1 // { dg-options "-std=gnu++11" }
2 
3 // Copyright (C) 2010-2016 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library.  This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 //
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 // GNU General Public License for more details.
15 //
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3.  If not see
18 // <http://www.gnu.org/licenses/>.
19 
20 // Single-element insert
21 
22 #include <string>
23 #include <iterator>
24 #include <unordered_set>
25 #include <testsuite_hooks.h>
26 
27 namespace
28 {
29   std::size_t
get_nb_bucket_elems(const std::unordered_multiset<std::string> & us)30   get_nb_bucket_elems(const std::unordered_multiset<std::string>& us)
31   {
32     std::size_t nb = 0;
33     for (std::size_t b = 0; b != us.bucket_count(); ++b)
34       nb += us.bucket_size(b);
35     return nb;
36   }
37 }
38 
39 
test01()40 void test01()
41 {
42   bool test __attribute__((unused)) = true;
43 
44   typedef std::unordered_multiset<std::string> Set;
45   Set s;
46   VERIFY(s.empty());
47 
48   Set::iterator i = s.insert("abcde");
49   VERIFY( s.size() == 1 );
50   VERIFY( get_nb_bucket_elems(s) == 1 );
51   VERIFY(std::distance(s.begin(), s.end()) == 1);
52   VERIFY(i == s.begin());
53   VERIFY(*i == "abcde");
54 }
55 
test02()56 void test02()
57 {
58   bool test __attribute__((unused)) = true;
59 
60   typedef std::unordered_multiset<std::string> Set;
61   Set s;
62   VERIFY(s.empty());
63 
64   s.insert("abcde");
65   Set::iterator i = s.insert("abcde");
66   VERIFY(s.size() == 2);
67   VERIFY( get_nb_bucket_elems(s) == 2 );
68   VERIFY(std::distance(s.begin(), s.end()) == 2);
69   VERIFY(*i == "abcde");
70 
71   Set::iterator i2 = s.begin();
72   ++i2;
73   VERIFY(i == s.begin() || i == i2);
74   VERIFY(*(s.begin()) == "abcde" && *i2 == "abcde");
75 }
76 
main()77 int main()
78 {
79   test01();
80   test02();
81   return 0;
82 }
83