diff --git a/bitmap_allocator.h b/bitmap_allocator.h
index 7ffe39c..31860f8 100644
--- a/bitmap_allocator.h
+++ b/bitmap_allocator.h
@@ -359,11 +359,23 @@ namespace __gnu_cxx {
         void 
         destroy(pointer __p) { __p->~T(); }
 
-        bitmap_allocator() throw() { }
+	bitmap_allocator() throw() { }
+
+	bitmap_allocator(const bitmap_allocator&) throw() { }
 
         template<typename T1>
         bitmap_allocator(const bitmap_allocator<T1>&) throw() { }
 
+	pointer
+	address(reference __x) const { return std::__addressof(__x); }
+	
+	const_pointer
+	address(const_reference __x) const { return std::__addressof(__x); }
+
+	size_type
+	max_size() const throw() 
+	{ return size_t(-1) / sizeof(T); }
+
 	T* allocate(size_t nobjs, const void* = 0) {
 	    return reinterpret_cast<T*>(this->impl.allocate(nobjs));
 	}
@@ -376,6 +388,16 @@ namespace __gnu_cxx {
     template <typename T>
     alloc_impl<sizeof(T)> bitmap_allocator<T>::impl;
 
+    template<typename T>
+    inline bool
+    operator==(const bitmap_allocator<T>&, const bitmap_allocator<T>&)
+    { return true; }
+  
+    template<typename T>
+    inline bool
+    operator!=(const bitmap_allocator<T>&, const bitmap_allocator<T>&)
+    { return false; }
+
 }
 
 #endif // BITMAP_ALLOCATOR_H
diff --git a/test.cpp b/test.cpp
index 3bf5845..1d441bf 100644
--- a/test.cpp
+++ b/test.cpp
@@ -16,8 +16,8 @@ std::vector<int*> vpi;
 std::vector<int> numbers;
 
 void test_list(int n) {
-    typedef bitmap_allocator<int> alloc_t;
-    // typedef std::allocator<int> alloc_t;
+  typedef bitmap_allocator<int> alloc_t;
+  //   typedef std::allocator<int> alloc_t;
     typedef std::list<int, alloc_t> list_t;
     list_t il;
 
@@ -29,8 +29,8 @@ void test_list(int n) {
 }
 
 void test_alloc(int n) {
-    bitmap_allocator<int> ia;
-    // std::allocator<int> ia;
+  bitmap_allocator<int> ia;
+  //  std::allocator<int> ia;
 
     for (int i = 0; i < n-1; ++i) {
         vpi.push_back(ia.allocate(1));
@@ -54,8 +54,8 @@ main() {
     }
 
     for (int i = 0; i < 24; ++i) {
-        // test_alloc(1<<i);
-        test_list(1<<i);
+      test_alloc(1<<i);
+      // test_list(1<<i);
     }
     // sleep(50);
 }