ceph/src/boost/libs/numeric/conversion/include/boost/numeric/conversion/cast.hpp

   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>
  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