added forward/backward boilerplate

torch_spline_conv/src/cpu.h

@@ -6,3 +6,9 @@ void spline_basis_quadratic_Double(THDoubleTensor *basis, THLongTensor *weight_i
 
 void spline_basis_cubic_Float(THFloatTensor *basis, THLongTensor *weight_index, THFloatTensor *pseudo, THLongTensor *kernel_size, THByteTensor *is_open_spline, int K);
 void spline_basis_cubic_Double(THDoubleTensor *basis, THLongTensor *weight_index, THDoubleTensor *pseudo, THLongTensor *kernel_size, THByteTensor *is_open_spline, int K);
+
+void spline_edgewise_forward_Float(THFloatTensor *output, THFloatTensor *input, THFloatTensor *weight, THFloatTensor *basis, THLongTensor *weight_index);
+void spline_edgewise_backward_Double(THDoubleTensor *output, THDoubleTensor *input, THDoubleTensor *weight, THDoubleTensor *basis, THLongTensor *weight_index);
+
+void spline_edgewise_backward_Float(THFloatTensor *grad_input, THFloatTensor *grad_weight, THFloatTensor *grad_output, THFloatTensor *input, THFloatTensor *weight, THFloatTensor *basis, THLongTensor *weight_index);
+void spline_edgewise_backward_Double(THDoubleTensor *grad_input, THDoubleTensor *grad_weight, THDoubleTensor *grad_output, THDoubleTensor *input, THDoubleTensor *weight, THDoubleTensor *basis, THLongTensor *weight_index);

torch_spline_conv/src/generic/cpu.c

@@ -50,4 +50,10 @@ void spline_(basis_cubic)(THTensor *basis, THLongTensor *weight_index, THTensor
   )
 }
 
+void spline_(edgewise_forward)(THTensor *output, THTensor *input, THTensor *weight, THTensor *basis, THLongTensor *weight_index) {
+}
+
+void spline_(edgewise_backward)(THTensor *grad_input, THTensor *grad_weight, THTensor *grad_output, THTensor *input, THTensor *weight, THTensor *basis, THLongTensor *weight_index) {
+}
+
 #endif