source: NonGTP/Boost/boost/numeric/interval/hw_rounding.hpp @ 857

Revision 857, 1.9 KB checked in by igarcia, 19 years ago (diff)
Line 
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(__i386__) || defined(_M_IX86) || defined(__BORLANDC__)
21#  include <boost/numeric/interval/detail/x86_rounding_control.hpp>
22#elif defined(powerpc) || defined(__powerpc__) || defined(__ppc__)
23#  include <boost/numeric/interval/detail/ppc_rounding_control.hpp>
24#elif defined(sparc) || defined(__sparc__)
25#  include <boost/numeric/interval/detail/sparc_rounding_control.hpp>
26#endif
27
28#if defined(BOOST_NUMERIC_INTERVAL_NO_HARDWARE) && (defined(__USE_ISOC99) || defined(__MSL__))
29#  include <boost/numeric/interval/detail/c99_rounding_control.hpp>
30#endif
31
32#if defined(BOOST_NUMERIC_INTERVAL_NO_HARDWARE)
33#  undef BOOST_NUMERIC_INTERVAL_NO_HARDWARE
34#  error Boost.Numeric.Interval: Please specify rounding control mechanism.
35#endif
36
37namespace boost {
38namespace numeric {
39namespace interval_lib {
40
41/*
42 * Three specializations of rounded_math<T>
43 */
44
45template<>
46struct rounded_math<float>
47  : save_state<rounded_arith_opp<float> >
48{};
49
50template<>
51struct rounded_math<double>
52  : save_state<rounded_arith_opp<double> >
53{};
54
55template<>
56struct rounded_math<long double>
57  : save_state<rounded_arith_opp<long double> >
58{};
59
60} // namespace interval_lib
61} // namespace numeric
62} // namespace boost
63
64#endif // BOOST_NUMERIC_INTERVAL_HW_ROUNDING_HPP
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