1 //  (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
2 //  Use, modification, and distribution is subject to the Boost Software
3 //  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
4 //  http://www.boost.org/LICENSE_1_0.txt)
5 
6 //  See library home page at http://www.boost.org/libs/numeric/conversion
7 //
8 // Contact the author at: fernando_cacciola@hotmail.com
9 //
10 //
11 //  Revision History
12 //
13 //    19 Nov 2001 Syntatic changes as suggested by Darin Adler (Fernando Cacciola)
14 //    08 Nov 2001 Fixes to accommodate MSVC (Fernando Cacciola)
15 //    04 Nov 2001 Fixes to accommodate gcc2.92 (Fernando Cacciola)
16 //    30 Oct 2001 Some fixes suggested by Daryle Walker (Fernando Cacciola)
17 //    25 Oct 2001 Initial boostification (Fernando Cacciola)
18 //    23 Jan 2004 Inital add to cvs (post review)s
19 //    22 Jun 2011 Added support for specializing cast policies via numeric_cast_traits (Brandon Kohn).
20 //
21 #ifndef BOOST_NUMERIC_CONVERSION_CAST_25OCT2001_HPP
22 #define BOOST_NUMERIC_CONVERSION_CAST_25OCT2001_HPP
23 
24 #include <boost/detail/workaround.hpp>
25 
26 #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x582))
27 
28 #  include<boost/numeric/conversion/detail/old_numeric_cast.hpp>
29 
30 #else
31 
32 #include <boost/type.hpp>
33 #include <boost/numeric/conversion/converter.hpp>
34 #include <boost/numeric/conversion/numeric_cast_traits.hpp>
35 
36 namespace boost
37 {
38     template <typename Target, typename Source>
numeric_cast(Source arg)39     inline Target numeric_cast( Source arg )
40     {
41         typedef numeric::conversion_traits<Target, Source>   conv_traits;
42         typedef numeric::numeric_cast_traits<Target, Source> cast_traits;
43         typedef boost::numeric::converter
44             <
45                 Target,
46                 Source,
47                 conv_traits,
48                 typename cast_traits::overflow_policy,
49                 typename cast_traits::rounding_policy,
50                 boost::numeric::raw_converter< conv_traits >,
51                 typename cast_traits::range_checking_policy
52             > converter;
53         return converter::convert(arg);
54     }
55 
56     using numeric::bad_numeric_cast;
57 } // namespace boost
58 
59 #endif
60 
61 #endif
62