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
24template <class Iter1, class Iter2>
25void
26test()
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]);
34    int id[] = {3, 3, 3, 3};
35    const unsigned sd = sizeof(id)/sizeof(id[0]);
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
54int 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