text: 
  #if !GOOGLE_CUDA
  #error This file must only be included when building with Cuda support
  #endif
  
  #ifndef TENSORFLOW_USER_OPS_ROIPOOLING_OP_GPU_H_
  #define TENSORFLOW_USER_OPS_ROIPOOLING_OP_GPU_H_
  
  #define EIGEN_USE_GPU
  
  #include "tensorflow/core/framework/tensor_types.h"
  #include "tensorflow/core/platform/types.h"
  
  namespace tensorflow {
  
  
  bool BackProjectForwardLauncher(const float* input, const float* coords,
    const int dim[6], float *top, const Eigen::GpuDevice& d);
  
  bool BackProjectBackwardLauncher(const float *grad, 
    const float* input, const float* coords, const int dim[6],
    float* inputs_diff, float* coords_diff, const Eigen::GpuDevice& d);
  
  
  }  // namespace tensorflow
  
  #endif // TENSORFLOW_CORE_KERNELS_MAXPOOLING_OP_GPU_H_
  