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

**Performance**. That's the simple reason why the unordered associative containers were so long missed in C++. In the example below, one million randomly created values are read from an `std::map` and `std::unordered_map` with 10 million values. The impressive result is that the linear access time of an unordered associative container is 20 times faster than the access time of an ordered associative container. That is just the difference between constant and logarithmic complexity *O(log n)* of these operations.

The unordered associative container type is more optimized when compared to its ordered sibling.