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// template <class Compare> void merge(list& x, Compare comp);
12// If (addressof(x) == this) does nothing; otherwise ...
13
14#include <list>
15#include <functional>
16#include <cassert>
17
18#include "test_macros.h"
19#include "min_allocator.h"
20
21int main(int, char**)
22{
23 {
24 int a1[] = {10, 9, 7, 3, 1};
25 int a2[] = {11, 8, 6, 5, 4, 2, 0};
26 int a3[] = {11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
27 std::list<int> c1(a1, a1+sizeof(a1)/sizeof(a1[0]));
28 std::list<int> c2(a2, a2+sizeof(a2)/sizeof(a2[0]));
29 c1.merge(x&: c2, comp: std::greater<int>());
30 assert(c1 == std::list<int>(a3, a3+sizeof(a3)/sizeof(a3[0])));
31 assert(c2.empty());
32 }
33 {
34 int a1[] = {10, 9, 7, 3, 1};
35 std::list<int> c1(a1, a1+sizeof(a1)/sizeof(a1[0]));
36 c1.merge(x&: c1, comp: std::greater<int>());
37 assert((c1 == std::list<int>(a1, a1+sizeof(a1)/sizeof(a1[0]))));
38 }
39
40#if TEST_STD_VER >= 11
41 {
42 int a1[] = {10, 9, 7, 3, 1};
43 int a2[] = {11, 8, 6, 5, 4, 2, 0};
44 int a3[] = {11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0};
45 std::list<int, min_allocator<int>> c1(a1, a1+sizeof(a1)/sizeof(a1[0]));
46 std::list<int, min_allocator<int>> c2(a2, a2+sizeof(a2)/sizeof(a2[0]));
47 c1.merge(c2, std::greater<int>());
48 assert((c1 == std::list<int, min_allocator<int>>(a3, a3+sizeof(a3)/sizeof(a3[0]))));
49 assert(c2.empty());
50 }
51#endif
52
53 return 0;
54}
55

source code of libcxx/test/std/containers/sequences/list/list.ops/merge_comp.pass.cpp