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 // UNSUPPORTED: c++98, c++03
10 
11 // <list>
12 
13 // template <class... Args> void emplace(const_iterator p, Args&&... args);
14 
15 
16 #include <list>
17 #include <cassert>
18 
19 #include "test_macros.h"
20 #include "min_allocator.h"
21 
22 class A
23 {
24     int i_;
25     double d_;
26 
27     A(const A&);
28     A& operator=(const A&);
29 public:
30     A(int i, double d)
31         : i_(i), d_(d) {}
32 
33     int geti() const {return i_;}
34     double getd() const {return d_;}
35 };
36 
37 int main(int, char**)
38 {
39     {
40     std::list<A> c;
41     c.emplace(c.cbegin(), 2, 3.5);
42     assert(c.size() == 1);
43     assert(c.front().geti() == 2);
44     assert(c.front().getd() == 3.5);
45     c.emplace(c.cend(), 3, 4.5);
46     assert(c.size() == 2);
47     assert(c.front().geti() == 2);
48     assert(c.front().getd() == 3.5);
49     assert(c.back().geti() == 3);
50     assert(c.back().getd() == 4.5);
51     }
52     {
53     std::list<A, min_allocator<A>> c;
54     c.emplace(c.cbegin(), 2, 3.5);
55     assert(c.size() == 1);
56     assert(c.front().geti() == 2);
57     assert(c.front().getd() == 3.5);
58     c.emplace(c.cend(), 3, 4.5);
59     assert(c.size() == 2);
60     assert(c.front().geti() == 2);
61     assert(c.front().getd() == 3.5);
62     assert(c.back().geti() == 3);
63     assert(c.back().getd() == 4.5);
64     }
65 
66 
67   return 0;
68 }
69