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

source code of libcxx/test/std/containers/sequences/list/list.modifiers/emplace.pass.cpp