On 06/03/2021 10:05, Luc Van Oostenryck wrote:
> Some algorithms need with a stack or a working list from which the
s/with a stack/a stack/
ATB,
Ramsay Jones
> last element can be removed. The ptrlist API has a function to do
> this but it's not typed and thus needs a wrapper for each type
> it's used for.
>
> Simplify this by adding a generic (but type-safe) macro for this
> while also giving it a nicer name: pop_ptr_list().
>
> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
> ---
> ptrlist.h | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/ptrlist.h b/ptrlist.h
> index 3b952097545f..0b06142252f5 100644
> --- a/ptrlist.h
> +++ b/ptrlist.h
> @@ -67,6 +67,12 @@ extern void **__add_ptr_list_tag(struct ptr_list **, void *, unsigned long);
> (__typeof__(&(ptr))) __add_ptr_list_tag(head, ptr, tag);\
> })
>
> +#define pop_ptr_list(l) ({ \
> + PTRLIST_TYPE(*(l)) ptr; \
> + ptr = delete_ptr_list_last((struct ptr_list**)(l)); \
> + ptr; \
> + })
> +
> extern void __free_ptr_list(struct ptr_list **);
> #define free_ptr_list(list) do { \
> VRFY_PTR_LIST(*(list)); \
>
