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 Iter1, ForwardIterator Iter2>
13 //   requires HasEqualTo<Iter1::value_type, Iter2::value_type>
14 //   Iter1
15 //   find_end(Iter1 first1, Iter1 last1, Iter2 first2, Iter2 last2);
16 
17 #include <algorithm>
18 #include <cassert>
19 
20 #include "test_iterators.h"
21 
22 template <class Iter1, class Iter2>
23 void
24 test()
25 {
26     int ia[] = {0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 0, 1, 2, 3, 0, 1, 2, 0, 1, 0};
27     const unsigned sa = sizeof(ia)/sizeof(ia[0]);
28     int b[] = {0};
29     assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(b), Iter2(b+1)) == Iter1(ia+sa-1));
30     int c[] = {0, 1};
31     assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(c), Iter2(c+2)) == Iter1(ia+18));
32     int d[] = {0, 1, 2};
33     assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(d), Iter2(d+3)) == Iter1(ia+15));
34     int e[] = {0, 1, 2, 3};
35     assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(e), Iter2(e+4)) == Iter1(ia+11));
36     int f[] = {0, 1, 2, 3, 4};
37     assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(f), Iter2(f+5)) == Iter1(ia+6));
38     int g[] = {0, 1, 2, 3, 4, 5};
39     assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(g), Iter2(g+6)) == Iter1(ia));
40     int h[] = {0, 1, 2, 3, 4, 5, 6};
41     assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(h), Iter2(h+7)) == Iter1(ia+sa));
42     assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(b), Iter2(b)) == Iter1(ia+sa));
43     assert(std::find_end(Iter1(ia), Iter1(ia), Iter2(b), Iter2(b+1)) == Iter1(ia));
44 }
45 
46 int main()
47 {
48     test<forward_iterator<const int*>, forward_iterator<const int*> >();
49     test<forward_iterator<const int*>, bidirectional_iterator<const int*> >();
50     test<forward_iterator<const int*>, random_access_iterator<const int*> >();
51     test<bidirectional_iterator<const int*>, forward_iterator<const int*> >();
52     test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >();
53     test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >();
54     test<random_access_iterator<const int*>, forward_iterator<const int*> >();
55     test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >();
56     test<random_access_iterator<const int*>, random_access_iterator<const int*> >();
57 }
58