How can I know function definition in vim for C?

Question

I have function that prototype is void customer(void *unusedpointer, unsigned long customernum);

Now, I want to call this function from another file. I write this customer( but I forget the prototype. I can move the definition of a function using ctags when it is called perfectly.

But in this case what can I do when I don't call it yet?

I guess ctags has a functionality to do this.

Answer 1

If you have ctags installed then save the file(type :w) and regenerate the ctags by ctags -R filename then <Ctrl-]> to go to the function definition.