1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
// boost integer.hpp test program ------------------------------------------//
// Copyright Beman Dawes 1999.
// Copyright Daryle Walker 2001.
// Copyright John Maddock 2009.
// Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org/libs/integer for documentation.
// Revision History
// 04 Oct 01 Added tests for new templates; rewrote code (Daryle Walker)
// 10 Mar 01 Boost Test Library now used for tests (Beman Dawes)
// 31 Aug 99 Initial version
#include <boost/detail/lightweight_test.hpp> // for main, BOOST_TEST
#include <boost/integer.hpp> // for boost::int_t, boost::uint_t
#include <boost/type_traits/is_same.hpp>
#include <boost/mpl/bool.hpp> // for mpl::true_ and false_
#include <climits> // for ULONG_MAX, LONG_MAX, LONG_MIN
#include <iostream> // for std::cout (std::endl indirectly)
#include <typeinfo> // for std::type_info
#ifdef BOOST_MSVC
#pragma warning(disable:4127) // conditional expression is constant
#endif
#if defined( __BORLANDC__ )
# pragma option -w-8008 -w-8066 // condition is always true
#endif
//
// Keep track of error count, so we can print out detailed
// info only if we need it:
//
int last_error_count = 0;
//
// Helpers to print out the name of a type,
// we use these as typeid(X).name() doesn't always
// return a human readable string:
//
template <class T> const char* get_name_of_type(T){ return typeid(T).name(); }
const char* get_name_of_type(signed char){ return "signed char"; }
const char* get_name_of_type(unsigned char){ return "unsigned char"; }
const char* get_name_of_type(short){ return "short"; }
const char* get_name_of_type(unsigned short){ return "unsigned short"; }
const char* get_name_of_type(int){ return "int"; }
const char* get_name_of_type(unsigned int){ return "unsigned int"; }
const char* get_name_of_type(long){ return "long"; }
const char* get_name_of_type(unsigned long){ return "unsigned long"; }
#ifdef BOOST_HAS_LONG_LONG
const char* get_name_of_type(boost::long_long_type){ return "boost::long_long_type"; }
const char* get_name_of_type(boost::ulong_long_type){ return "boost::ulong_long_type"; }
#endif
template <int Bits>
void do_test_exact(boost::mpl::true_ const&)
{
// Test the ::exact member:
typedef typename boost::int_t<Bits>::exact int_exact;
typedef typename boost::uint_t<Bits>::exact uint_exact;
typedef typename boost::int_t<Bits>::least least_int;
typedef typename boost::uint_t<Bits>::least least_uint;
BOOST_TEST((boost::is_same<int_exact, least_int>::value));
BOOST_TEST((boost::is_same<uint_exact, least_uint>::value));
}
template <int Bits>
void do_test_exact(boost::mpl::false_ const&)
{
// Nothing to do, type does not have an ::extact member.
}
template <int Bits>
void do_test_bits()
{
//
// Recurse to next smallest number of bits:
//
do_test_bits<Bits - 1>();
//
// Test exact types if we have them:
//
do_test_exact<Bits>(
boost::mpl::bool_<
(sizeof(unsigned char) * CHAR_BIT == Bits)
|| (sizeof(unsigned short) * CHAR_BIT == Bits)
|| (sizeof(unsigned int) * CHAR_BIT == Bits)
|| (sizeof(unsigned long) * CHAR_BIT == Bits)
#ifdef BOOST_HAS_LONG_LONG
|| (sizeof(boost::ulong_long_type) * CHAR_BIT == Bits)
#endif
>());
//
// We need to check all aspects of the members of int_t<Bits> and uint_t<Bits>:
//
typedef typename boost::int_t<Bits>::least least_int;
typedef typename boost::int_t<Bits>::least fast_int;
typedef typename boost::uint_t<Bits>::least least_uint;
typedef typename boost::uint_t<Bits>::fast fast_uint;
if(std::numeric_limits<least_int>::is_specialized)
{
BOOST_TEST(std::numeric_limits<least_int>::digits + 1 >= Bits);
}
if(std::numeric_limits<least_uint>::is_specialized)
{
BOOST_TEST(std::numeric_limits<least_uint>::digits >= Bits);
}
BOOST_TEST(sizeof(least_int) * CHAR_BIT >= Bits);
BOOST_TEST(sizeof(least_uint) * CHAR_BIT >= Bits);
BOOST_TEST(sizeof(fast_int) >= sizeof(least_int));
BOOST_TEST(sizeof(fast_uint) >= sizeof(least_uint));
//
// There should be no type smaller than least_* that also has enough bits:
//
if(!boost::is_same<signed char, least_int>::value)
{
BOOST_TEST(std::numeric_limits<signed char>::digits < Bits);
if(!boost::is_same<short, least_int>::value)
{
BOOST_TEST(std::numeric_limits<short>::digits < Bits);
if(!boost::is_same<int, least_int>::value)
{
BOOST_TEST(std::numeric_limits<int>::digits < Bits);
if(!boost::is_same<long, least_int>::value)
{
BOOST_TEST(std::numeric_limits<long>::digits < Bits);
}
}
}
}
// And again, but unsigned:
if(!boost::is_same<unsigned char, least_uint>::value)
{
BOOST_TEST(std::numeric_limits<unsigned char>::digits < Bits);
if(!boost::is_same<unsigned short, least_uint>::value)
{
BOOST_TEST(std::numeric_limits<unsigned short>::digits < Bits);
if(!boost::is_same<unsigned int, least_uint>::value)
{
BOOST_TEST(std::numeric_limits<unsigned int>::digits < Bits);
if(!boost::is_same<unsigned long, least_uint>::value)
{
BOOST_TEST(std::numeric_limits<unsigned long>::digits < Bits);
}
}
}
}
if(boost::detail::test_errors() != last_error_count)
{
last_error_count = boost::detail::test_errors();
std::cout << "Errors occurred while testing with bit count = " << Bits << std::endl;
std::cout << "Type int_t<" << Bits << ">::least was " << get_name_of_type(least_int(0)) << std::endl;
std::cout << "Type int_t<" << Bits << ">::fast was " << get_name_of_type(fast_int(0)) << std::endl;
std::cout << "Type uint_t<" << Bits << ">::least was " << get_name_of_type(least_uint(0)) << std::endl;
std::cout << "Type uint_t<" << Bits << ">::fast was " << get_name_of_type(fast_uint(0)) << std::endl;
}
}
template <>
void do_test_bits<-1>()
{
// Nothing to do here!!
}
template <class Traits, class Expected>
void test_min_max_type(Expected val)
{
typedef typename Traits::least least_type;
typedef typename Traits::fast fast_type;
BOOST_TEST((boost::is_same<least_type, Expected>::value));
BOOST_TEST(sizeof(fast_type) >= sizeof(least_type));
BOOST_TEST((std::numeric_limits<least_type>::min)() <= val);
BOOST_TEST((std::numeric_limits<least_type>::max)() >= val);
if(boost::detail::test_errors() != last_error_count)
{
last_error_count = boost::detail::test_errors();
std::cout << "Traits type is: " << typeid(Traits).name() << std::endl;
std::cout << "Least type is: " << get_name_of_type(least_type(0)) << std::endl;
std::cout << "Fast type is: " << get_name_of_type(fast_type(0)) << std::endl;
std::cout << "Expected type is: " << get_name_of_type(Expected(0)) << std::endl;
std::cout << "Required value is: " << val << std::endl;
}
}
// Test program
int main(int, char*[])
{
// Test int_t and unint_t first:
if(std::numeric_limits<boost::intmax_t>::is_specialized)
do_test_bits<std::numeric_limits<boost::uintmax_t>::digits>();
else
do_test_bits<std::numeric_limits<long>::digits>();
//
// Test min and max value types:
//
test_min_max_type<boost::int_max_value_t<SCHAR_MAX>, signed char>(SCHAR_MAX);
test_min_max_type<boost::int_min_value_t<SCHAR_MIN>, signed char>(SCHAR_MIN);
test_min_max_type<boost::uint_value_t<UCHAR_MAX>, unsigned char>(UCHAR_MAX);
#if(USHRT_MAX != UCHAR_MAX)
test_min_max_type<boost::int_max_value_t<SCHAR_MAX+1>, short>(SCHAR_MAX+1);
test_min_max_type<boost::int_min_value_t<SCHAR_MIN-1>, short>(SCHAR_MIN-1);
test_min_max_type<boost::uint_value_t<UCHAR_MAX+1>, unsigned short>(UCHAR_MAX+1);
test_min_max_type<boost::int_max_value_t<SHRT_MAX>, short>(SHRT_MAX);
test_min_max_type<boost::int_min_value_t<SHRT_MIN>, short>(SHRT_MIN);
test_min_max_type<boost::uint_value_t<USHRT_MAX>, unsigned short>(USHRT_MAX);
#endif
#if(UINT_MAX != USHRT_MAX)
test_min_max_type<boost::int_max_value_t<SHRT_MAX+1>, int>(SHRT_MAX+1);
test_min_max_type<boost::int_min_value_t<SHRT_MIN-1>, int>(SHRT_MIN-1);
test_min_max_type<boost::uint_value_t<USHRT_MAX+1>, unsigned int>(USHRT_MAX+1);
test_min_max_type<boost::int_max_value_t<INT_MAX>, int>(INT_MAX);
test_min_max_type<boost::int_min_value_t<INT_MIN>, int>(INT_MIN);
test_min_max_type<boost::uint_value_t<UINT_MAX>, unsigned int>(UINT_MAX);
#endif
#if(ULONG_MAX != UINT_MAX)
test_min_max_type<boost::int_max_value_t<INT_MAX+1L>, long>(INT_MAX+1L);
test_min_max_type<boost::int_min_value_t<INT_MIN-1L>, long>(INT_MIN-1L);
test_min_max_type<boost::uint_value_t<UINT_MAX+1uL>, unsigned long>(UINT_MAX+1uL);
test_min_max_type<boost::int_max_value_t<LONG_MAX>, long>(LONG_MAX);
test_min_max_type<boost::int_min_value_t<LONG_MIN>, long>(LONG_MIN);
test_min_max_type<boost::uint_value_t<ULONG_MAX>, unsigned long>(ULONG_MAX);
#endif
#ifndef BOOST_NO_INTEGRAL_INT64_T
#if defined(BOOST_HAS_LONG_LONG) && (defined(ULLONG_MAX) && (ULLONG_MAX != ULONG_MAX))
test_min_max_type<boost::int_max_value_t<LONG_MAX+1LL>, boost::long_long_type>(LONG_MAX+1LL);
test_min_max_type<boost::int_min_value_t<LONG_MIN-1LL>, boost::long_long_type>(LONG_MIN-1LL);
test_min_max_type<boost::uint_value_t<ULONG_MAX+1uLL>, boost::ulong_long_type>(ULONG_MAX+1uLL);
test_min_max_type<boost::int_max_value_t<LLONG_MAX>, boost::long_long_type>(LLONG_MAX);
test_min_max_type<boost::int_min_value_t<LLONG_MIN>, boost::long_long_type>(LLONG_MIN);
test_min_max_type<boost::uint_value_t<ULLONG_MAX>, boost::ulong_long_type>(ULLONG_MAX);
#endif
#if defined(BOOST_HAS_LONG_LONG) && (defined(ULONG_LONG_MAX) && (ULONG_LONG_MAX != ULONG_MAX))
test_min_max_type<boost::int_max_value_t<LONG_MAX+1LL>, boost::long_long_type>(LONG_MAX+1LL);
test_min_max_type<boost::int_min_value_t<LONG_MIN-1LL>, boost::long_long_type>(LONG_MIN-1LL);
test_min_max_type<boost::uint_value_t<ULONG_MAX+1uLL>, boost::ulong_long_type>(ULONG_MAX+1uLL);
test_min_max_type<boost::int_max_value_t<LONG_LONG_MAX>, boost::long_long_type>(LONG_LONG_MAX);
test_min_max_type<boost::int_min_value_t<LONG_LONG_MIN>, boost::long_long_type>(LONG_LONG_MIN);
test_min_max_type<boost::uint_value_t<ULONG_LONG_MAX>, boost::ulong_long_type>(ULONG_LONG_MAX);
#endif
#if defined(BOOST_HAS_LONG_LONG) && (defined(ULONGLONG_MAX) && (ULONGLONG_MAX != ULONG_MAX))
test_min_max_type<boost::int_max_value_t<LONG_MAX+1LL>, boost::long_long_type>(LONG_MAX+1LL);
test_min_max_type<boost::int_min_value_t<LONG_MIN-1LL>, boost::long_long_type>(LONG_MIN-1LL);
test_min_max_type<boost::uint_value_t<ULONG_MAX+1uLL>, boost::ulong_long_type>(ULONG_MAX+1uLL);
test_min_max_type<boost::int_max_value_t<LONGLONG_MAX>, boost::long_long_type>(LONGLONG_MAX);
test_min_max_type<boost::int_min_value_t<LONGLONG_MIN>, boost::long_long_type>(LONGLONG_MAX);
test_min_max_type<boost::uint_value_t<ULONGLONG_MAX>, boost::ulong_long_type>(ULONGLONG_MAX);
#endif
#if defined(BOOST_HAS_LONG_LONG) && (defined(_ULLONG_MAX) && defined(_LLONG_MIN) && (_ULLONG_MAX != ULONG_MAX))
test_min_max_type<boost::int_max_value_t<LONG_MAX+1LL>, boost::long_long_type>(LONG_MAX+1LL);
test_min_max_type<boost::int_min_value_t<LONG_MIN-1LL>, boost::long_long_type>(LONG_MIN-1LL);
test_min_max_type<boost::uint_value_t<ULONG_MAX+1uLL>, boost::ulong_long_type>(ULONG_MAX+1uLL);
test_min_max_type<boost::int_max_value_t<_LLONG_MAX>, boost::long_long_type>(_LLONG_MAX);
test_min_max_type<boost::int_min_value_t<_LLONG_MIN>, boost::long_long_type>(_LLONG_MIN);
test_min_max_type<boost::uint_value_t<_ULLONG_MAX>, boost::ulong_long_type>(_ULLONG_MAX);
#endif // BOOST_HAS_LONG_LONG
#endif // BOOST_NO_INTEGRAL_INT64_T
return boost::report_errors();
}
|
