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 // <numeric>
11
12 // template <InputIterator InIter, OutputIterator<auto, const InIter::value_type&> OutIter>
13 // requires HasPlus<InIter::value_type, InIter::reference>
14 // && HasAssign<InIter::value_type,
15 // HasPlus<InIter::value_type, InIter::reference>::result_type>
16 // && Constructible<InIter::value_type, InIter::reference>
17 // OutIter
18 // partial_sum(InIter first, InIter last, OutIter result);
19
20 #include <numeric>
21 #include <cassert>
22
23 #include "test_iterators.h"
24
25 template <class InIter, class OutIter>
26 void
test()27 test()
28 {
29 int ia[] = {1, 2, 3, 4, 5};
30 int ir[] = {1, 3, 6, 10, 15};
31 const unsigned s = sizeof(ia) / sizeof(ia[0]);
32 int ib[s] = {0};
33 OutIter r = std::partial_sum(InIter(ia), InIter(ia+s), OutIter(ib));
34 assert(base(r) == ib + s);
35 for (unsigned i = 0; i < s; ++i)
36 assert(ib[i] == ir[i]);
37 }
38
main()39 int main()
40 {
41 test<input_iterator<const int*>, output_iterator<int*> >();
42 test<input_iterator<const int*>, forward_iterator<int*> >();
43 test<input_iterator<const int*>, bidirectional_iterator<int*> >();
44 test<input_iterator<const int*>, random_access_iterator<int*> >();
45 test<input_iterator<const int*>, int*>();
46
47 test<forward_iterator<const int*>, output_iterator<int*> >();
48 test<forward_iterator<const int*>, forward_iterator<int*> >();
49 test<forward_iterator<const int*>, bidirectional_iterator<int*> >();
50 test<forward_iterator<const int*>, random_access_iterator<int*> >();
51 test<forward_iterator<const int*>, int*>();
52
53 test<bidirectional_iterator<const int*>, output_iterator<int*> >();
54 test<bidirectional_iterator<const int*>, forward_iterator<int*> >();
55 test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >();
56 test<bidirectional_iterator<const int*>, random_access_iterator<int*> >();
57 test<bidirectional_iterator<const int*>, int*>();
58
59 test<random_access_iterator<const int*>, output_iterator<int*> >();
60 test<random_access_iterator<const int*>, forward_iterator<int*> >();
61 test<random_access_iterator<const int*>, bidirectional_iterator<int*> >();
62 test<random_access_iterator<const int*>, random_access_iterator<int*> >();
63 test<random_access_iterator<const int*>, int*>();
64
65 test<const int*, output_iterator<int*> >();
66 test<const int*, forward_iterator<int*> >();
67 test<const int*, bidirectional_iterator<int*> >();
68 test<const int*, random_access_iterator<int*> >();
69 test<const int*, int*>();
70 }
71