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
|
///////////////////////////////////////////////////////////////
// Copyright 2012 John Maddock. 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_
//
// Compare arithmetic results using fixed_int to GMP results.
//
#ifdef _MSC_VER
# define _SCL_SECURE_NO_WARNINGS
#endif
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/random/mersenne_twister.hpp>
#include <boost/random/uniform_int.hpp>
#include <boost/timer.hpp>
#include "test.hpp"
#include <iostream>
#include <iomanip>
#include <sstream>
#include <boost/archive/text_iarchive.hpp>
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/binary_iarchive.hpp>
#include <boost/archive/binary_oarchive.hpp>
#include <boost/exception/all.hpp>
template <class T>
T generate_random(unsigned bits_wanted)
{
static boost::random::mt19937 gen;
typedef boost::random::mt19937::result_type random_type;
T max_val;
unsigned digits;
if(std::numeric_limits<T>::is_bounded && (bits_wanted == (unsigned)std::numeric_limits<T>::digits))
{
max_val = (std::numeric_limits<T>::max)();
digits = std::numeric_limits<T>::digits;
}
else
{
max_val = T(1) << bits_wanted;
digits = bits_wanted;
}
unsigned bits_per_r_val = std::numeric_limits<random_type>::digits - 1;
while((random_type(1) << bits_per_r_val) > (gen.max)()) --bits_per_r_val;
unsigned terms_needed = digits / bits_per_r_val + 1;
T val = 0;
for(unsigned i = 0; i < terms_needed; ++i)
{
val *= (gen.max)();
val += gen();
}
val %= max_val;
return val;
}
template <class T>
void test_neg(const T& x, const boost::mpl::true_&)
{
T val = -x;
#ifndef BOOST_NO_EXCEPTIONS
try{
#endif
std::stringstream ss;
boost::archive::text_oarchive oa(ss);
oa << static_cast<const T&>(val);
boost::archive::text_iarchive ia(ss);
T val2;
ia >> val2;
BOOST_CHECK_EQUAL(val, val2);
ss.clear();
boost::archive::binary_oarchive ob(ss);
ob << static_cast<const T&>(val);
boost::archive::binary_iarchive ib(ss);
ib >> val2;
BOOST_CHECK_EQUAL(val, val2);
#ifndef BOOST_NO_EXCEPTIONS
}
catch(const boost::exception& e)
{
std::cout << "Caught boost::exception with:\n";
std::cout << diagnostic_information(e);
}
catch(const std::exception& e)
{
std::cout << "Caught std::exception with:\n";
std::cout << e.what() << std::endl;
}
#endif
}
template <class T>
void test_neg(const T& , const boost::mpl::false_&){}
template <class T>
void test()
{
using namespace boost::multiprecision;
boost::random::mt19937 gen;
boost::uniform_int<> d(3, std::numeric_limits<T>::is_bounded ? std::numeric_limits<T>::digits : 3000);
boost::timer tim;
while(true)
{
T val = generate_random<T>(d(gen));
#ifndef BOOST_NO_EXCEPTIONS
try
{
#endif
std::stringstream ss;
boost::archive::text_oarchive oa(ss);
oa << static_cast<const T&>(val);
boost::archive::text_iarchive ia(ss);
T val2;
ia >> val2;
BOOST_CHECK_EQUAL(val, val2);
ss.clear();
boost::archive::binary_oarchive ob(ss);
ob << static_cast<const T&>(val);
boost::archive::binary_iarchive ib(ss);
ib >> val2;
BOOST_CHECK_EQUAL(val, val2);
#ifndef BOOST_NO_EXCEPTIONS
}
catch(const boost::exception& e)
{
std::cout << "Caught boost::exception with:\n";
std::cout << diagnostic_information(e);
}
catch(const std::exception& e)
{
std::cout << "Caught std::exception with:\n";
std::cout << e.what() << std::endl;
}
#endif
test_neg(val, boost::mpl::bool_<std::numeric_limits<T>::is_signed>());
//
// Check to see if test is taking too long.
// Tests run on the compiler farm time out after 300 seconds,
// so don't get too close to that:
//
if(tim.elapsed() > 150)
{
std::cout << "Timeout reached, aborting tests now....\n";
break;
}
}
}
#if !defined(TEST1) && !defined(TEST2) && !defined(TEST3) && !defined(TEST4)
# define TEST1
# define TEST2
# define TEST3
# define TEST4
#endif
int main()
{
using namespace boost::multiprecision;
#ifdef TEST1
test<cpp_int>();
#endif
#ifdef TEST2
test<number<cpp_int_backend<61, 61, unsigned_magnitude, unchecked, void> > >();
#endif
#ifdef TEST3
test<number<cpp_int_backend<120, 120, signed_magnitude, unchecked, void> > >();
#endif
#ifdef TEST4
test<int1024_t>();
#endif
return boost::report_errors();
}
|
