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
23template <class Iter1, class Iter2>
24void
25test()
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
53int 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