insert_hint_const_lvalue.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <unordered_set>
11
12// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
13//           class Alloc = allocator<Value>>
14// class unordered_set
15
16// iterator insert(const_iterator p, const value_type& x);
17
18#include <unordered_set>
19#include <cassert>
20
21int main()
22{
23    {
24        typedef std::unordered_set<double> C;
25        typedef C::iterator R;
26        typedef C::value_type P;
27        C c;
28        C::const_iterator e = c.end();
29        R r = c.insert(e, P(3.5));
30        assert(c.size() == 1);
31        assert(*r == 3.5);
32
33        r = c.insert(e, P(3.5));
34        assert(c.size() == 1);
35        assert(*r == 3.5);
36
37        r = c.insert(e, P(4.5));
38        assert(c.size() == 2);
39        assert(*r == 4.5);
40
41        r = c.insert(e, P(5.5));
42        assert(c.size() == 3);
43        assert(*r == 5.5);
44    }
45}
46