xref: /llvm-project/libcxx/test/std/containers/associative/set/set.cons/default.pass.cpp (revision 7fc6a55688c816f5fc1a5481ae7af25be7500356)
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 // <set>
10 
11 // class set
12 
13 // set();
14 
15 #include <set>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 #include "min_allocator.h"
20 
main(int,char **)21 int main(int, char**)
22 {
23     {
24     std::set<int> m;
25     assert(m.empty());
26     assert(m.begin() == m.end());
27     }
28 #if TEST_STD_VER >= 11
29     {
30     std::set<int, std::less<int>, min_allocator<int>> m;
31     assert(m.empty());
32     assert(m.begin() == m.end());
33     }
34     {
35     typedef explicit_allocator<int> A;
36         {
37         std::set<int, std::less<int>, A> m;
38         assert(m.empty());
39         assert(m.begin() == m.end());
40         }
41         {
42         A a;
43         std::set<int, std::less<int>, A> m(a);
44         assert(m.empty());
45         assert(m.begin() == m.end());
46         }
47     }
48     {
49     std::set<int> m = {};
50     assert(m.empty());
51     assert(m.begin() == m.end());
52     }
53 #endif
54 
55   return 0;
56 }
57