+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3. If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <unordered_map>
+#include <string>
+#include <testsuite_hooks.h>
+
+namespace
+{
+ std::size_t
+ get_nb_bucket_elems(const std::unordered_multimap<std::string, int>& um)
+ {
+ std::size_t nb = 0;
+ for (std::size_t b = 0; b != um.bucket_count(); ++b)
+ nb += um.bucket_size(b);
+ return nb;
+ }
+}
+
+void test01()
+{
+ bool test __attribute__((unused)) = true;
+
+ typedef std::unordered_multimap<std::string, int> Mmap;
+ typedef Mmap::iterator iterator;
+ typedef Mmap::const_iterator const_iterator;
+ typedef Mmap::value_type value_type;
+
+ Mmap mm1;
+
+ mm1.insert(value_type("foo", 10));
+ mm1.insert(value_type("foo", 11));
+ mm1.insert(value_type("foo", 12));
+ mm1.insert(value_type("foo", 13));
+ mm1.insert(value_type("foo", 14));
+ mm1.insert(value_type("foo", 15));
+ mm1.insert(value_type("bar", 20));
+ mm1.insert(value_type("bar", 21));
+ mm1.insert(value_type("bar", 22));
+ mm1.insert(value_type("bar", 23));
+ mm1.insert(value_type("bar", 24));
+ mm1.insert(value_type("bar", 25));
+ VERIFY( mm1.size() == 12 );
+ VERIFY( get_nb_bucket_elems(mm1) == mm1.size() );
+ VERIFY( distance(mm1.begin(), mm1.end()) == mm1.size() );
+
+ VERIFY( mm1.erase(mm1.begin()) != mm1.end() );
+ VERIFY( mm1.size() == 11 );
+ VERIFY( get_nb_bucket_elems(mm1) == mm1.size() );
+ VERIFY( distance(mm1.begin(), mm1.end()) == mm1.size() );
+
+ auto it = mm1.begin();
+ advance(it, 2);
+ VERIFY( mm1.erase(mm1.begin(), it) != mm1.end() );
+ VERIFY( mm1.size() == 9 );
+ VERIFY( get_nb_bucket_elems(mm1) == mm1.size() );
+ VERIFY( distance(mm1.begin(), mm1.end()) == mm1.size() );
+
+ VERIFY( mm1.erase(mm1.begin()->first) == 3 );
+ VERIFY( mm1.size() == 6 );
+ VERIFY( get_nb_bucket_elems(mm1) == mm1.size() );
+ VERIFY( distance(mm1.begin(), mm1.end()) == mm1.size() );
+
+ VERIFY( mm1.erase(mm1.begin(), mm1.end()) == mm1.end() );
+ VERIFY( mm1.empty() );
+ VERIFY( get_nb_bucket_elems(mm1) == mm1.size() );
+ VERIFY( distance(mm1.begin(), mm1.end()) == mm1.size() );
+}
+
+int main()
+{
+ test01();
+ return 0;
+}