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
28using namespace TestUtils;
29
30struct test_any_of
31{
32 template <typename ExecutionPolicy, typename Iterator, typename Predicate>
33 void
34 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
42template <typename T>
43void
44test(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(i: n, bits: bits - 1) ^ 1); });
51
52 // Even value, or false when T is bool.
53 T spike(2 * HashBits(i: n, bits: 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
75struct test_non_const
76{
77 template <typename Policy, typename Iterator>
78 void
79 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
89int
90main()
91{
92 test<int32_t>(bits: 8 * sizeof(int32_t));
93 test<uint16_t>(bits: 8 * sizeof(uint16_t));
94 test<float64_t>(bits: 53);
95#if !defined(_PSTL_ICC_16_17_TEST_REDUCTION_BOOL_TYPE_RELEASE_64_BROKEN)
96 test<bool>(bits: 1);
97#endif
98
99 test_algo_basic_single<int32_t>(f: run_for_rnd_fw<test_non_const>());
100
101 std::cout << done() << std::endl;
102 return 0;
103}
104

source code of pstl/test/std/algorithms/alg.nonmodifying/any_of.pass.cpp