src/slist.h
static inline bool
slist_singular(const struct slist *list)
{
    return !slist_empty(list) && (list->first == list->last);
}
/*
 * Return true if list contains exactly one node.
 */
Return true if list contains exactly one node.
Return true if list contains exactly one node .
static inline bool
slist_singular(const struct slist *list)
{
    return !slist_empty(list) && (list->first == list->last);
}
static inline bool slist_singular ( const struct slist * list ) { return ! slist_empty ( list ) && ( list -> first == list -> last ) ; }
Return true if list contains exactly one node.
Return true if list contains exactly one node .