Explain about the unions, C/C++ Programming

Assignment Help:

Explain what are Unions?

The Unions like as structures, contain members whose individual data types may perhaps differ from one another. Though the members that create a union all share the same storage area within the computer's memory, whereas every member within a structure is assigned its own unique storage area. Therefore the unions are used to converse memory and they are useful for applications involving multiple members where values require not be assigned to all of the members at anyone time.

Within a union, the bookkeeping need to store members whose data types are different (having different memory requirements) is handled automatically by the compiler. Though the user must keep track of what type of information is stored at any given time. An effort to access the wrong type of information will produce meaningless results. 


Related Discussions:- Explain about the unions

Explain about the variables in c language, Explain about the Variables in c...

Explain about the Variables in c language? The Variable is an identifier that is used to represent some specified kind of information within a designated portion of the program

Is always the default constructor for fred fred::fred()?, Is always the def...

Is always the default constructor for Fred Fred::Fred()?

Defines the entry point for the console application, Defines the entry poin...

Defines the entry point for the console application. // #include "stdafx.h" #include #include #include"conio.h" using namespace std; double Determinant(double a[][3],int forde

Board coloring, in this problem u given a board in which some of the eleme...

in this problem u given a board in which some of the elements are placed as shown in diagram below .each element represent a color .fill the other elements in the board such that n

Computer Science Engineering C++ Homework, Temperature Conversions. Problem...

Temperature Conversions. Problems 28 through30generate temperature-conversion tables. Use the following equations that give relationships between temperatures in degrees Fahrenheit

Using the substitution model illustrate the process, Each of the following ...

Each of the following two procedures defines a method for adding two positive integers in terms of the procedures inc, which increments its argument by 1, and dec, which decrements

Stack operations - c++, Stack operations - C++: Write a program to def...

Stack operations - C++: Write a program to define basic stack operations in c++. int Stack::push(int elem) {    int m = getmax();    if (top    {       put_

Explain hiding overloaded functions, Hiding overloaded functions We can...

Hiding overloaded functions We cannot overload a base class function by redefining it in a derived class with a dissimilar argument list. Consider examples to see if similar fu

Define a class?, Define a class? A: It is an expanded concept of a data ...

Define a class? A: It is an expanded concept of a data structure: rather than holding only data, it can hold data and functions both.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd