Define the difference between union and structure, Computer Engineering

Assignment Help:

Define the difference between union and structure

The main difference between union and structure is the storage allocation. In Union , for each variable the compiler allocates a piece of storage that can accommodate the largestof the specified member. For example, consider the above structure is redefined as a 'union'.

union stud{

} student;

char name[15];

int regno;

char address[40];

Here the compiler allocates a storage that can accommodate 'address'. All the other variables in the structure share that location. i.e., name and reg.no values are stored in the same location where the address was stored.

But in structure each variable allocates it own storage area.

 

 


Related Discussions:- Define the difference between union and structure

Why do you create parameters, Parameters are like script variables. They ar...

Parameters are like script variables. They are used to vary input to the server and to imitate real users. Dissimilar sets of data are sent to the server every time the script is r

Determine the minimum configuration of the decoder, The following switching...

The following switching functions are to be implemented using a Decoder f 1   = ∑ m(1, 2, 4, 8, 10, 14)   f 2   = ∑ m(2, 5, 9, 11)   f 3   = ∑ m(2, 4, 5, 6, 7) The minimum configur

Explain register marker, Explain Register marker. Register marker: St...

Explain Register marker. Register marker: Strowger selectors doing searching and counting. Conversely, the crossbar switch has no 'intelligence'. Something external to the

What are the different between hypertext hypermedia, What are the different...

What are the different between hypertext hypermedia? Hypertext is fundamentally the same like regular text; this can be stored, read or searched and edited along with a signifi

Set up this problem as an lp problem, The Laser Computer Printer Company de...

The Laser Computer Printer Company decides monthly what to produce during the subsequent month. They produce three types of printers, the Laser Rocket, the Alpha Laser, and the La

What is the window of the working set of a process, What is the window of t...

What is the window of the working set of a process? The window of the working set of a method is the total number in which the method had referred the set of pages in the work

What are the advantages of segmentation, What are its advantages? How is se...

What are its advantages? How is segmentation implemented in typical microprocessors? The first benefit that memory segmentation has is that only 16 bit registers are necessary

Specifying optimisation criteria of describe function, Specifying Optimisat...

Specifying Optimisation Criteria Specify values to be minimized, maximized or optimized. You can understand it as way you normalize data in database. For instance, you should

Linq file extension, What is the LINQ file extension that interacts with Co...

What is the LINQ file extension that interacts with Code Behind objects. Ans) its .dbml

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