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 // <map>
10
11 // class map
12
13 // size_type size() const;
14
15 #include <map>
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 typedef std::map<int, double> M;
25 M m;
26 assert(m.size() == 0);
27 m.insert(M::value_type(2, 1.5));
28 assert(m.size() == 1);
29 m.insert(M::value_type(1, 1.5));
30 assert(m.size() == 2);
31 m.insert(M::value_type(3, 1.5));
32 assert(m.size() == 3);
33 m.erase(m.begin());
34 assert(m.size() == 2);
35 m.erase(m.begin());
36 assert(m.size() == 1);
37 m.erase(m.begin());
38 assert(m.size() == 0);
39 }
40 #if TEST_STD_VER >= 11
41 {
42 typedef std::map<int, double, std::less<int>, min_allocator<std::pair<const int, double>>> M;
43 M m;
44 assert(m.size() == 0);
45 m.insert(M::value_type(2, 1.5));
46 assert(m.size() == 1);
47 m.insert(M::value_type(1, 1.5));
48 assert(m.size() == 2);
49 m.insert(M::value_type(3, 1.5));
50 assert(m.size() == 3);
51 m.erase(m.begin());
52 assert(m.size() == 2);
53 m.erase(m.begin());
54 assert(m.size() == 1);
55 m.erase(m.begin());
56 assert(m.size() == 0);
57 }
58 #endif
59
60 return 0;
61 }
62