Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / tr1 / 6_containers / unordered_set / 26132.cc

diff --git a/libstdc++-v3/testsuite/tr1/6_containers/unordered_set/26132.cc b/libstdc++-v3/testsuite/tr1/6_containers/unordered_set/26132.cc
new file mode 100644 (file)
index 0000000..8fd8464
--- /dev/null
+++ b/libstdc++-v3/testsuite/tr1/6_containers/unordered_set/26132.cc
@@ -0,0 +1,57 @@
+// 2006-02-22  Paolo Carlini  <pcarlini@suse.de>
+//
+// Copyright (C) 2006, 2009 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/>.
+
+// 6.3 Unordered associative containers
+
+#include <tr1/unordered_set>
+#include <testsuite_hooks.h>
+
+// libstdc++/26132
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  for (float lf = 1.0; lf < 101.0; lf *= 10.0)
+    for (int size = 1; size <= 6561; size *= 3)
+      {
+       std::tr1::unordered_set<int> us1;
+       typedef std::tr1::unordered_set<int>::size_type size_type;
+       
+       us1.max_load_factor(10.0);
+
+       for (int i = 0; i < size; ++i)
+         us1.insert(i);
+
+       us1.max_load_factor(lf);
+
+       for (int i = 1; i <= 6561; i *= 81)
+         {
+           const size_type n = size * 81 / i;
+           us1.rehash(n);
+           VERIFY( us1.bucket_count() > us1.size() / us1.max_load_factor() );
+           VERIFY( us1.bucket_count() >= n );
+         }
+      }
+}
+
+int main()
+{
+  test01();
+  return 0;
+}