On Sat, 2 Mar 2019, Sven Schreiber wrote: > Hi, > > following up on a very old message (3 ys ago) I found about 7 cases > where in the guide a function header has an argument construct like > "const matrix *X". I believe this is obsolete, because if you want to > change X inside the function it mustn't be "const", and if you want to > avoid the copying then "const" is already doing that. > > Should I change those occurrences? Yes, good idea. The redundancy is harmless but better not to have it.