1 //  Copyright (c) 2009 John Maddock
2 //  Use, modification and distribution are subject to the
3 //  Boost Software License, Version 1.0. (See accompanying file
4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5 
6 #ifndef BOOST_MATH_ICONV_HPP
7 #define BOOST_MATH_ICONV_HPP
8 
9 #ifdef _MSC_VER
10 #pragma once
11 #endif
12 
13 #include <boost/math/special_functions/round.hpp>
14 #include <boost/type_traits/is_convertible.hpp>
15 
16 namespace boost { namespace math { namespace detail{
17 
18 template <class T, class Policy>
iconv_imp(T v,Policy const &,mpl::true_ const &)19 inline int iconv_imp(T v, Policy const&, mpl::true_ const&)
20 {
21    return static_cast<int>(v);
22 }
23 
24 template <class T, class Policy>
iconv_imp(T v,Policy const & pol,mpl::false_ const &)25 inline int iconv_imp(T v, Policy const& pol, mpl::false_ const&)
26 {
27    BOOST_MATH_STD_USING
28    return iround(v, pol);
29 }
30 
31 template <class T, class Policy>
iconv(T v,Policy const & pol)32 inline int iconv(T v, Policy const& pol)
33 {
34    typedef typename boost::is_convertible<T, int>::type tag_type;
35    return iconv_imp(v, pol, tag_type());
36 }
37 
38 
39 }}} // namespaces
40 
41 #endif // BOOST_MATH_ICONV_HPP
42 
43