Set the maximum load factor of this unordered map to the specified newMaxLoadFactor. If newMaxLoadFactor < loadFactor(), this operator will cause an immediate rehash (in violation of the C++11 standard); otherwise, it has a constant-time cost. The behavior is undefined unless 0 < newMaxLoadFactor.
Declared in <bslstl_unorderedmap.h>
void
max_load_factor(float newMaxLoadFactor);