ceph/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/config.hpp>
  15 #include <boost/numeric/interval/rounding.hpp>
  16 #include <boost/numeric/interval/rounded_arith.hpp>
  17
  18 #define BOOST_NUMERIC_INTERVAL_NO_HARDWARE
  19
  20 // define appropriate specialization of rounding_control for built-in types
  21 #if defined(__x86_64__) && !defined(BOOST_NO_FENV_H)
  22 #  include <boost/numeric/interval/detail/c99_rounding_control.hpp>
  23 #elif defined(__i386__) || defined(_M_IX86) || defined(__BORLANDC__) && !defined(__clang__) || defined(_M_X64)
  24 #  include <boost/numeric/interval/detail/x86_rounding_control.hpp>
  25 #elif defined(__i386) && defined(__SUNPRO_CC)
  26 #  include <boost/numeric/interval/detail/x86_rounding_control.hpp>
  27 #elif defined(powerpc) || defined(__powerpc__) || defined(__ppc__)
  28 #  include <boost/numeric/interval/detail/ppc_rounding_control.hpp>
  29 #elif defined(sparc) || defined(__sparc__)
  30 #  include <boost/numeric/interval/detail/sparc_rounding_control.hpp>
  31 #elif defined(alpha) || defined(__alpha__)
  32 #  include <boost/numeric/interval/detail/alpha_rounding_control.hpp>
  33 #elif defined(ia64) || defined(__ia64) || defined(__ia64__)
  34 #  include <boost/numeric/interval/detail/ia64_rounding_control.hpp>
  35 #endif
  36
  37 #if defined(BOOST_NUMERIC_INTERVAL_NO_HARDWARE) && !defined(BOOST_NO_FENV_H)
  38 #  include <boost/numeric/interval/detail/c99_rounding_control.hpp>
  39 #endif
  40
  41 #if defined(BOOST_NUMERIC_INTERVAL_NO_HARDWARE)
  42 #  undef BOOST_NUMERIC_INTERVAL_NO_HARDWARE
  43 #  error Boost.Numeric.Interval: Please specify rounding control mechanism.
  44 #endif
  45
  46 namespace boost {
  47 namespace numeric {
  48 namespace interval_lib {
  49
  50 /*
  51  * Three specializations of rounded_math<T>
  52  */
  53
  54 template<>
  55 struct rounded_math<float>
  56   : save_state<rounded_arith_opp<float> >
  57 {};
  58
  59 template<>
  60 struct rounded_math<double>
  61   : save_state<rounded_arith_opp<double> >
  62 {};
  63
  64 template<>
  65 struct rounded_math<long double>
  66   : save_state<rounded_arith_opp<long double> >
  67 {};
  68
  69 } // namespace interval_lib
  70 } // namespace numeric
  71 } // namespace boost
  72
  73 #endif // BOOST_NUMERIC_INTERVAL_HW_ROUNDING_HPP