Explore the full potential of C++ by mastering the standard library.

Become a C++ Programmer

The C++ standard library is a collection of all the tools and utilities available in C++. It received its latest update in 2017, known as C++17. The update introduces many new features that further optimize our code. This module will help us fully grasp C++ and use it to its full potential.

C++ Standard Library

There are special rules for the key and value of an unordered associative container.

The key has to be

* comparable
* available as hash value
* copyable or moveable

The value has to be 

* default constructible
* copyable or moveable

This lesson is about the different properties of keys and values in this type of associative container.

Keys and Values