jamesandersen

// allocate 81 char string in C memory
parsed := C.CString(strings.Repeat("0", 81))
defer C.free(unsafe.Pointer(parsed)) // free it when we're done here

// allocate byte array for our image data in C memory
p := C.CBytes(data)
defer C.free(unsafe.Pointer(p)) // free it when we're done

// float32 is standardized type compatible with C
gridCoords := []float32{-1, -1, -1, -1, -1, -1, -1, -1}