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 // <algorithm>
10
11 // template <class InputIterator, class Predicate>
12 // constexpr bool // constexpr after C++17
13 // all_of(InputIterator first, InputIterator last, Predicate pred);
14
15 #include <algorithm>
16 #include <cassert>
17
18 #include "test_macros.h"
19 #include "test_iterators.h"
20
21 struct test1
22 {
operator ()test123 TEST_CONSTEXPR bool operator()(const int& i) const
24 {
25 return i % 2 == 0;
26 }
27 };
28
29 #if TEST_STD_VER > 17
test_constexpr()30 TEST_CONSTEXPR bool test_constexpr() {
31 int ia[] = {2, 4, 6, 8};
32 int ib[] = {2, 4, 5, 8};
33 return std::all_of(std::begin(ia), std::end(ia), test1())
34 && !std::all_of(std::begin(ib), std::end(ib), test1())
35 ;
36 }
37 #endif
38
main(int,char **)39 int main(int, char**)
40 {
41 {
42 int ia[] = {2, 4, 6, 8};
43 const unsigned sa = sizeof(ia)/sizeof(ia[0]);
44 assert(std::all_of(cpp17_input_iterator<const int*>(ia),
45 cpp17_input_iterator<const int*>(ia + sa), test1()) == true);
46 assert(std::all_of(cpp17_input_iterator<const int*>(ia),
47 cpp17_input_iterator<const int*>(ia), test1()) == true);
48 }
49 {
50 const int ia[] = {2, 4, 5, 8};
51 const unsigned sa = sizeof(ia)/sizeof(ia[0]);
52 assert(std::all_of(cpp17_input_iterator<const int*>(ia),
53 cpp17_input_iterator<const int*>(ia + sa), test1()) == false);
54 assert(std::all_of(cpp17_input_iterator<const int*>(ia),
55 cpp17_input_iterator<const int*>(ia), test1()) == true);
56 }
57
58 #if TEST_STD_VER > 17
59 static_assert(test_constexpr());
60 #endif
61
62 return 0;
63 }
64