantile(norm, 0) << std::endl; std::cout << "errno = " << errno << std::endl; errno = 0; std::cout << "Result of quantile(norm, 1) is: " << quantile(norm, 1) << std::endl; std::cout << "errno = " << errno << std::endl; // // Now try a discrete distribution: // binomial binom(20, 0.25); std::cout << "Result of quantile(binom, 0.05) is: " << quantile(binom, 0.05) << std::endl; std::cout << "Result of quantile(complement(binom, 0.05)) is: " << quantile(complement(binom, 0.05)) << std::endl; } //] ends quickbook imported section