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source: downloads/boost_1_34_1/boost/numeric/interval/rounded_transc.hpp @ 47

Last change on this file since 47 was 29, checked in by landauf, 17 years ago

updated boost from 1_33_1 to 1_34_1
File size: 5.1 KB
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1/* Boost interval/rounded_transc.hpp template implementation file
2 *
3 * Copyright 2002-2003 Hervé Brönnimann, Guillaume Melquiond, Sylvain Pion
4 *
5 * Distributed under the Boost Software License, Version 1.0.
6 * (See accompanying file LICENSE_1_0.txt or
7 * copy at http://www.boost.org/LICENSE_1_0.txt)
8 */
9
10#ifndef BOOST_NUMERIC_INTERVAL_ROUNDED_TRANSC_HPP
11#define BOOST_NUMERIC_INTERVAL_ROUNDED_TRANSC_HPP
12
13#include <boost/numeric/interval/rounding.hpp>
14#include <boost/numeric/interval/detail/bugs.hpp>
15#include <cmath>
16
17namespace boost {
18namespace numeric {
19namespace interval_lib {
20
21template<class T, class Rounding>
22struct rounded_transc_exact: Rounding
23{
24# define BOOST_NUMERIC_INTERVAL_new_func(f) \
25    T f##_down(const T& x) { BOOST_NUMERIC_INTERVAL_using_math(f); return f(x); } \
26    T f##_up  (const T& x) { BOOST_NUMERIC_INTERVAL_using_math(f); return f(x); }
27  BOOST_NUMERIC_INTERVAL_new_func(exp)
28  BOOST_NUMERIC_INTERVAL_new_func(log)
29  BOOST_NUMERIC_INTERVAL_new_func(sin)
30  BOOST_NUMERIC_INTERVAL_new_func(cos)
31  BOOST_NUMERIC_INTERVAL_new_func(tan)
32  BOOST_NUMERIC_INTERVAL_new_func(asin)
33  BOOST_NUMERIC_INTERVAL_new_func(acos)
34  BOOST_NUMERIC_INTERVAL_new_func(atan)
35  BOOST_NUMERIC_INTERVAL_new_func(sinh)
36  BOOST_NUMERIC_INTERVAL_new_func(cosh)
37  BOOST_NUMERIC_INTERVAL_new_func(tanh)
38# undef BOOST_NUMERIC_INTERVAL_new_func
39# define BOOST_NUMERIC_INTERVAL_new_func(f) \
40    T f##_down(const T& x) { BOOST_NUMERIC_INTERVAL_using_ahyp(f); return f(x); } \
41    T f##_up  (const T& x) { BOOST_NUMERIC_INTERVAL_using_ahyp(f); return f(x); }
42  BOOST_NUMERIC_INTERVAL_new_func(asinh)
43  BOOST_NUMERIC_INTERVAL_new_func(acosh)
44  BOOST_NUMERIC_INTERVAL_new_func(atanh)
45# undef BOOST_NUMERIC_INTERVAL_new_func
46};
47 
48template<class T, class Rounding>
49struct rounded_transc_std: Rounding
50{
51# define BOOST_NUMERIC_INTERVAL_new_func(f) \
52    T f##_down(const T& x) \
53    { BOOST_NUMERIC_INTERVAL_using_math(f); \
54      this->downward(); return this->force_rounding(f(x)); } \
55    T f##_up  (const T& x) \
56    { BOOST_NUMERIC_INTERVAL_using_math(f); \
57      this->upward(); return this->force_rounding(f(x)); }
58  BOOST_NUMERIC_INTERVAL_new_func(exp)
59  BOOST_NUMERIC_INTERVAL_new_func(log)
60  BOOST_NUMERIC_INTERVAL_new_func(sin)
61  BOOST_NUMERIC_INTERVAL_new_func(cos)
62  BOOST_NUMERIC_INTERVAL_new_func(tan)
63  BOOST_NUMERIC_INTERVAL_new_func(asin)
64  BOOST_NUMERIC_INTERVAL_new_func(acos)
65  BOOST_NUMERIC_INTERVAL_new_func(atan)
66  BOOST_NUMERIC_INTERVAL_new_func(sinh)
67  BOOST_NUMERIC_INTERVAL_new_func(cosh)
68  BOOST_NUMERIC_INTERVAL_new_func(tanh)
69# undef BOOST_NUMERIC_INTERVAL_new_func
70# define BOOST_NUMERIC_INTERVAL_new_func(f) \
71    T f##_down(const T& x) \
72    { BOOST_NUMERIC_INTERVAL_using_ahyp(f); \
73      this->downward(); return this->force_rounding(f(x)); } \
74    T f##_up  (const T& x) \
75    { BOOST_NUMERIC_INTERVAL_using_ahyp(f); \
76      this->upward(); return this->force_rounding(f(x)); }
77  BOOST_NUMERIC_INTERVAL_new_func(asinh)
78  BOOST_NUMERIC_INTERVAL_new_func(acosh)
79  BOOST_NUMERIC_INTERVAL_new_func(atanh)
80# undef BOOST_NUMERIC_INTERVAL_new_func
81};
82
83template<class T, class Rounding>
84struct rounded_transc_opp: Rounding
85{
86# define BOOST_NUMERIC_INTERVAL_new_func(f) \
87    T f##_down(const T& x) \
88    { BOOST_NUMERIC_INTERVAL_using_math(f); \
89      this->downward(); T y = this->force_rounding(f(x)); \
90      this->upward(); return y; } \
91    T f##_up  (const T& x) \
92    { BOOST_NUMERIC_INTERVAL_using_math(f); \
93      return this->force_rounding(f(x)); }
94  BOOST_NUMERIC_INTERVAL_new_func(exp)
95  BOOST_NUMERIC_INTERVAL_new_func(log)
96  BOOST_NUMERIC_INTERVAL_new_func(cos)
97  BOOST_NUMERIC_INTERVAL_new_func(acos)
98  BOOST_NUMERIC_INTERVAL_new_func(cosh)
99# undef BOOST_NUMERIC_INTERVAL_new_func
100# define BOOST_NUMERIC_INTERVAL_new_func(f) \
101    T f##_down(const T& x) \
102    { BOOST_NUMERIC_INTERVAL_using_math(f); \
103      return -this->force_rounding(-f(x)); } \
104    T f##_up  (const T& x) \
105    { BOOST_NUMERIC_INTERVAL_using_math(f); \
106      return this->force_rounding(f(x)); }
107  BOOST_NUMERIC_INTERVAL_new_func(sin)
108  BOOST_NUMERIC_INTERVAL_new_func(tan)
109  BOOST_NUMERIC_INTERVAL_new_func(asin)
110  BOOST_NUMERIC_INTERVAL_new_func(atan)
111  BOOST_NUMERIC_INTERVAL_new_func(sinh)
112  BOOST_NUMERIC_INTERVAL_new_func(tanh)
113# undef BOOST_NUMERIC_INTERVAL_new_func
114# define BOOST_NUMERIC_INTERVAL_new_func(f) \
115    T f##_down(const T& x) \
116    { BOOST_NUMERIC_INTERVAL_using_ahyp(f); \
117      this->downward(); T y = this->force_rounding(f(x)); \
118      this->upward(); return y; } \
119    T f##_up  (const T& x) \
120    { BOOST_NUMERIC_INTERVAL_using_ahyp(f); \
121      return this->force_rounding(f(x)); }
122  BOOST_NUMERIC_INTERVAL_new_func(asinh)
123  BOOST_NUMERIC_INTERVAL_new_func(atanh)
124# undef BOOST_NUMERIC_INTERVAL_new_func
125# define BOOST_NUMERIC_INTERVAL_new_func(f) \
126    T f##_down(const T& x) \
127    { BOOST_NUMERIC_INTERVAL_using_ahyp(f); \
128      return -this->force_rounding(-f(x)); } \
129    T f##_up  (const T& x) \
130    { BOOST_NUMERIC_INTERVAL_using_ahyp(f); \
131      return this->force_rounding(f(x)); }
132  BOOST_NUMERIC_INTERVAL_new_func(acosh)
133# undef BOOST_NUMERIC_INTERVAL_new_func
134};
135 
136} // namespace interval_lib
137} // namespace numeric
138} // namespace boost
139
140#endif // BOOST_NUMERIC_INTERVAL_ROUNDED_TRANSC_HPP
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