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