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