libstdc++-v3/testsuite/23_containers/unordered_multiset/insert/multiset_single.cc

   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
  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
  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
  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
  77 int main()
  78 {
  79   test01();
  80   test02();
  81   return 0;
  82 }