Gain insights into the C++ keyword 'const,' its usage in various contexts, and implications when returning pointers and references. Learn about preventing accidental data changes.

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In this course, you will learn about the C++ keyword const and its behaviour under different usage conditions, including local, global and static contexts. This course will help you to understand const and its implications when you attempt to return pointers and references in C++. By the end of the course, you will have a solid grip on const and its usage in preventing any accidental change of data.

Secure Coding Practices in C++: A Deep Dive into const

## What are the arguments against `const`?

In some cases, `const` may be a bit verbose, but at the same time, it will make our code more robust. The behavior of our code will be more in line with our expectations. Increasing the use of `const` will require some adjustments not only from us but others as well. It will not be enough to set up a static code analyzer or implement an additional rule in **clang-tidy**. Many developers will have to change their attitude about `const` so that it can be used regularly. 

# What are the arguments against `const`?

In some cases, `const` may be a bit verbose, but at the same time, it will make our code more robust. The behavior of our code will be more in line with our expectations. Increasing the use of `const` will require some adjustments not only from us but others as well. It will not be enough to set up a static code analyzer or implement an additional rule in **clang-tidy**. Many developers will have to change their attitude about `const` so that it can be used regularly. 

Let’s learn about the arguments against using const before going into its use.


Arguments Against const

Let’s learn about the arguments against using const before going into its use.

Introduction

Arguments using const

Local Variables

Local Members

Functions

Return Types

const Parameters

const and Smart Pointers

Rvalue References

Summary

Arguments Against const

What are the arguments against `const`?

Introduction

Arguments using const

Local Variables

Local Members

Functions

Return Types

const Parameters

const and Smart Pointers

Rvalue References

Summary

Arguments Against const

What are the arguments against const?

What are the arguments against `const`?