Method ptr

paddle/phi/core/allocator.h:62–62

Returns the holding pointer. NOTE(liujinnan): Make this method as a virtual method. Because we add memory compact func for VirtualMemoryAutoGrowthBestFitAllocator. it will change ptr_ for defragmentation.

  // memory compact func for VirtualMemoryAutoGrowthBestFitAllocator. it will
  // change ptr_ for defragmentation.
  virtual void* ptr() const noexcept { return ptr_; }
  void set_ptr(void* new_ptr) noexcept { ptr_ = new_ptr; }

  uint64_t id() const noexcept { return id_; }