std::unordered_set<Key,Hash,KeyEqual,Allocator>::max_load_factor
Min standard notice:
Manages the maximum load factor (number of elements per bucket). The container automatically increases the number of buckets if the load factor exceeds this threshold.
# Declarations
float max_load_factor() const;
(since C++11)
void max_load_factor( float ml );
(since C++11)
# Parameters
ml: new maximum load factor setting