;   chunk_t* next;    while(chunk != NULL)   {     next = chunk->next;     chunk->slots &= chunk->shallow;      if(chunk->slots == 0)     { #ifdef USE_MEMTRACK       *mem_allocated += POOL_ALLOC_SIZE(chunk_t);       *mem_allocated += POOL_ALLOC_SIZE(block_t);       *mem_used += sizeof(chunk_t);       *mem_used += sizeof(block_t); #endif       used += 