The Hash Function
Explore the role of hash functions in unordered associative containers in C++. Understand how they map keys to values, reduce collisions, and ensure constant time access. Learn about built-in hash functions for standard types and requirements for defining them for user-defined types to effectively use unordered containers.
We'll cover the following...
We'll cover the following...
The reason for the constant access time of an unordered associative container is the hash function. The hash function maps the key to its value (its hash value). A hash function is good if it produces as few collisions as possible and equally distributes the ...