Structures

Relax. We'll talk through this in plain words — no textbook voice.

struct is a way to group different data types together as one object. It's handy whenever you want to bundle related data — like a student's name, age, and score — into a single unit.

#include <stdio.h>

struct Student {
  char name[30];
  int age;
  float score;
};

int main() {
  struct Student s1 = {"Sai", 20, 86.5};

  printf("Name: %s
", s1.name);
  printf("Age: %d
", s1.age);
  printf("Score: %.1f", s1.score);
  return 0;
}

struct Student creates a custom data structure. You access a member's value with the dot operator, like s1.name or s1.age.

You should see

Name: Sai Age: 20 Score: 86.5

Info

In real projects, structs are great for modeling related data like products, users, orders, or books.

Easy traps

It's easy to forget the semicolon ; at the end of a struct definition. You need to close it with };