Method allocate

example/cpp11/allocation/server.cpp:145–156

  handler_memory& operator=(const handler_memory&) = delete;

  void* allocate(std::size_t size)
  {
    if (!in_use_ && size < sizeof(storage_))
    {
      in_use_ = true;
      return &storage_;
    }
    else
    {
      return ::operator new(size);
    }
  }

  void deallocate(void* pointer)
  {