1 | // (C) Copyright Gennadiy Rozental 2001. |
2 | // Distributed under the Boost Software License, Version 1.0. |
3 | // (See accompanying file LICENSE_1_0.txt or copy at |
4 | // http://www.boost.org/LICENSE_1_0.txt) |
5 | |
6 | // See http://www.boost.org/libs/test for the library home page. |
7 | // |
8 | // File : $RCSfile$ |
9 | // |
10 | // Version : $Revision: 74248 $ |
11 | // |
12 | // Description : FPC tools tolerance holder |
13 | // *************************************************************************** |
14 | |
15 | #ifndef BOOST_TEST_TOOLS_FPC_TOLERANCE_HPP_121612GER |
16 | #define BOOST_TEST_TOOLS_FPC_TOLERANCE_HPP_121612GER |
17 | |
18 | // Boost Test |
19 | #include <boost/test/tree/decorator.hpp> |
20 | #include <boost/test/tools/floating_point_comparison.hpp> |
21 | |
22 | #include <boost/test/detail/suppress_warnings.hpp> |
23 | |
24 | //____________________________________________________________________________// |
25 | |
26 | namespace boost { |
27 | namespace test_tools { |
28 | |
29 | namespace fpc = math::fpc; |
30 | |
31 | // ************************************************************************** // |
32 | // ************** floating point comparison tolerance ************** // |
33 | // ************************************************************************** // |
34 | |
35 | template<typename FPT> |
36 | inline FPT& |
37 | fpc_tolerance() |
38 | { |
39 | static FPT s_value = 0; |
40 | return s_value; |
41 | } |
42 | |
43 | //____________________________________________________________________________// |
44 | |
45 | template<typename FPT> |
46 | struct local_fpc_tolerance { |
47 | local_fpc_tolerance( FPT fraction_tolerance ) : m_old_tolerance( fpc_tolerance<FPT>() ) |
48 | { |
49 | fpc_tolerance<FPT>() = fraction_tolerance; |
50 | } |
51 | |
52 | ~local_fpc_tolerance() |
53 | { |
54 | if( m_old_tolerance != (FPT)-1 ) |
55 | fpc_tolerance<FPT>() = m_old_tolerance; |
56 | } |
57 | |
58 | private: |
59 | // Data members |
60 | FPT m_old_tolerance; |
61 | }; |
62 | |
63 | //____________________________________________________________________________// |
64 | |
65 | } // namespace test_tools |
66 | |
67 | // ************************************************************************** // |
68 | // ************** decorator::tolerance ************** // |
69 | // ************************************************************************** // |
70 | |
71 | namespace unit_test { |
72 | namespace decorator { |
73 | |
74 | template<typename FPT> |
75 | inline fixture_t |
76 | tolerance( FPT v ) |
77 | { |
78 | return fixture_t( test_unit_fixture_ptr( |
79 | new unit_test::class_based_fixture<test_tools::local_fpc_tolerance<FPT>,FPT>( v ) ) ); |
80 | } |
81 | |
82 | //____________________________________________________________________________// |
83 | |
84 | template<typename FPT> |
85 | inline fixture_t |
86 | tolerance( test_tools::fpc::percent_tolerance_t<FPT> v ) |
87 | { |
88 | return fixture_t( test_unit_fixture_ptr( |
89 | new unit_test::class_based_fixture<test_tools::local_fpc_tolerance<FPT>,FPT>( boost::math::fpc::fpc_detail::fraction_tolerance<FPT>( v ) ) ) ); |
90 | } |
91 | |
92 | //____________________________________________________________________________// |
93 | |
94 | } // namespace decorator |
95 | |
96 | using decorator::tolerance; |
97 | |
98 | } // namespace unit_test |
99 | } // namespace boost |
100 | |
101 | #include <boost/test/detail/enable_warnings.hpp> |
102 | |
103 | #endif // BOOST_TEST_TOOLS_FPC_TOLERANCE_HPP_121612GER |
104 | |