[elinks-users] LIST_HEAD and *prev *next

[Kalle Olavi Niemitalo]

Yan Seiner <yan at seiner.com> writes:

> Could someone please clue me in on how to use *prev and *next pointers 
> for struct form_control?

It's a cyclic list and the sentinel is just a struct list_head
rather than a full struct form_control.  Compare the pointer to
&form->items, or preferably use the macros in src/util/lists.h.

Please note bug 189 will require changing the representation of
lists in a future version.

> On another topic, I've commented out the find_form_state and subsequent 
> free.  I haven't been able to find a 'free_form_state' type of 
> function.  Could someone please clue me in on how to free the structure 
> allocated with find_form_state?

find_form_state extends the array to which view_state.form_info
points, and destroy_vs eventually frees the whole array.  Do you
have a specific reason to destroy the form_state before that?

Because you're hacking the C code, it might be better to take
this discussion to elinks-dev.