xref: /llvm-project/libcxx/test/std/algorithms/alg.modifying.operations/alg.remove/remove.pass.cpp (revision ddda456a76b2809e818c82d90252f42511900b12)
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<ForwardIterator Iter, class T>
13 //   requires OutputIterator<Iter, RvalueOf<Iter::reference>::type>
14 //         && HasEqualTo<Iter::value_type, T>
15 //   Iter
16 //   remove(Iter first, Iter last, const T& value);
17 
18 #include <algorithm>
19 #include <cassert>
20 #include <memory>
21 
22 #include "test_macros.h"
23 #include "test_iterators.h"
24 
25 template <class Iter>
26 void
27 test()
28 {
29     int ia[] = {0, 1, 2, 3, 4, 2, 3, 4, 2};
30     const unsigned sa = sizeof(ia)/sizeof(ia[0]);
31     Iter r = std::remove(Iter(ia), Iter(ia+sa), 2);
32     assert(base(r) == ia + sa-3);
33     assert(ia[0] == 0);
34     assert(ia[1] == 1);
35     assert(ia[2] == 3);
36     assert(ia[3] == 4);
37     assert(ia[4] == 3);
38     assert(ia[5] == 4);
39 }
40 
41 #if TEST_STD_VER >= 11
42 template <class Iter>
43 void
44 test1()
45 {
46     const unsigned sa = 9;
47     std::unique_ptr<int> ia[sa];
48     ia[0].reset(new int(0));
49     ia[1].reset(new int(1));
50     ia[3].reset(new int(3));
51     ia[4].reset(new int(4));
52     ia[6].reset(new int(3));
53     ia[7].reset(new int(4));
54     Iter r = std::remove(Iter(ia), Iter(ia+sa), std::unique_ptr<int>());
55     assert(base(r) == ia + sa-3);
56     assert(*ia[0] == 0);
57     assert(*ia[1] == 1);
58     assert(*ia[2] == 3);
59     assert(*ia[3] == 4);
60     assert(*ia[4] == 3);
61     assert(*ia[5] == 4);
62 }
63 #endif // TEST_STD_VER >= 11
64 
65 int main()
66 {
67     test<forward_iterator<int*> >();
68     test<bidirectional_iterator<int*> >();
69     test<random_access_iterator<int*> >();
70     test<int*>();
71 
72 #if TEST_STD_VER >= 11
73     test1<forward_iterator<std::unique_ptr<int>*> >();
74     test1<bidirectional_iterator<std::unique_ptr<int>*> >();
75     test1<random_access_iterator<std::unique_ptr<int>*> >();
76     test1<std::unique_ptr<int>*>();
77 #endif // TEST_STD_VER >= 11
78 }
79