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
|
///////////////////////////////////////////////////////////////
// Copyright 2012 John Maddock. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt
#ifdef _MSC_VER
#define _SCL_SECURE_NO_WARNINGS
#endif
#if defined(HAS_MPFR)
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/random/mersenne_twister.hpp>
#include <boost/random/uniform_int.hpp>
#include "test.hpp"
#if defined(HAS_GMP)
#include <boost/multiprecision/gmp.hpp>
#endif
#if defined(HAS_MPFR)
#include <boost/multiprecision/mpfr.hpp>
#endif
#if defined(HAS_MPFI)
#include <boost/multiprecision/mpfi.hpp>
#endif
#ifdef HAS_TOMMATH
#include <boost/multiprecision/tommath.hpp>
#endif
#ifdef HAS_FLOAT128
#include <boost/multiprecision/float128.hpp>
#endif
#include <boost/multiprecision/cpp_bin_float.hpp>
#include <boost/multiprecision/cpp_dec_float.hpp>
using namespace boost::multiprecision;
#ifdef BOOST_MSVC
#pragma warning(disable : 4127)
#endif
template <class T>
T generate_random()
{
typedef int e_type;
static boost::random::mt19937 gen;
T val = gen();
T prev_val = -1;
while (val != prev_val)
{
val *= (gen.max)();
prev_val = val;
val += gen();
}
e_type e;
val = frexp(val, &e);
static boost::random::uniform_int_distribution<e_type> ui(-20, 20);
return ldexp(val, ui(gen));
}
template <class From, class To>
void test_convert_neg_int(From from, const std::integral_constant<bool, true>&)
{
from = -from;
To t3(from);
To t4 = from.template convert_to<To>();
BOOST_CHECK_EQUAL(From(trunc(from)), From(t3));
BOOST_CHECK_EQUAL(From(trunc(from)), From(t4));
}
template <class From, class To>
void test_convert_neg_int(From const&, const std::integral_constant<bool, false>&)
{
}
template <class From, class To>
void test_convert_imp(std::integral_constant<int, number_kind_floating_point> const&, std::integral_constant<int, number_kind_integer> const&)
{
for (unsigned i = 0; i < 100; ++i)
{
From from = generate_random<From>();
To t1(from);
To t2 = from.template convert_to<To>();
BOOST_CHECK_EQUAL(From(trunc(from)), From(t1));
BOOST_CHECK_EQUAL(From(trunc(from)), From(t2));
test_convert_neg_int<From, To>(from, std::integral_constant<bool, std::numeric_limits<From>::is_signed && std::numeric_limits<To>::is_signed > ());
}
}
template <class From, class To>
void test_convert_neg_rat(From from, const std::integral_constant<bool, true>&)
{
from = -from;
To t3(from);
To t4 = from.template convert_to<To>();
BOOST_CHECK_EQUAL(From(t3), from);
BOOST_CHECK_EQUAL(From(t4), from);
}
template <class From, class To>
void test_convert_rat_int(From const&, const std::integral_constant<bool, false>&)
{
}
template <class From, class To>
void test_convert_imp(std::integral_constant<int, number_kind_floating_point> const&, std::integral_constant<int, number_kind_rational> const&)
{
for (unsigned i = 0; i < 100; ++i)
{
From from = generate_random<From>();
To t1(from);
To t2 = from.template convert_to<To>();
BOOST_CHECK_EQUAL(From(t1), from);
BOOST_CHECK_EQUAL(From(t2), from);
test_convert_neg_rat<From, To>(from, std::integral_constant<bool, std::numeric_limits<From>::is_signed && std::numeric_limits<To>::is_signed > ());
}
}
template <class From, class To>
void test_convert_neg_float(From from, const std::integral_constant<bool, true>&)
{
from = -from;
To t3(from);
To t4 = from.template convert_to<To>();
To answer(from.str());
To tol = (std::max)(std::numeric_limits<To>::epsilon(), To(std::numeric_limits<From>::epsilon())) * 2;
BOOST_CHECK_CLOSE_FRACTION(t3, answer, tol);
BOOST_CHECK_CLOSE_FRACTION(t4, answer, tol);
}
template <class From, class To>
void test_convert_neg_float(From const&, const std::integral_constant<bool, false>&)
{
}
template <class From, class To>
void test_convert_imp(std::integral_constant<int, number_kind_floating_point> const&, std::integral_constant<int, number_kind_floating_point> const&)
{
for (unsigned i = 0; i < 100; ++i)
{
From from = generate_random<From>();
To t1(from);
To t2 = from.template convert_to<To>();
To answer(from.str());
To tol = (std::max)(std::numeric_limits<To>::epsilon(), To(std::numeric_limits<From>::epsilon())) * 2;
BOOST_CHECK_CLOSE_FRACTION(t1, answer, tol);
BOOST_CHECK_CLOSE_FRACTION(t2, answer, tol);
test_convert_neg_float<From, To>(from, std::integral_constant<bool, std::numeric_limits<From>::is_signed && std::numeric_limits<To>::is_signed > ());
}
}
template <class From, class To>
void test_convert()
{
test_convert_imp<From, To>(typename number_category<From>::type(), typename number_category<To>::type());
}
int main()
{
test_convert<mpfr_float_50, cpp_int>();
test_convert<mpfr_float_50, int128_t>();
test_convert<mpfr_float_50, uint128_t>();
test_convert<mpfr_float_50, cpp_rational>();
test_convert<mpfr_float_50, cpp_dec_float_50>();
#if defined(HAS_GMP)
test_convert<mpfr_float_50, mpz_int>();
test_convert<mpfr_float_50, mpq_rational>();
test_convert<mpfr_float_50, mpf_float_50>();
#endif
#if defined(HAS_MPFI)
test_convert<mpfr_float_50, mpfi_float_50>();
#endif
#ifdef HAS_TOMMATH
test_convert<mpfr_float_50, tom_int>();
test_convert<mpfr_float_50, tom_rational>();
#endif
#ifdef HAS_FLOAT128
test_convert<mpfr_float_50, float128>();
#endif
return boost::report_errors();
}
#else
int main() { return 0; }
#endif
|
