libstdc++-v3/testsuite/23_containers/unordered_multimap/init-list.cc

   1 // Copyright (C) 2008-2021 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8 //
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17 //
  18
  19 // { dg-do run { target c++11 } }
  20
  21 #include <set>
  22 #include <unordered_map>
  23 #include <testsuite_hooks.h>
  24
  25 using namespace std;
  26
  27 void test01()
  28 {
  29   typedef unordered_multimap<int,double> Container;
  30   typedef Container::const_iterator iterator;
  31   typedef pair<iterator,iterator> itpair;
  32
  33   Container m({ { 1, 1.0 }, { 1, 2.0 }, { 1, 237.0 } });
  34   VERIFY(m.size() == 3);
  35   itpair ip = m.equal_range(1);
  36   VERIFY(distance(ip.first, ip.second) == 3);
  37   set<double> s = { 1.0, 2.0, 237.0 };
  38   for (iterator i = ip.first; i != ip.second; ++i)
  39     s.erase (i->second);
  40   VERIFY(s.empty());
  41
  42   m = { {5, 55.0}, { 5, 66.0 }, { 42, 4242.0 } };
  43   VERIFY(m.size() == 3);
  44   ip = m.equal_range(5);
  45   VERIFY(distance(ip.first, ip.second) == 2);
  46   s = { 55.0, 66.0 };
  47   for (iterator i = ip.first; i != ip.second; ++i)
  48     s.erase (i->second);
  49   VERIFY(s.empty());
  50
  51   m.insert({ { 7, 77.0 }, { 7, 88.0 } });
  52   VERIFY(m.size() == 5);
  53   VERIFY(m.count(5) == 2);
  54   VERIFY(m.count(42) == 1);
  55   VERIFY(m.count(7) == 2);
  56 }
  57
  58 int main()
  59 {
  60   __gnu_test::set_memory_limits();
  61   test01();
  62 }