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
|
// -*- C++ -*-
//===-- rotate_copy.pass.cpp ----------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14
#include "support/pstl_test_config.h"
#include <iterator>
#include <execution>
#include <algorithm>
#include "support/utils.h"
using namespace TestUtils;
template <typename T>
struct wrapper;
template <typename T>
bool
compare(const wrapper<T>& a, const wrapper<T>& b)
{
return a.t == b.t;
}
template <typename T>
bool
compare(const T& a, const T& b)
{
return a == b;
}
template <typename T>
struct wrapper
{
explicit wrapper(T t_) : t(t_) {}
wrapper&
operator=(const T& t_)
{
t = t_;
return *this;
}
friend bool
compare<T>(const wrapper<T>& a, const wrapper<T>& b);
private:
T t;
};
template <typename T, typename It1, typename It2>
struct comparator
{
using T1 = typename std::iterator_traits<It1>::value_type;
using T2 = typename std::iterator_traits<It2>::value_type;
bool
operator()(T1 a, T2 b)
{
T temp = a;
return compare(temp, b);
}
};
struct test_one_policy
{
#if defined(_PSTL_ICC_17_VC141_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN) || \
defined(_PSTL_ICC_16_VC14_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN) // dummy specialization by policy type, in case of broken configuration
template <typename Iterator1, typename Iterator2>
typename std::enable_if<is_same_iterator_category<Iterator1, std::random_access_iterator_tag>::value, void>::type
operator()(pstl::execution::unsequenced_policy, Iterator1 data_b, Iterator1 data_e, Iterator2 actual_b,
Iterator2 actual_e, std::size_t shift)
{
}
template <typename Iterator1, typename Iterator2>
typename std::enable_if<is_same_iterator_category<Iterator1, std::random_access_iterator_tag>::value, void>::type
operator()(pstl::execution::parallel_unsequenced_policy, Iterator1 data_b, Iterator1 data_e, Iterator2 actual_b,
Iterator2 actual_e, std::size_t shift)
{
}
#endif
template <typename ExecutionPolicy, typename Iterator1, typename Iterator2>
void
operator()(ExecutionPolicy&& exec, Iterator1 data_b, Iterator1 data_e, Iterator2 actual_b, Iterator2 actual_e,
std::size_t shift)
{
using namespace std;
using T = typename iterator_traits<Iterator2>::value_type;
Iterator1 data_m = std::next(data_b, shift);
fill(actual_b, actual_e, T(-123));
Iterator2 actual_return = rotate_copy(exec, data_b, data_m, data_e, actual_b);
EXPECT_TRUE(actual_return == actual_e, "wrong result of rotate_copy");
auto comparer = comparator<T, Iterator1, Iterator2>();
bool check = std::equal(data_m, data_e, actual_b, comparer);
check = check && std::equal(data_b, data_m, std::next(actual_b, std::distance(data_m, data_e)), comparer);
EXPECT_TRUE(check, "wrong effect of rotate_copy");
}
};
template <typename T1, typename T2>
void
test()
{
const std::size_t max_len = 100000;
Sequence<T2> actual(max_len, [](std::size_t i) { return T1(i); });
Sequence<T1> data(max_len, [](std::size_t i) { return T1(i); });
for (std::size_t len = 0; len < max_len; len = len <= 16 ? len + 1 : std::size_t(3.1415 * len))
{
std::size_t shifts[] = {0, 1, 2, len / 3, (2 * len) / 3, len - 1};
for (std::size_t shift : shifts)
{
if (shift > 0 && shift < len)
{
invoke_on_all_policies(test_one_policy(), data.begin(), data.begin() + len, actual.begin(),
actual.begin() + len, shift);
invoke_on_all_policies(test_one_policy(), data.cbegin(), data.cbegin() + len, actual.begin(),
actual.begin() + len, shift);
}
}
}
}
int
main()
{
test<int32_t, int8_t>();
test<uint16_t, float32_t>();
test<float64_t, int64_t>();
test<wrapper<float64_t>, wrapper<float64_t>>();
std::cout << done() << std::endl;
return 0;
}
|
