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<InputIterator Iter1, InputIterator Iter2, typename Compare>
13 // requires Predicate<Compare, Iter1::value_type, Iter2::value_type>
14 // && Predicate<Compare, Iter2::value_type, Iter1::value_type>
15 // bool
16 // includes(Iter1 first1, Iter1 last1, Iter2 first2, Iter2 last2, Compare comp);
17
18 #include <algorithm>
19 #include <functional>
20 #include <cassert>
21
22 #include "test_iterators.h"
23
24 template <class Iter1, class Iter2>
25 void
test()26 test()
27 {
28 int ia[] = {1, 2, 2, 3, 3, 3, 4, 4, 4, 4};
29 const unsigned sa = sizeof(ia)/sizeof(ia[0]);
30 int ib[] = {2, 4};
31 const unsigned sb = sizeof(ib)/sizeof(ib[0]);
32 int ic[] = {1, 2};
33 const unsigned sc = sizeof(ic)/sizeof(ic[0]); ((void)sc);
34 int id[] = {3, 3, 3, 3};
35 const unsigned sd = sizeof(id)/sizeof(id[0]); ((void)sd);
36
37 assert(std::includes(Iter1(ia), Iter1(ia), Iter2(ib), Iter2(ib), std::less<int>()));
38 assert(!std::includes(Iter1(ia), Iter1(ia), Iter2(ib), Iter2(ib+1), std::less<int>()));
39 assert(std::includes(Iter1(ia), Iter1(ia+1), Iter2(ib), Iter2(ib), std::less<int>()));
40 assert(std::includes(Iter1(ia), Iter1(ia+sa), Iter2(ia), Iter2(ia+sa), std::less<int>()));
41
42 assert(std::includes(Iter1(ia), Iter1(ia+sa), Iter2(ib), Iter2(ib+sb), std::less<int>()));
43 assert(!std::includes(Iter1(ib), Iter1(ib+sb), Iter2(ia), Iter2(ia+sa), std::less<int>()));
44
45 assert(std::includes(Iter1(ia), Iter1(ia+2), Iter2(ic), Iter2(ic+2), std::less<int>()));
46 assert(!std::includes(Iter1(ia), Iter1(ia+2), Iter2(ib), Iter2(ib+2), std::less<int>()));
47
48 assert(std::includes(Iter1(ia), Iter1(ia+sa), Iter2(id), Iter2(id+1), std::less<int>()));
49 assert(std::includes(Iter1(ia), Iter1(ia+sa), Iter2(id), Iter2(id+2), std::less<int>()));
50 assert(std::includes(Iter1(ia), Iter1(ia+sa), Iter2(id), Iter2(id+3), std::less<int>()));
51 assert(!std::includes(Iter1(ia), Iter1(ia+sa), Iter2(id), Iter2(id+4), std::less<int>()));
52 }
53
main()54 int main()
55 {
56 test<input_iterator<const int*>, input_iterator<const int*> >();
57 test<input_iterator<const int*>, forward_iterator<const int*> >();
58 test<input_iterator<const int*>, bidirectional_iterator<const int*> >();
59 test<input_iterator<const int*>, random_access_iterator<const int*> >();
60 test<input_iterator<const int*>, const int*>();
61
62 test<forward_iterator<const int*>, input_iterator<const int*> >();
63 test<forward_iterator<const int*>, forward_iterator<const int*> >();
64 test<forward_iterator<const int*>, bidirectional_iterator<const int*> >();
65 test<forward_iterator<const int*>, random_access_iterator<const int*> >();
66 test<forward_iterator<const int*>, const int*>();
67
68 test<bidirectional_iterator<const int*>, input_iterator<const int*> >();
69 test<bidirectional_iterator<const int*>, forward_iterator<const int*> >();
70 test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >();
71 test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >();
72 test<bidirectional_iterator<const int*>, const int*>();
73
74 test<random_access_iterator<const int*>, input_iterator<const int*> >();
75 test<random_access_iterator<const int*>, forward_iterator<const int*> >();
76 test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >();
77 test<random_access_iterator<const int*>, random_access_iterator<const int*> >();
78 test<random_access_iterator<const int*>, const int*>();
79
80 test<const int*, input_iterator<const int*> >();
81 test<const int*, forward_iterator<const int*> >();
82 test<const int*, bidirectional_iterator<const int*> >();
83 test<const int*, random_access_iterator<const int*> >();
84 test<const int*, const int*>();
85 }
86