Method Allocate

tensorflow/core/framework/ev_allocator.h:245–252

  }

  void* Allocate() {
    if (current_ + slot_size_ <= end_) {
      auto ret = current_;
      current_ += slot_size_;
      return ret;
    }
    return nullptr;
  }

  size_t BatchAllocate(size_t num, void** ret) {
    for (int i = 0; i < num; ++i) {