The C structure course has come to an end.

I suggest summarizing everything you've covered in this course:

A structure is a set of variables of different data types, united under one common name.

Structures allow you to describe complex objects and data structures.

The structure contains **fields** - these are "cells" for storing information inside the structures.

To get **direct** access to the structure fields, you need to use the "**.**" operator:

A structure can also be accessed through a pointer to the same structure, this is called "indirect access". The arrow operator "**->**" is used:

Pointers to structures are required in case of dynamic memory allocation.


**Memory allocation** for a structure instance **is determined by the largest field** in that structure:


Also, C has unions. Unions are similar to structures, but **union fields are stored in one common memory area**, while in structures all fields are stored sequentially, taking into account alignment and padding.


Structures can be declared **inside other structures**. Such structures are called **nested structures**.  


A nested structure **declared inside** a structure **cannot be used outside of that structure**. To reuse a nested structure, it must be declared outside of the structure.

**Structures and unions can be anonymous**, without a name.

You can use anonymous structs/unions when they are nested and will **only be used where they are declared.**


Using structures and pointers, we were able to implement a linked list.

A linked list is a data structure that consists of nodes, where each node contains data and a pointer to the next node.


Functions were created to create and add a node to the list **AddNewNode()**, to display the list on the screen **PrintList()** and to free the memory **FreeList()** allocated for the list.

**Congratulations on successfully completing the course on "Structures in C"! This is a significant achievement that opens up new opportunities for you in programming and software development. Studying structures in C is an important step towards a deep understanding of low-level programming and effective data management.**

**Your efforts and persistence have led you to this success, and now you have important skills that will help you create more complex and effective programs. May the knowledge gained during this course become a solid foundation for your future success in the IT field.**


The course covers the principles of creating and using structures, their memory and methods of data manipulation.

In this section you will learn what a structure is, why they exist and how to create them.

In this section we will review what pointers are, learn why pointers are used in structures and, most importantly, how this connection is implemented.

In this section, you'll learn how structures are stored in memory, see what alignment and padding are, and get acquainted with unions.

In this section you will learn about the features of nested structures, their application within other structures, get acquainted with anonymous structures and their application, and also superficially familiarize yourself with the most common data structures.

In this section you will implement a simple but very common data structure Linked List, and also create the necessary functions for working with the list.

C Structs

Overview

C Structs

Overview