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// unit test file sinc.hpp for the special functions test suite
// (C) Copyright Hubert Holin 2003.
// Distributed under 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 <functional>
#include <iomanip>
#include <iostream>
#include <complex>
#include <boost/math/special_functions/sinc.hpp>
#define BOOST_TEST_MAIN
#include <boost/test/unit_test.hpp>
BOOST_TEST_CASE_TEMPLATE_FUNCTION(sinc_pi_test, T)
{
using ::std::abs;
using ::std::numeric_limits;
using ::boost::math::sinc_pi;
BOOST_TEST_MESSAGE("Testing sinc_pi in the real domain for "
<< string_type_name<T>::_() << ".");
BOOST_CHECK_PREDICATE(::std::less_equal<T>(),
(abs(sinc_pi<T>(static_cast<T>(0))-static_cast<T>(1)))
(numeric_limits<T>::epsilon()));
}
BOOST_TEST_CASE_TEMPLATE_FUNCTION(sinc_pi_complex_test, T)
{
using ::std::abs;
using ::std::sinh;
using ::std::numeric_limits;
using ::boost::math::sinc_pi;
BOOST_TEST_MESSAGE("Testing sinc_pi in the complex domain for "
<< string_type_name<T>::_() << ".");
BOOST_CHECK_PREDICATE(::std::less_equal<T>(),
(abs(sinc_pi<T>(::std::complex<T>(0, 1))-
::std::complex<T>(sinh(static_cast<T>(1)))))
(numeric_limits<T>::epsilon()));
}
void sinc_pi_manual_check()
{
using ::boost::math::sinc_pi;
BOOST_TEST_MESSAGE(" ");
BOOST_TEST_MESSAGE("sinc_pi");
for (int i = 0; i <= 100; i++)
{
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
BOOST_TEST_MESSAGE( ::std::setw(15)
<< sinc_pi<float>(static_cast<float>(i-50)/
static_cast<float>(50))
<< ::std::setw(15)
<< sinc_pi<double>(static_cast<double>(i-50)/
static_cast<double>(50))
<< ::std::setw(15)
<< sinc_pi<long double>(static_cast<long double>(i-50)/
static_cast<long double>(50)));
#else
BOOST_TEST_MESSAGE( ::std::setw(15)
<< sinc_pi<float>(static_cast<float>(i-50)/
static_cast<float>(50))
<< ::std::setw(15)
<< sinc_pi<double>(static_cast<double>(i-50)/
static_cast<double>(50)));
#endif
}
BOOST_TEST_MESSAGE(" ");
}
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