16 class zone_allocator {
26     typedef zone_allocator<O> other;
29   explicit zone_allocator(Zone* zone) throw() : zone_(zone) {}  in zone_allocator()  function
30   explicit zone_allocator(const zone_allocator& other) throw()  in zone_allocator()  function
32   template<typename U> zone_allocator(const zone_allocator<U>& other) throw()  in zone_allocator()  function
34   template<typename U> friend class zone_allocator;  variable
53   bool operator==(zone_allocator const& other) {
56   bool operator!=(zone_allocator const& other) {
61   zone_allocator();
65 typedef zone_allocator<bool> ZoneBoolAllocator;
66 typedef zone_allocator<int> ZoneIntAllocator;