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GL Profile Suite / boost_1_51_0 / boost / math / special_functions / detail / iconv.hpp

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//  Copyright (c) 2009 John Maddock
//  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)

#ifndef BOOST_MATH_ICONV_HPP
#define BOOST_MATH_ICONV_HPP

#ifdef _MSC_VER
#pragma once
#endif

#include <boost/math/special_functions/round.hpp>
#include <boost/type_traits/is_convertible.hpp>

namespace boost { namespace math { namespace detail{

template <class T, class Policy>
inline int iconv_imp(T v, Policy const&, mpl::true_ const&)
{
   return static_cast<int>(v);
}

template <class T, class Policy>
inline int iconv_imp(T v, Policy const& pol, mpl::false_ const&)
{
   BOOST_MATH_STD_USING
   return iround(v, pol);
}

template <class T, class Policy>
inline int iconv(T v, Policy const& pol)
{
   typedef typename boost::is_convertible<T, int>::type tag_type;
   return iconv_imp(v, pol, tag_type());
}


}}} // namespaces

#endif // BOOST_MATH_ICONV_HPP