1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <list>
10 
11 // void remove(const value_type& value);
12 
13 #include <list>
14 #include <cassert>
15 
16 #include "test_macros.h"
17 #include "min_allocator.h"
18 
19 struct S {
20   S(int i) : i_(new int(i)) {}
21   S(const S &rhs) : i_(new int(*rhs.i_)) {}
22   S &operator=(const S &rhs) {
23     *i_ = *rhs.i_;
24     return *this;
25   }
26   ~S() {
27     delete i_;
28     i_ = NULL;
29   }
30   bool operator==(const S &rhs) const { return *i_ == *rhs.i_; }
31   int get() const { return *i_; }
32   int *i_;
33 };
34 
35 int main(int, char**) {
36   {
37     int a1[] = {1, 2, 3, 4};
38     int a2[] = {1, 2, 4};
39     std::list<int> c(a1, a1 + 4);
40     c.remove(3);
41     assert(c == std::list<int>(a2, a2 + 3));
42   }
43   { // LWG issue #526
44     int a1[] = {1, 2, 1, 3, 5, 8, 11};
45     int a2[] = {2, 3, 5, 8, 11};
46     std::list<int> c(a1, a1 + 7);
47     c.remove(c.front());
48     assert(c == std::list<int>(a2, a2 + 5));
49   }
50   {
51     int a1[] = {1, 2, 1, 3, 5, 8, 11, 1};
52     int a2[] = {2, 3, 5, 8, 11};
53     std::list<S> c;
54     for (int *ip = a1; ip < a1 + 8; ++ip)
55       c.push_back(S(*ip));
56     c.remove(c.front());
57     std::list<S>::const_iterator it = c.begin();
58     for (int *ip = a2; ip < a2 + 5; ++ip, ++it) {
59       assert(it != c.end());
60       assert(*ip == it->get());
61     }
62     assert(it == c.end());
63   }
64   {
65     typedef no_default_allocator<int> Alloc;
66     typedef std::list<int, Alloc> List;
67     int a1[] = {1, 2, 3, 4};
68     int a2[] = {1, 2, 4};
69     List c(a1, a1 + 4, Alloc::create());
70     c.remove(3);
71     assert(c == List(a2, a2 + 3, Alloc::create()));
72   }
73 #if TEST_STD_VER >= 11
74   {
75     int a1[] = {1, 2, 3, 4};
76     int a2[] = {1, 2, 4};
77     std::list<int, min_allocator<int>> c(a1, a1 + 4);
78     c.remove(3);
79     assert((c == std::list<int, min_allocator<int>>(a2, a2 + 3)));
80   }
81 #endif
82 
83   return 0;
84 }
85