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, Predicate<auto, Iter::value_type> Pred>
13 // requires OutputIterator<Iter, RvalueOf<Iter::reference>::type>
14 // && CopyConstructible<Pred>
15 // Iter
16 // remove_if(Iter first, Iter last, Pred pred);
17
18 #include <algorithm>
19 #include <functional>
20 #include <cassert>
21 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
22 #include <memory>
23 #endif
24
25 #include "test_iterators.h"
26
27 template <class Iter>
28 void
test()29 test()
30 {
31 int ia[] = {0, 1, 2, 3, 4, 2, 3, 4, 2};
32 const unsigned sa = sizeof(ia)/sizeof(ia[0]);
33 int* r = std::remove_if(ia, ia+sa, std::bind2nd(std::equal_to<int>(), 2));
34 assert(r == ia + sa-3);
35 assert(ia[0] == 0);
36 assert(ia[1] == 1);
37 assert(ia[2] == 3);
38 assert(ia[3] == 4);
39 assert(ia[4] == 3);
40 assert(ia[5] == 4);
41 }
42
43 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
44
45 struct pred
46 {
operator ()pred47 bool operator()(const std::unique_ptr<int>& i) {return *i == 2;}
48 };
49
50 template <class Iter>
51 void
test1()52 test1()
53 {
54 const unsigned sa = 9;
55 std::unique_ptr<int> ia[sa];
56 ia[0].reset(new int(0));
57 ia[1].reset(new int(1));
58 ia[2].reset(new int(2));
59 ia[3].reset(new int(3));
60 ia[4].reset(new int(4));
61 ia[5].reset(new int(2));
62 ia[6].reset(new int(3));
63 ia[7].reset(new int(4));
64 ia[8].reset(new int(2));
65 Iter r = std::remove_if(Iter(ia), Iter(ia+sa), pred());
66 assert(base(r) == ia + sa-3);
67 assert(*ia[0] == 0);
68 assert(*ia[1] == 1);
69 assert(*ia[2] == 3);
70 assert(*ia[3] == 4);
71 assert(*ia[4] == 3);
72 assert(*ia[5] == 4);
73 }
74
75 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
76
main()77 int main()
78 {
79 test<forward_iterator<int*> >();
80 test<bidirectional_iterator<int*> >();
81 test<random_access_iterator<int*> >();
82 test<int*>();
83
84 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
85
86 test1<forward_iterator<std::unique_ptr<int>*> >();
87 test1<bidirectional_iterator<std::unique_ptr<int>*> >();
88 test1<random_access_iterator<std::unique_ptr<int>*> >();
89 test1<std::unique_ptr<int>*>();
90
91 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
92 }
93