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// 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!
double some_value = 0;
//[policy_ref_snip1
#include <boost/math/special_functions/gamma.hpp>
using namespace boost::math::policies;
using namespace boost::math;
// Define a policy:
typedef policy<
domain_error<errno_on_error>,
pole_error<errno_on_error>,
overflow_error<errno_on_error>,
policies::evaluation_error<errno_on_error>
> my_policy;
// call the function:
double t1 = tgamma(some_value, my_policy());
// Alternatively we could use make_policy and define everything at the call site:
double t2 = tgamma(some_value, make_policy(
domain_error<errno_on_error>(),
pole_error<errno_on_error>(),
overflow_error<errno_on_error>(),
policies::evaluation_error<errno_on_error>()
));
//]
#include <iostream>
int main()
{
std::cout << t1 << " " << t2 << std::endl;
}
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