1 // -*- C++ -*-
2 //===-- any_of.pass.cpp ---------------------------------------------------===//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
9
10 // UNSUPPORTED: c++03, c++11, c++14
11
12 #include "support/pstl_test_config.h"
13
14 #include <execution>
15 #include <algorithm>
16
17 #include "support/utils.h"
18
19 /*
20 TODO: consider implementing the following tests for a better code coverage
21 - correctness
22 - bad input argument (if applicable)
23 - data corruption around/of input and output
24 - correctly work with nested parallelism
25 - check that algorithm does not require anything more than is described in its requirements section
26 */
27
28 using namespace TestUtils;
29
30 struct test_any_of
31 {
32 template <typename ExecutionPolicy, typename Iterator, typename Predicate>
33 void
operator ()test_any_of34 operator()(ExecutionPolicy&& exec, Iterator begin, Iterator end, Predicate pred, bool expected)
35 {
36
37 auto actualr = std::any_of(exec, begin, end, pred);
38 EXPECT_EQ(expected, actualr, "result for any_of");
39 }
40 };
41
42 template <typename T>
43 void
test(size_t bits)44 test(size_t bits)
45 {
46 for (size_t n = 0; n <= 100000; n = n <= 16 ? n + 1 : size_t(3.1415 * n))
47 {
48
49 // Sequence of odd values
50 Sequence<T> in(n, [n, bits](size_t) { return T(2 * HashBits(n, bits - 1) ^ 1); });
51
52 // Even value, or false when T is bool.
53 T spike(2 * HashBits(n, bits - 1));
54 Sequence<T> inCopy(in);
55
56 invoke_on_all_policies(test_any_of(), in.begin(), in.end(), is_equal_to<T>(spike), false);
57 invoke_on_all_policies(test_any_of(), in.cbegin(), in.cend(), is_equal_to<T>(spike), false);
58 EXPECT_EQ(in, inCopy, "any_of modified input sequence");
59 if (n > 0)
60 {
61 // Sprinkle in a hit
62 in[2 * n / 3] = spike;
63 invoke_on_all_policies(test_any_of(), in.begin(), in.end(), is_equal_to<T>(spike), true);
64 invoke_on_all_policies(test_any_of(), in.cbegin(), in.cend(), is_equal_to<T>(spike), true);
65
66 // Sprinkle in a few more hits
67 in[n / 2] = spike;
68 in[n / 3] = spike;
69 invoke_on_all_policies(test_any_of(), in.begin(), in.end(), is_equal_to<T>(spike), true);
70 invoke_on_all_policies(test_any_of(), in.cbegin(), in.cend(), is_equal_to<T>(spike), true);
71 }
72 }
73 }
74
75 struct test_non_const
76 {
77 template <typename Policy, typename Iterator>
78 void
operator ()test_non_const79 operator()(Policy&& exec, Iterator iter)
80 {
81 auto is_even = [&](float64_t v) {
82 uint32_t i = (uint32_t)v;
83 return i % 2 == 0;
84 };
85 any_of(exec, iter, iter, non_const(is_even));
86 }
87 };
88
89 int
main()90 main()
91 {
92 test<int32_t>(8 * sizeof(int32_t));
93 test<uint16_t>(8 * sizeof(uint16_t));
94 test<float64_t>(53);
95 #if !defined(_PSTL_ICC_16_17_TEST_REDUCTION_BOOL_TYPE_RELEASE_64_BROKEN)
96 test<bool>(1);
97 #endif
98
99 test_algo_basic_single<int32_t>(run_for_rnd_fw<test_non_const>());
100
101 std::cout << done() << std::endl;
102 return 0;
103 }
104