Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 23_containers / vector / zero_sized_allocations.cc

diff --git a/libstdc++-v3/testsuite/23_containers/vector/zero_sized_allocations.cc b/libstdc++-v3/testsuite/23_containers/vector/zero_sized_allocations.cc
new file mode 100644 (file)
index 0000000..7441cf8
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/vector/zero_sized_allocations.cc
@@ -0,0 +1,68 @@
+// Copyright (C) 2007, 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/>.
+//
+
+#include <vector>
+#include <cstdlib>
+#include <testsuite_hooks.h>
+
+unsigned int zero_sized_news = 0;
+
+void *operator new(size_t size) throw (std::bad_alloc)
+{
+  /* malloc(0) is unpredictable; avoid it.  */
+  if (size == 0)
+    {
+      size = 1;
+      ++zero_sized_news;
+    }
+
+  void *p = std::malloc(size);
+
+  if (p == 0)
+    throw std::bad_alloc();
+
+  return p;
+}
+
+void operator delete(void *ptr) throw()
+{
+  if (ptr != 0)
+    std::free(ptr);
+}
+
+// http://gcc.gnu.org/ml/libstdc++/2007-09/msg00006.html
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::vector<std::vector<int> > *v;
+  VERIFY( zero_sized_news == 0 );
+
+  v = new std::vector<std::vector<int> >;
+  VERIFY( zero_sized_news == 0 );
+
+  v->resize(10);
+  delete(v);
+  VERIFY( zero_sized_news == 0 );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}