// In header: <boost/interprocess/allocators/adaptive_pool.hpp>


template<typename T, typename S, std::size_t NodesPerBlock, std::size_t F, 
         unsigned char OP> 
  bool operator!=(const adaptive_pool< T, S, NodesPerBlock, F, OP > & alloc1, 
                  const adaptive_pool< T, S, NodesPerBlock, F, OP > & alloc2);