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1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <map>
11 
12 // class multimap
13 
14 // size_type size() const;
15 
16 #include <map>
17 #include <cassert>
18 
19 #include "min_allocator.h"
20 
main()21 int main()
22 {
23     {
24     typedef std::multimap<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::multimap<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