Computer Programming C Laboratory: Unions C Programs

C Program to demonstration on pointer to unions

<< Previous

Next >>

Using Unions - C Programming

C Program to demonstration on pointer to unions.

/* C Program to demonstration on pointer to unions */

#include <stdio.h>

#include <conio.h>

typedef union

{

int num;

char *chr;

float dec;

}rec;

int main()

{

/* Local definition */

rec uniondata; /* declare union of the rec type */

rec *ptr; /* &union pointer of the rec type */

ptr =&uniondata; /* now point to the first union*/

uniondata.num = 10;

printf("The union value is now: %d\n", ptr‒> num);

uniondata. chr = "ten";

printf("The union value is now: %s\n",ptr‒> chr);

uniondata.dec 0.250;

printf("The union value is now: %f\n",ptr‒> dec);

return 0;

} /* main */

OUT PUT

The union value is now: 10

The union value is now: ten

The union value is now: 0.250000

EXPLANATION: This program defines a union type that contains an int, char or float value. A union and a pointer are declared, then various values are assigned to the union. Each one is assigned to the regular union then retrieved by the pointer, using the arrow operator.

Computer Programming C Laboratory: Unions C Programs : Tag: C Programming : - C Program to demonstration on pointer to unions

<< Previous

Next >>

Computer Programming C Laboratory: Unions C Programs

C Program to union global declarations

C Program to find size of union and number of bytes reserved for it

C Program to demonstration on pointer to unions

C Program to create user defined data type and use it in the program

C Program to create user-defined datatype from structure

C Program to print variables from memory address

C Program to altering the allocated memory

The colors in the rainbow are enumerated in C Program

Write a program to transfer a structure to a function by passing the structure address (a pointer) to the function

Write a C program to pass an array of structure to a function, and return a pointer to a structure

Write a C program to pass union to a function

Write a C program to print name, and address using structure

Under Subject

Computer Programming C Laboratory

CS25C01 1st Semester EEE, ECE, CSE, CSE(CY), AIDS, IT practical Laboratory Manual | 2025 Regulation | 1st Semester Laboratory 2025 Regulation

Related Subjects

English Essentials I

EN25C01 1st Semester | 2025 Regulation | 1st Semester 2025 Regulation

தமிழர் மரபு - Heritage of Tamils

UC25H01 1st Semester | 2025 Regulation | 1st Semester 2025 Regulation

Applied Calculus

MA25C01 Maths 1 M1 - 1st Semester | 2025 Regulation | 1st Semester 2025 Regulation

Applied Physics I

PH25C01 1st Semester | 2025 Regulation | 1st Semester 2025 Regulation

Applied Chemistry I

CY25C01 1st Semester | 2025 Regulation | 1st Semester 2025 Regulation

Makerspace

ME25C04 1st Semester | 2025 Regulation | 1st Semester 2025 Regulation

Computer Programming C

CS25C01 1st Semester | 2025 Regulation | 1st Semester 2025 Regulation

Computer Programming Python

CS25C02 1st Semester | 2025 Regulation | 1st Semester 2025 Regulation

Fundamentals of Electrical and Electronics Engineering

EE25C03 1st Semester EEE Depart | 2025 Regulation | 1st Semester 2025 Regulation

Introduction to Mechanical Engineering

ME25C03 1st Semester Mechanical Dept | 2025 Regulation | 1st Semester 2025 Regulation

Introduction to Civil Engineering

CE25C01 1st Semester Civil, Agri Departments | 2025 Regulation | 1st Semester 2025 Regulation

Essentials of Computing

CS25C03 1st Semester - AIDS, CSE, CSE(CY), IT Department | 2025 Regulation | 1st Semester 2025 Regulation

Applied Physics I Laboratory

PH25C01 1st Semester practical Laboratory Manual | 2025 Regulation | 1st Semester Laboratory 2025 Regulation

Applied Chemistry I Laboratory

CY25C01 1st Semester practical Laboratory Manual | 2025 Regulation | 1st Semester Laboratory 2025 Regulation

Computer Programming C Laboratory

CS25C01 1st Semester EEE, ECE, CSE, CSE(CY), AIDS, IT practical Laboratory Manual | 2025 Regulation | 1st Semester Laboratory 2025 Regulation

Computer Programming Python Laboratory

CS25C02 1st Semester practical Laboratory Manual | 2025 Regulation | 1st Semester Laboratory 2025 Regulation

Engineering Drawing

ME25C01 EEE, Mech, Agri, EEE Depts | 2025 Regulation | 2nd Semester 2025 Regulation

Basic Electronics and Electrical Engineering

EE25C04 1st Semester ECE Dept | 2025 Regulation | 1st Semester 2025 Regulation

Essentials of Computing - Laboratory

CS25C03 1st Semester AIDS, CSE, CSE(CY), IT Depts | practical Laboratory Manual | 2025 Regulation | 1st Semester 2025 Regulation