Weird error compiling code that calls Surface low-level CUDA API - cuda

Question

This minimal example:
int main()
{
struct surfaceReference* surfaceReferencePointer;
cudaGetSurfaceReference(&surfaceReferencePointer, "surfaceReference");
}
Fails when it is compiled like this:
nvcc -g -arch=sm_20 -o foo.out foo.cu
Showing the following error message:
foo.cu(4): warning: argument of type "surfaceReference **" is incompatible with parameter of type "const surfaceReference **"
foo.cu(4): warning: argument of type "surfaceReference **" is incompatible with parameter of type "const surfaceReference **"
foo.cu: In function ‘int main()’:
foo.cu:4: error: invalid conversion from ‘surfaceReference**’ to ‘const surfaceReference**’
foo.cu:4: error: initializing argument 1 of ‘cudaError_t cudaGetSurfaceReference(const surfaceReference**, const char*)’
I cannot understand what I am doing wrong. I am compiling on a Linux Ubuntu 64-bit machine, using CUDA 3.2.

Answer 1

The struct surfaceReference* pointer should be defined as const:
int main()
{
const struct surfaceReference* surfaceReferencePointer;
cudaGetSurfaceReference(&surfaceReferencePointer, "surfaceReference");
}
Kudos to codymanix, who provided the right answer in the comments.