1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14
10
11 // UNSUPPORTED: libcpp-has-no-incomplete-pstl
12
13 // <algorithm>
14
15 // template<class ExecutionPolicy, class ForwardIterator, class Predicate>
16 // bool any_of(ExecutionPolicy&& exec, ForwardIterator first, ForwardIterator last,
17 // Predicate pred);
18
19 #include <algorithm>
20 #include <cassert>
21 #include <vector>
22
23 #include "test_macros.h"
24 #include "test_execution_policies.h"
25 #include "test_iterators.h"
26
27 EXECUTION_POLICY_SFINAE_TEST(any_of);
28
29 static_assert(sfinae_test_any_of<int, int*, int*, bool (*)(int)>);
30 static_assert(!sfinae_test_any_of<std::execution::parallel_policy, int*, int*, bool (*)(int)>);
31
32 template <class Iter>
33 struct Test {
34 template <class Policy>
operator ()Test35 void operator()(Policy&& policy) {
36 int a[] = {1, 2, 3, 4, 5, 6, 7, 8};
37 // simple test
38 assert(std::any_of(policy, Iter(std::begin(a)), Iter(std::end(a)), [](int i) { return i < 9; }));
39 assert(!std::any_of(policy, Iter(std::begin(a)), Iter(std::end(a)), [](int i) { return i > 8; }));
40
41 // check that an empty range works
42 assert(!std::any_of(policy, Iter(std::begin(a)), Iter(std::begin(a)), [](int) { return false; }));
43
44 // check that false is returned if no element satisfies the condition
45 assert(!std::any_of(policy, Iter(std::begin(a)), Iter(std::end(a)), [](int i) { return i == 9; }));
46
47 // check that true is returned if only one elements satisfies the condition
48 assert(std::any_of(policy, Iter(std::begin(a)), Iter(std::end(a)), [](int i) { return i == 1; }));
49
50 // check that a one-element range works
51 assert(std::any_of(policy, Iter(std::begin(a)), Iter(std::begin(a) + 1), [](int i) { return i == 1; }));
52
53 // check that a two-element range works
54 assert(std::any_of(policy, Iter(std::begin(a)), Iter(std::begin(a) + 2), [](int i) { return i == 2; }));
55
56 // check that a large number of elements works
57 std::vector<int> vec(100, 2);
58 vec[96] = 3;
59 assert(std::any_of(policy, Iter(vec.data()), Iter(vec.data() + vec.size()), [](int i) { return i == 3; }));
60 }
61 };
62
main(int,char **)63 int main(int, char**) {
64 types::for_each(types::forward_iterator_list<int*>{}, TestIteratorWithPolicies<Test>{});
65
66 return 0;
67 }
68