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<BidirectionalIterator InIter, OutputIterator<auto, InIter::reference> OutIter>
13//   OutIter
14//   reverse_copy(InIter first, InIter last, OutIter result);
15
16#include <algorithm>
17#include <cassert>
18
19#include "test_iterators.h"
20
21template <class InIter, class OutIter>
22void
23test()
24{
25    const int ia[] = {0};
26    const unsigned sa = sizeof(ia)/sizeof(ia[0]);
27    int ja[sa] = {-1};
28    OutIter r = std::reverse_copy(InIter(ia), InIter(ia), OutIter(ja));
29    assert(base(r) == ja);
30    assert(ja[0] == -1);
31    r = std::reverse_copy(InIter(ia), InIter(ia+sa), OutIter(ja));
32    assert(ja[0] == 0);
33
34    const int ib[] = {0, 1};
35    const unsigned sb = sizeof(ib)/sizeof(ib[0]);
36    int jb[sb] = {-1};
37    r = std::reverse_copy(InIter(ib), InIter(ib+sb), OutIter(jb));
38    assert(base(r) == jb+sb);
39    assert(jb[0] == 1);
40    assert(jb[1] == 0);
41
42    const int ic[] = {0, 1, 2};
43    const unsigned sc = sizeof(ic)/sizeof(ic[0]);
44    int jc[sc] = {-1};
45    r = std::reverse_copy(InIter(ic), InIter(ic+sc), OutIter(jc));
46    assert(base(r) == jc+sc);
47    assert(jc[0] == 2);
48    assert(jc[1] == 1);
49    assert(jc[2] == 0);
50
51    int id[] = {0, 1, 2, 3};
52    const unsigned sd = sizeof(id)/sizeof(id[0]);
53    int jd[sd] = {-1};
54    r = std::reverse_copy(InIter(id), InIter(id+sd), OutIter(jd));
55    assert(base(r) == jd+sd);
56    assert(jd[0] == 3);
57    assert(jd[1] == 2);
58    assert(jd[2] == 1);
59    assert(jd[3] == 0);
60}
61
62int main()
63{
64    test<bidirectional_iterator<const int*>, output_iterator<int*> >();
65    test<bidirectional_iterator<const int*>, forward_iterator<int*> >();
66    test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >();
67    test<bidirectional_iterator<const int*>, random_access_iterator<int*> >();
68    test<bidirectional_iterator<const int*>, int*>();
69
70    test<random_access_iterator<const int*>, output_iterator<int*> >();
71    test<random_access_iterator<const int*>, forward_iterator<int*> >();
72    test<random_access_iterator<const int*>, bidirectional_iterator<int*> >();
73    test<random_access_iterator<const int*>, random_access_iterator<int*> >();
74    test<random_access_iterator<const int*>, int*>();
75
76    test<const int*, output_iterator<int*> >();
77    test<const int*, forward_iterator<int*> >();
78    test<const int*, bidirectional_iterator<int*> >();
79    test<const int*, random_access_iterator<int*> >();
80    test<const int*, int*>();
81}
82