On Mon, Aug 6, 2012 at 11:32 AM, Anthony Mallet wrote: > So, yes, including the parameter names may prove useful in some situation. > But, for instance, existing compilers do not currently make their > "compatibility" decisions based on this information. Not sure what you mean here. If you use the wrong parameter name, the compiler (or interpreter) will definitely complain. > That said, I am not trying to change the digest computation algorithm. Just > trying to find a way to implement this with ros. If you have meta-knowledge that some pair of ROS Messages are in fact convertible, you can write a node that translates one to the other, or a subscriber that accepts both (on different topic names) and does the conversion into a common format for internal processing. (My apologies: this discussion is more appropriate for answers.ros.org than for the entire ros-users list.) -- joq