operator<= function template — Compares sets for less-than-or-equal
template <typename Key, typename T, typename C, typename A> bool operator<=(const set<Key,T,C,A>& x, const set<Key,T,C,A>& y); template <typename Key, typename T, typename C, typename A> bool operator<=(const multiset<Key,T,C,A>& x, const multiset<Key,T,C,A>& y);
The <=
operator returns
!
(y
<
x)
.