1 // { dg-do run { target c++11 } }
2 // 2008-05-22  Paolo Carlini  <paolo.carlini@oracle.com>
3 //
4 // Copyright (C) 2008-2019 Free Software Foundation, Inc.
5 //
6 // This file is part of the GNU ISO C++ Library.  This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
10 // any later version.
11 //
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 // GNU General Public License for more details.
16 //
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING3.  If not see
19 // <http://www.gnu.org/licenses/>.
20 
21 #include <unordered_map>
22 #include <stdexcept>
23 #include <testsuite_hooks.h>
24 
25 // DR 761. unordered_map needs an at() member function.
test01()26 void test01()
27 {
28   typedef std::unordered_map<int, double> map_type;
29 
30   {
31     map_type m;
32     m[0] = 1.5;
33 
34     double& rd = m.at(0);
35     VERIFY( rd == 1.5 );
36     try
37       {
38 	m.at(1);
39       }
40     catch(std::out_of_range& obj)
41       {
42 	// Expected.
43       }
44     catch(...)
45       {
46 	// Failed.
47 	throw;
48       }
49   }
50 
51   {
52     map_type m;
53     m[1] = 2.5;
54     const map_type cm(m);
55 
56     const double& crd = cm.at(1);
57     VERIFY( crd == 2.5 );
58     try
59       {
60 	cm.at(0);
61       }
62     catch(std::out_of_range& obj)
63       {
64 	// Expected.
65       }
66     catch(...)
67       {
68 	// Failed.
69 	throw;
70       }
71   }
72 }
73 
main()74 int main()
75 {
76   test01();
77   return 0;
78 }
79