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
|
// -*- C++ -*-
//===-- count.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
// Tests for count and count_if
#include "support/pstl_test_config.h"
#include <execution>
#include <algorithm>
#include "support/utils.h"
using namespace TestUtils;
struct test_count
{
template <typename Policy, typename Iterator, typename T>
void
operator()(Policy&& exec, Iterator first, Iterator last, T needle)
{
auto expected = std::count(first, last, needle);
auto result = std::count(exec, first, last, needle);
EXPECT_EQ(expected, result, "wrong count result");
}
};
struct test_count_if
{
template <typename Policy, typename Iterator, typename Predicate>
void
operator()(Policy&& exec, Iterator first, Iterator last, Predicate pred)
{
auto expected = std::count_if(first, last, pred);
auto result = std::count_if(exec, first, last, pred);
EXPECT_EQ(expected, result, "wrong count_if result");
}
};
template <typename T>
class IsEqual
{
T value;
public:
IsEqual(T value_, OddTag) : value(value_) {}
bool
operator()(const T& x) const
{
return x == value;
}
};
template <typename In, typename T, typename Predicate, typename Convert>
void
test(T needle, Predicate pred, Convert convert)
{
// Try sequences of various lengths.
for (size_t n = 0; n <= 100000; n = n <= 16 ? n + 1 : size_t(3.1415 * n))
{
Sequence<In> in(n, [=](size_t k) -> In {
// Sprinkle "42" and "50" early, so that short sequences have non-zero count.
return convert((n - k - 1) % 3 == 0 ? 42 : (n - k - 2) % 5 == 0 ? 50 : 3 * (int(k) % 1000 - 500));
});
invoke_on_all_policies(test_count(), in.begin(), in.end(), needle);
invoke_on_all_policies(test_count_if(), in.begin(), in.end(), pred);
invoke_on_all_policies(test_count(), in.cbegin(), in.cend(), needle);
invoke_on_all_policies(test_count_if(), in.cbegin(), in.cend(), pred);
}
}
struct test_non_const
{
template <typename Policy, typename Iterator>
void
operator()(Policy&& exec, Iterator iter)
{
auto is_even = [&](float64_t v) {
uint32_t i = (uint32_t)v;
return i % 2 == 0;
};
count_if(exec, iter, iter, non_const(is_even));
}
};
int
main()
{
test<int32_t>(42, IsEqual<int32_t>(50, OddTag()), [](int32_t j) { return j; });
#if !defined(_PSTL_ICC_16_17_TEST_REDUCTION_RELEASE_BROKEN)
test<int32_t>(42, [](const int32_t&) { return true; }, [](int32_t j) { return j; });
#endif
test<float64_t>(42, IsEqual<float64_t>(50, OddTag()), [](int32_t j) { return float64_t(j); });
test<Number>(Number(42, OddTag()), IsEqual<Number>(Number(50, OddTag()), OddTag()),
[](int32_t j) { return Number(j, OddTag()); });
test_algo_basic_single<int32_t>(run_for_rnd_fw<test_non_const>());
std::cout << done() << std::endl;
return 0;
}
|
