Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 23_containers / list / cons / clear_allocator.cc

diff --git a/libstdc++-v3/testsuite/23_containers/list/cons/clear_allocator.cc b/libstdc++-v3/testsuite/23_containers/list/cons/clear_allocator.cc
new file mode 100644 (file)
index 0000000..6a52bb7
--- /dev/null
+++ b/libstdc++-v3/testsuite/23_containers/list/cons/clear_allocator.cc
@@ -0,0 +1,87 @@
+// Copyright (C) 2004, 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 <list>
+#include <ext/new_allocator.h>
+
+using namespace std;
+using __gnu_cxx::new_allocator;
+
+template<typename T>
+  class clear_alloc : public new_allocator<T> 
+  {
+  public:
+
+    template <typename T1>
+      struct rebind 
+      { typedef clear_alloc<T1> other; };
+
+    virtual void clear() throw()
+    { }
+
+    clear_alloc() throw()
+    { }
+    
+    clear_alloc(clear_alloc const&) throw() : new_allocator<T>() 
+    { }
+    
+    template<typename T1>
+    clear_alloc(clear_alloc<T1> const&) throw()
+      { }
+
+    virtual ~clear_alloc() throw()
+    { this->clear(); }
+
+    T* allocate(typename new_allocator<T>::size_type n, const void *hint = 0)
+    {
+      this->clear();
+      return new_allocator<T>::allocate(n, hint);
+    }
+    
+    void deallocate(T *ptr, typename new_allocator<T>::size_type n)
+    {
+      this->clear();
+      new_allocator<T>::deallocate(ptr, n);
+    }
+  };
+
+template<typename Container>
+  void Check_Container()
+  {
+    Container* pic = new Container;
+    int x = 230;
+    
+    while (x--)
+      {
+       pic->push_back(x);
+      }
+    
+    pic->get_allocator();
+    
+    // The following has led to infinite recursions or cores.
+    pic->clear();
+
+    delete pic;
+  }
+
+
+int main()
+{
+  Check_Container<std::list<int, clear_alloc<int> > >();
+  return 0;
+}
+