What Is the Use of Struct in Data Structure?


Larry Thompson

When it comes to data structures, the struct plays a crucial role. It allows us to group related data together and create more complex data types. In this article, we will explore the uses of struct in data structures and how it can enhance our programming experience.

What is a struct?

A struct, short for structure, is a user-defined datatype in C that allows us to combine different types of variables under a single name. It provides a way to represent a collection of related information as a single unit, making it easier to organize and manipulate data.

To define a struct, we use the struct keyword followed by the name of the struct and a list of member variables enclosed in curly braces. Each member variable has its own datatype and name.

A simple example of a struct representing a person could be:

struct Person {
    char name[50];
    int age;
    float height;

Why use structs?

The main advantage of using structs is that they allow us to create more complex data types by grouping related variables together. This can make our code more organized, readable, and maintainable.

1. Organizing Related Data:

In many cases, we need to deal with multiple pieces of information that are related to each other. For example, when working with employee records, it makes sense to group together attributes like name, age, salary, etc., into a single struct rather than having separate variables for each attribute.

struct Employee {
    char name[50];
    int age;
    float salary;

2. Passing Structs to Functions:

Structs can be passed as arguments to functions, allowing us to operate on multiple related variables at once. This can simplify our code and make it more efficient.

void printEmployee(struct Employee emp) {
    printf("Name: %s\n", emp.name);
    printf("Age: %d\n", emp.age);
    printf("Salary: %.2f\n", emp.salary);

3. Creating Dynamic Data Structures:

Structs can also be used to create dynamic data structures like linked lists, trees, and graphs. These data structures require the use of pointers and memory allocation, and structs provide a convenient way to organize the data within these structures.


The struct is a powerful feature in C that allows us to group related data together and create more complex data types. It helps in organizing data, passing structs to functions, and creating dynamic data structures. By using structs effectively, we can write more organized and efficient code.

In summary, the use of struct in data structures is essential for managing large amounts of related information efficiently. It simplifies our code by providing a way to group variables together under a single name. Whether you are working on simple tasks or complex projects, understanding and utilizing structs will greatly enhance your programming capabilities.

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