CP : Structure with example

C Structure is a collection of different data types which are grouped together and each element in a C structure is called member.

• If you want to access structure members in C, the structure variable should be declared.
• Many structure variables can be declared for the same structure and memory will be allocated for each separately.
• It is a best practice to initialize a structure to null while declaring if we don’t assign any values to structure members.

DIFFERENCE BETWEEN C VARIABLE, C ARRAY, AND C STRUCTURE:

• A normal C variable can hold only one data of one data type at a time.
• An array can hold a group of data of the same data type.
• A structure can hold a group of data of different data types and Data types can be int, char, float, double and long double, etc.

Example : 

#include <stdio.h>

struct student

{

    char name[50];

    int roll;

    float marks;

} s;

int main()

{

    printf("Enter information:\n");

    printf("Enter name: ");

    scanf("%s", &s.name);

    printf("Enter roll number: ");

    scanf("%d", &s.roll);

    printf("Enter marks: ");

    scanf("%f", &s.marks);

    printf("Displaying Information:\n");

    printf("Name: ");

    puts(s.name);

    printf("Roll number: %d\n",s.roll);

    printf("Marks: %.1f\n", s.marks);

    return 0;

}

Output :