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git.proxmox.com Git - ceph.git/blob - ceph/src/boost/libs/functional/hash/test/hash_number_test.cpp
2 // Copyright 2005-2009 Daniel James.
3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 #include "./config.hpp"
8 #ifdef BOOST_HASH_TEST_STD_INCLUDES
11 # include <boost/functional/hash.hpp>
15 #include <boost/detail/lightweight_test.hpp>
17 #include <boost/preprocessor/cat.hpp>
18 #include <boost/functional/hash/detail/limits.hpp>
19 #include <boost/utility/enable_if.hpp>
21 #include "./compile_time.hpp"
23 #if defined(BOOST_MSVC)
25 #pragma warning(disable:4127) // conditional expression is constant
26 #pragma warning(disable:4309) // truncation of constant value
27 #pragma warning(disable:4310) // cast truncates constant value
30 #if defined(__GNUC__) && !defined(BOOST_INTEL_CXX_VERSION)
31 #pragma GCC diagnostic ignored "-Wfloat-equal"
35 void numeric_extra_tests(typename
36 boost::enable_if_c
<boost::hash_detail::limits
<T
>::is_integer
,
39 typedef boost::hash_detail::limits
<T
> limits
;
41 if(limits::is_signed
||
42 limits::digits
<= boost::hash_detail::limits
<std::size_t>::digits
)
44 BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(T(-5)) == (std::size_t)T(-5));
46 BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(T(0)) == (std::size_t)T(0u));
47 BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(T(10)) == (std::size_t)T(10u));
48 BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(T(25)) == (std::size_t)T(25u));
52 void numeric_extra_tests(typename
53 boost::disable_if_c
<boost::hash_detail::limits
<T
>::is_integer
,
61 compile_time_tests((T
*) 0);
63 BOOST_HASH_TEST_NAMESPACE::hash
<T
> x1
;
64 BOOST_HASH_TEST_NAMESPACE::hash
<T
> x2
;
67 BOOST_TEST(x1(v1
) == x2(v1
));
68 BOOST_TEST(x1(T(-5)) == x2(T(-5)));
69 BOOST_TEST(x1(T(0)) == x2(T(0)));
70 BOOST_TEST(x1(T(10)) == x2(T(10)));
71 BOOST_TEST(x1(T(25)) == x2(T(25)));
72 BOOST_TEST(x1(T(5) - T(5)) == x2(T(0)));
73 BOOST_TEST(x1(T(6) + T(4)) == x2(T(10)));
75 #if defined(BOOST_HASH_TEST_EXTENSIONS)
76 BOOST_TEST(x1(T(-5)) == BOOST_HASH_TEST_NAMESPACE::hash_value(T(-5)));
77 BOOST_TEST(x1(T(0)) == BOOST_HASH_TEST_NAMESPACE::hash_value(T(0)));
78 BOOST_TEST(x1(T(10)) == BOOST_HASH_TEST_NAMESPACE::hash_value(T(10)));
79 BOOST_TEST(x1(T(25)) == BOOST_HASH_TEST_NAMESPACE::hash_value(T(25)));
81 numeric_extra_tests
<T
>();
88 typedef boost::hash_detail::limits
<T
> limits
;
90 if(limits::is_specialized
)
92 BOOST_HASH_TEST_NAMESPACE::hash
<T
> x1
;
93 BOOST_HASH_TEST_NAMESPACE::hash
<T
> x2
;
95 T min_value
= (limits::min
)();
96 T max_value
= (limits::max
)();
98 BOOST_TEST(x1(min_value
) == x2((limits::min
)()));
99 BOOST_TEST(x1(max_value
) == x2((limits::max
)()));
101 #if defined(BOOST_HASH_TEST_EXTENSIONS)
102 BOOST_TEST(x1(min_value
) == BOOST_HASH_TEST_NAMESPACE::hash_value(min_value
));
103 BOOST_TEST(x1(max_value
) == BOOST_HASH_TEST_NAMESPACE::hash_value(max_value
));
105 if (limits::is_integer
)
107 BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(min_value
)
108 == std::size_t(min_value
));
109 BOOST_TEST(BOOST_HASH_TEST_NAMESPACE::hash_value(max_value
)
110 == std::size_t(max_value
));
117 void poor_quality_tests(T
*)
119 typedef boost::hash_detail::limits
<T
> limits
;
121 BOOST_HASH_TEST_NAMESPACE::hash
<T
> x1
;
122 BOOST_HASH_TEST_NAMESPACE::hash
<T
> x2
;
124 // A hash function can legally fail these tests, but it'll not be a good
127 BOOST_TEST(x1(T(1)) != x2(T(-1)));
129 BOOST_TEST(x1(T(1)) != x2(T(2)));
130 if((limits::max
)() != (limits::max
)() - 1)
131 BOOST_TEST(x1(static_cast<T
>((limits::max
)()))
132 != x2(static_cast<T
>((limits::max
)() - 1)));
137 BOOST_HASH_TEST_NAMESPACE::hash
<bool> x1
;
138 BOOST_HASH_TEST_NAMESPACE::hash
<bool> x2
;
140 BOOST_TEST(x1(true) == x2(true));
141 BOOST_TEST(x1(false) == x2(false));
142 BOOST_TEST(x1(true) != x2(false));
143 BOOST_TEST(x1(false) != x2(true));
146 #define NUMERIC_TEST(type, name) \
147 std::cerr<<"Testing: " BOOST_STRINGIZE(name) "\n"; \
148 numeric_test((type*) 0); \
149 limits_test((type*) 0); \
150 poor_quality_tests((type*) 0);
151 #define NUMERIC_TEST_NO_LIMITS(type, name) \
152 std::cerr<<"Testing: " BOOST_STRINGIZE(name) "\n"; \
153 numeric_test((type*) 0); \
154 poor_quality_tests((type*) 0);
158 NUMERIC_TEST(char, char)
159 NUMERIC_TEST(signed char, schar
)
160 NUMERIC_TEST(unsigned char, uchar
)
161 #ifndef BOOST_NO_INTRINSIC_WCHAR_T
162 NUMERIC_TEST(wchar_t, wchar
)
164 NUMERIC_TEST(short, short)
165 NUMERIC_TEST(unsigned short, ushort
)
166 NUMERIC_TEST(int, int)
167 NUMERIC_TEST(unsigned int, uint
)
168 NUMERIC_TEST(long, hash_long
)
169 NUMERIC_TEST(unsigned long, ulong
)
171 #if !defined(BOOST_NO_LONG_LONG)
172 NUMERIC_TEST_NO_LIMITS(boost::long_long_type
, long_long
)
173 NUMERIC_TEST_NO_LIMITS(boost::ulong_long_type
, ulong_long
)
176 #if defined(BOOST_HAS_INT128)
177 NUMERIC_TEST_NO_LIMITS(boost::int128_type
, int128
)
178 NUMERIC_TEST_NO_LIMITS(boost::uint128_type
, uint128
)
181 NUMERIC_TEST(float, float)
182 NUMERIC_TEST(double, double)
184 NUMERIC_TEST(std::size_t, size_t)
185 NUMERIC_TEST(std::ptrdiff_t, ptrdiff_t)
189 return boost::report_errors();
192 #if defined(BOOST_MSVC)