)Took me a while, but i think i got it now (less typing is always better for me).
end note: i then started with realloc, which seems to make sense. I don't seem to have talent, but it is something like a cross-riddle for an old dog (if i ever will be able to program or not is not the main question. It sure would be cool, but if it's only a bit of fun thats ok too).
If some easy examples for malloc/realloc (or any of its sisters ) are there, i am happy to see them.