1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 // <algorithm>
11
12 // template<ForwardIterator Iter, EquivalenceRelation<auto, Iter::value_type> Pred>
13 // requires CopyConstructible<Pred>
14 // Iter
15 // adjacent_find(Iter first, Iter last, Pred pred);
16
17 #include <algorithm>
18 #include <functional>
19 #include <cassert>
20
21 #include "test_iterators.h"
22
main()23 int main()
24 {
25 int ia[] = {0, 1, 2, 2, 0, 1, 2, 3};
26 const unsigned sa = sizeof(ia)/sizeof(ia[0]);
27 assert(std::adjacent_find(forward_iterator<const int*>(ia),
28 forward_iterator<const int*>(ia + sa),
29 std::equal_to<int>()) ==
30 forward_iterator<const int*>(ia+2));
31 assert(std::adjacent_find(forward_iterator<const int*>(ia),
32 forward_iterator<const int*>(ia),
33 std::equal_to<int>()) ==
34 forward_iterator<const int*>(ia));
35 assert(std::adjacent_find(forward_iterator<const int*>(ia+3),
36 forward_iterator<const int*>(ia + sa),
37 std::equal_to<int>()) ==
38 forward_iterator<const int*>(ia+sa));
39 }
40