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

To access the elements of a container, we can use an iterator. A begin and end iterator forms a range, which can be processed further. For a container `cont`, `cont.begin()` is the begin iterator and `cont.end()` is the end iterator, which defines a half-open range. It is half-open because the begin iterator belongs to the range, the end iterator refers to a position past the range. With the iterator pair `cont.begin()` and `cont.end()` we can modify the elements. 

| **Iterator** | **Description** |
|-|-|
| `cont.begin()` and `cont.end()` | Pair of iterators to iterate forward. |
| `cont.cbegin()` and `cont.cend()` | Pair of iterators to iterate const forward. | 
| `cont.rbegin()` and `cont.rend()` | Pair of iterators to iterate backward. |   
| `cont.crbegin()` and `cont.crend()` | Pair of iterators to iterate const backward. |
<p> <strong> Functions available for iterators in containers </strong> </p>

Now I can modify the container.

In this lesson, we'll discuss the method used to access the elements of a container.

Access