src/slist.h
static inline bool
slist_empty(const struct slist *list)
{
    return list->first == NULL;
}
/*
 * Return true if list is empty.
 */
Return true if list is empty.
Return true if list is empty .
static inline bool
slist_empty(const struct slist *list)
{
    return list->first == NULL;
}
static inline bool slist_empty ( const struct slist * list ) { return list -> first == NULL ; }
Return true if list is empty.
Return true if list is empty .