inplace_merge.pass.cpp
6.1 KB
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
// -*- C++ -*-
//===-- inplace_merge.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++98, c++03, c++11, c++14
#include "support/pstl_test_config.h"
#include <execution>
#include <algorithm>
#include "support/utils.h"
using namespace TestUtils;
struct test_one_policy
{
#if _PSTL_ICC_17_VC141_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN || \
_PSTL_ICC_16_VC14_TEST_SIMD_LAMBDA_DEBUG_32_BROKEN // dummy specialization by policy type, in case of broken configuration
template <typename BiDirIt1, typename Size, typename Generator1, typename Generator2, typename Compare>
void
operator()(pstl::execution::unsequenced_policy, BiDirIt1 first1, BiDirIt1 last1, BiDirIt1 first2, BiDirIt1 last2,
Size n, Size m, Generator1 generator1, Generator2 generator2, Compare comp)
{
}
template <typename BiDirIt1, typename Size, typename Generator1, typename Generator2, typename Compare>
void
operator()(pstl::execution::parallel_unsequenced_policy, BiDirIt1 first1, BiDirIt1 last1, BiDirIt1 first2,
BiDirIt1 last2, Size n, Size m, Generator1 generator1, Generator2 generator2, Compare comp)
{
}
#endif
// inplace_merge works with bidirectional iterators at least
template <typename Policy, typename BiDirIt1, typename Size, typename Generator1, typename Generator2,
typename Compare>
typename std::enable_if<!is_same_iterator_category<BiDirIt1, std::forward_iterator_tag>::value, void>::type
operator()(Policy&& exec, BiDirIt1 first1, BiDirIt1 last1, BiDirIt1 first2, BiDirIt1 last2, Size n, Size m,
Generator1 generator1, Generator2 generator2, Compare comp)
{
const BiDirIt1 mid1 = std::next(first1, m);
fill_data(first1, mid1, generator1);
fill_data(mid1, last1, generator2);
const BiDirIt1 mid2 = std::next(first2, m);
fill_data(first2, mid2, generator1);
fill_data(mid2, last2, generator2);
std::inplace_merge(first1, mid1, last1, comp);
std::inplace_merge(exec, first2, mid2, last2, comp);
EXPECT_EQ_N(first1, first2, n, "wrong effect from inplace_merge with predicate");
}
template <typename Policy, typename BiDirIt1, typename Size, typename Generator1, typename Generator2,
typename Compare>
typename std::enable_if<is_same_iterator_category<BiDirIt1, std::forward_iterator_tag>::value, void>::type
operator()(Policy&&, BiDirIt1, BiDirIt1, BiDirIt1, BiDirIt1, Size, Size, Generator1, Generator2, Compare)
{
}
};
template <typename T, typename Generator1, typename Generator2, typename Compare>
void
test_by_type(Generator1 generator1, Generator2 generator2, Compare comp)
{
using namespace std;
size_t max_size = 100000;
Sequence<T> in1(max_size, [](size_t v) { return T(v); });
Sequence<T> exp(max_size, [](size_t v) { return T(v); });
size_t m;
for (size_t n = 0; n <= max_size; n = n <= 16 ? n + 1 : size_t(3.1415 * n))
{
m = 0;
invoke_on_all_policies(test_one_policy(), in1.begin(), in1.begin() + n, exp.begin(), exp.begin() + n, n, m,
generator1, generator2, comp);
m = n / 3;
invoke_on_all_policies(test_one_policy(), in1.begin(), in1.begin() + n, exp.begin(), exp.begin() + n, n, m,
generator1, generator2, comp);
m = 2 * n / 3;
invoke_on_all_policies(test_one_policy(), in1.begin(), in1.begin() + n, exp.begin(), exp.begin() + n, n, m,
generator1, generator2, comp);
}
}
template <typename T>
struct LocalWrapper
{
explicit LocalWrapper(int32_t k) : my_val(k) {}
LocalWrapper(LocalWrapper&& input) { my_val = std::move(input.my_val); }
LocalWrapper&
operator=(LocalWrapper&& input)
{
my_val = std::move(input.my_val);
return *this;
}
bool
operator<(const LocalWrapper<T>& w) const
{
return my_val < w.my_val;
}
friend bool
operator==(const LocalWrapper<T>& x, const LocalWrapper<T>& y)
{
return x.my_val == y.my_val;
}
friend std::ostream&
operator<<(std::ostream& stream, const LocalWrapper<T>& input)
{
return stream << input.my_val;
}
private:
T my_val;
};
template <typename T>
struct test_non_const
{
template <typename Policy, typename Iterator>
void
operator()(Policy&& exec, Iterator iter)
{
invoke_if(exec, [&]() { inplace_merge(exec, iter, iter, iter, non_const(std::less<T>())); });
}
};
int
main()
{
test_by_type<float64_t>([](int32_t i) { return -2 * i; }, [](int32_t i) { return -(2 * i + 1); },
[](const float64_t x, const float64_t y) { return x > y; });
test_by_type<int32_t>([](int32_t i) { return 10 * i; }, [](int32_t i) { return i + 1; }, std::less<int32_t>());
test_by_type<LocalWrapper<float32_t>>([](int32_t i) { return LocalWrapper<float32_t>(2 * i + 1); },
[](int32_t i) { return LocalWrapper<float32_t>(2 * i); },
std::less<LocalWrapper<float32_t>>());
test_algo_basic_single<int32_t>(run_for_rnd_bi<test_non_const<int32_t>>());
test_by_type<MemoryChecker>(
[](std::size_t idx){ return MemoryChecker{std::int32_t(idx * 2)}; },
[](std::size_t idx){ return MemoryChecker{std::int32_t(idx * 2 + 1)}; },
[](const MemoryChecker& val1, const MemoryChecker& val2){ return val1.value() == val2.value(); });
EXPECT_FALSE(MemoryChecker::alive_objects() < 0, "wrong effect from inplace_merge: number of ctors calls < num of dtors calls");
EXPECT_FALSE(MemoryChecker::alive_objects() > 0, "wrong effect from inplace_merge: number of ctors calls > num of dtors calls");
std::cout << done() << std::endl;
return 0;
}