src/boost/boost/numeric/interval/hw_rounding.hpp

   1 /* Boost interval/hw_rounding.hpp template implementation file
   2  *
   3  * Copyright 2002 Hervé Brönnimann, Guillaume Melquiond, Sylvain Pion
   4  * Copyright 2005 Guillaume Melquiond
   5  *
   6  * Distributed under the Boost Software License, Version 1.0.
   7  * (See accompanying file LICENSE_1_0.txt or
   8  * copy at http://www.boost.org/LICENSE_1_0.txt)
   9  */
  10
  11 #ifndef BOOST_NUMERIC_INTERVAL_HW_ROUNDING_HPP
  12 #define BOOST_NUMERIC_INTERVAL_HW_ROUNDING_HPP
  13
  14 #include <boost/numeric/interval/rounding.hpp>
  15 #include <boost/numeric/interval/rounded_arith.hpp>
  16
  17 #define BOOST_NUMERIC_INTERVAL_NO_HARDWARE
  18
  19 // define appropriate specialization of rounding_control for built-in types
  20 #if defined(__x86_64__) && (defined(__USE_ISOC99) || defined(__APPLE__))
  21 #  include <boost/numeric/interval/detail/c99_rounding_control.hpp>
  22 #elif defined(__i386__) || defined(_M_IX86) || defined(__BORLANDC__) || defined(_M_X64)
  23 #  include <boost/numeric/interval/detail/x86_rounding_control.hpp>
  24 #elif defined(powerpc) || defined(__powerpc__) || defined(__ppc__)
  25 #  include <boost/numeric/interval/detail/ppc_rounding_control.hpp>
  26 #elif defined(sparc) || defined(__sparc__)
  27 #  include <boost/numeric/interval/detail/sparc_rounding_control.hpp>
  28 #elif defined(alpha) || defined(__alpha__)
  29 #  include <boost/numeric/interval/detail/alpha_rounding_control.hpp>
  30 #elif defined(ia64) || defined(__ia64) || defined(__ia64__)
  31 #  include <boost/numeric/interval/detail/ia64_rounding_control.hpp>
  32 #endif
  33
  34 #if defined(BOOST_NUMERIC_INTERVAL_NO_HARDWARE) && (defined(__USE_ISOC99) || defined(__MSL__))
  35 #  include <boost/numeric/interval/detail/c99_rounding_control.hpp>
  36 #endif
  37
  38 #if defined(BOOST_NUMERIC_INTERVAL_NO_HARDWARE)
  39 #  undef BOOST_NUMERIC_INTERVAL_NO_HARDWARE
  40 #  error Boost.Numeric.Interval: Please specify rounding control mechanism.
  41 #endif
  42
  43 namespace boost {
  44 namespace numeric {
  45 namespace interval_lib {
  46
  47 /*
  48  * Three specializations of rounded_math<T>
  49  */
  50
  51 template<>
  52 struct rounded_math<float>
  53   : save_state<rounded_arith_opp<float> >
  54 {};
  55
  56 template<>
  57 struct rounded_math<double>
  58   : save_state<rounded_arith_opp<double> >
  59 {};
  60
  61 template<>
  62 struct rounded_math<long double>
  63   : save_state<rounded_arith_opp<long double> >
  64 {};
  65
  66 } // namespace interval_lib
  67 } // namespace numeric
  68 } // namespace boost
  69
  70 #endif // BOOST_NUMERIC_INTERVAL_HW_ROUNDING_HPP