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// Copyright 2012 Daniel James.
// 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)
#if defined(__GNUC__)
// in type_traits/is_complete.hpp:47
#pragma GCC diagnostic ignored "-Wconversion"
#endif
#include <boost/static_assert.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/is_convertible.hpp>
#include <cmath>
namespace test
{
template <class T1>
struct check_return_type
{
template <class T2>
static void equals(T2)
{
BOOST_STATIC_ASSERT((boost::is_same<T1, T2>::value));
}
template <class T2>
static void equals_ref(T2&)
{
BOOST_STATIC_ASSERT((boost::is_same<T1, T2>::value));
}
template <class T2>
static void convertible(T2)
{
BOOST_STATIC_ASSERT((boost::is_convertible<T2, T1>::value));
}
};
}
int main() {
float f = 0;
double d = 0;
long double l = 0;
test::check_return_type<float>::equals(std::ldexp(f, 0));
test::check_return_type<double>::equals(std::ldexp(d, 0));
test::check_return_type<long double>::equals(std::ldexp(l, 0));
int dummy = 0;
test::check_return_type<float>::equals(std::frexp(f, &dummy));
test::check_return_type<double>::equals(std::frexp(d, &dummy));
test::check_return_type<long double>::equals(std::frexp(l, &dummy));
#if BOOST_HASH_USE_FPCLASSIFY
int (*fpc1)(float) = std::fpclassify;
int (*fpc2)(double) = std::fpclassify;
int (*fpc3)(long double) = std::fpclassify;
#endif
}
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