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

We can assign new elements to an existing container and, if required, swap two containers as well. If we want to assign a container `cont2` to another container `cont1`, we can do so either through copy assignment  `cont1= cont2`  or move assignment `cont1= std::move(cont2)`. In a `move` assignment, the value of `cont2` is copied to `cont1` and `cont2` becomes empty. A special form of assignment is the one with an initializer list: `cont= {1, 2, 3, 4, 5}`. In the case of `std:array`, an initializer list is not possible, hence we use aggregate initialization. The function `swap` exists in two forms. It is a method `cont1(swap(cont2))` and also a function template `std::swap(cont1, cont2)`. 

This lesson deals with ways to update and swap values in containers.

Assign and Swap