File: test_uintwide_t_boost_backend.cpp

package info (click to toggle)
gringo 5.8.0-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 32,128 kB
  • sloc: cpp: 210,867; ansic: 37,507; python: 11,271; yacc: 825; javascript: 627; sh: 368; xml: 364; makefile: 102
file content (163 lines) | stat: -rw-r--r-- 5,694 bytes parent folder | download | duplicates (3)
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
///////////////////////////////////////////////////////////////////////////////
//  Copyright Christopher Kormanyos 2019 - 2024.
//  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)
//

#include <boost/version.hpp>

#if !defined(BOOST_VERSION)
#error BOOST_VERSION is not defined. Ensure that <boost/version.hpp> is properly included.
#endif

#if ((BOOST_VERSION >= 107900) && !defined(BOOST_MP_STANDALONE))
#define BOOST_MP_STANDALONE
#endif

#if ((BOOST_VERSION >= 108000) && !defined(BOOST_NO_EXCEPTIONS))
#define BOOST_NO_EXCEPTIONS
#endif

#if (((BOOST_VERSION == 108000) || (BOOST_VERSION == 108100)) && defined(BOOST_NO_EXCEPTIONS))
#if defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wsometimes-uninitialized"
#endif
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4701)
#endif
#endif

#if (BOOST_VERSION < 108000)
#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wsign-conversion"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
#endif

#if (defined(__GNUC__) && !defined(__clang__) && (__GNUC__ >= 12))
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wrestrict"
#endif

#if (BOOST_VERSION < 108000)
#if ((defined(__clang__) && (__clang_major__ > 9)) && !defined(__APPLE__))
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-copy"
#endif
#endif

#include <boost/multiprecision/cpp_int.hpp>
#include <boost/multiprecision/uintwide_t_backend.hpp>

#include <test/test_uintwide_t.h>

using local_uint_type =
  #if defined(WIDE_INTEGER_NAMESPACE)
  boost::multiprecision::number<boost::multiprecision::uintwide_t_backend<static_cast<WIDE_INTEGER_NAMESPACE::math::wide_integer::size_t>(UINT32_C(1024))>,
                                boost::multiprecision::et_off>;
  #else
  boost::multiprecision::number<boost::multiprecision::uintwide_t_backend<static_cast<::math::wide_integer::size_t>(UINT32_C(1024))>,
                                boost::multiprecision::et_off>;
  #endif

using boost_uint_backend_type =
  boost::multiprecision::cpp_int_backend<static_cast<unsigned>(UINT32_C(1024)),
                                         static_cast<unsigned>(UINT32_C(1024)),
                                         boost::multiprecision::unsigned_magnitude>;

using boost_uint_type = boost::multiprecision::number<boost_uint_backend_type,
                                                      boost::multiprecision::et_off>;

#if defined(WIDE_INTEGER_NAMESPACE)
auto WIDE_INTEGER_NAMESPACE::math::wide_integer::test_uintwide_t_boost_backend() -> bool
#else
auto ::math::wide_integer::test_uintwide_t_boost_backend() -> bool
#endif
{
  bool result_is_ok = true;

  // Test a non-trivial calculation. A naive algorithm for calculating
  // a factorial (in this case 100!) has been selected.
  {
    local_uint_type u = 1U;

    for(auto i = static_cast<std::size_t>(UINT32_C(2)); i <= static_cast<std::size_t>(UINT32_C(100)); ++i)
    {
      u *= i;
    }

    const local_uint_type local_control("93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000");
    const boost_uint_type boost_control("93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000");

    const bool local_control_is_ok = (u == local_control);

    {
      std::stringstream strm_lhs;
      strm_lhs << u;

      std::stringstream strm_rhs;
      strm_rhs << boost_control;

      const bool boost_control_is_ok = (strm_lhs.str() == strm_rhs.str());

      result_is_ok = ((local_control_is_ok && boost_control_is_ok) && result_is_ok);
    }

    // Test divide-by-limb.
    u /= static_cast<std::uint8_t>(UINT8_C(10));

    result_is_ok = ((u == local_uint_type("9332621544394415268169923885626670049071596826438162146859296389521759999322991560894146397615651828625369792082722375825118521091686400000000000000000000000")) && result_is_ok);

    // Test full multiplication.
    u *= u;

    result_is_ok = ((u == local_uint_type("87097824890894800794165901619444858655697206439408401342159325362433799963465833258779670963327549206446903807622196074763642894114359201905739606775078813946074899053317297580134329929871847646073758894343134833829668015151562808541626917661957374931734536035195944960000000000000000000000000000000000000000000000")) && result_is_ok);
  }

  // Test a very simple constexpr example.
  {
    constexpr local_uint_type cu { "123" };

    constexpr bool result_cu_is_ok = (cu == 123U); // NOLINT(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)

    result_is_ok = (result_cu_is_ok && result_is_ok);

    static_assert(result_cu_is_ok, "Error: test_uintwide_t_boost_backend not OK!");
  }

  return result_is_ok;
}

#if (BOOST_VERSION < 108000)
#if ((defined(__clang__) && (__clang_major__ > 9)) && !defined(__APPLE__))
#pragma GCC diagnostic pop
#endif
#endif

#if (defined(__GNUC__) && !defined(__clang__) && (__GNUC__ >= 12))
#pragma GCC diagnostic pop
#endif

#if (BOOST_VERSION < 108000)
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#pragma GCC diagnostic pop
#pragma GCC diagnostic pop
#endif
#endif

#if (((BOOST_VERSION == 108000) || (BOOST_VERSION == 108100)) && defined(BOOST_NO_EXCEPTIONS))
#if defined(__clang__)
#pragma GCC diagnostic pop
#endif
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
#endif