What is the main difference between STRUCTURE and UNION?

Answer Posted / vijay nag

All the members of the structure can be accessed at
once,where as in an union only one member can be used at a time.
Another important difference is in the size allocated to a
structure and an union.
for eg:
struct example
{
int integer;
float floating_numbers;
}
the size allocated here is sizeof(int)+sizeof(float);
where as in an union
union example
{
int integer;
float floating_numbers;
}
size allocated is the size of the highest member.
so size is=sizeof(float);

Is This Answer Correct ?    802 Yes 65 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to test pierrot divisor

2273


write a function to give demostrate the functionality of 3d in 1d. function prototye: change(int value,int indexX,int indexY,int indexZ, int [] 1dArray); value=what is the date; indexX=x-asix indexY=y-axis indexZ=z-axis and 1dArray=in which and where the value is stored??

4161


Design an implement of the inputs functions for event mode

2973


What is the difference between proc means and proc tabulate ? explain with a simple example when you have to use means or tabulate?

3722


why nlogn is the lower limit of any sort algorithm?

2387






how to create a 3x3 two dimensional array that will give you the sums on the left and bottom columns

3135


why do you use macros? Explain a situation where you had to incorporate macros in your proc report? use a simple instream data example with code ?

2269


In a gymnastic competition, scoring is based on the average of all scores given by the judges excluding the maximum and minimum scores. Let the user input the number of judges, after that, input the scores from the judges. Output the average score. Note: In case, more than two judges give the same score and it happens that score is the maximum or minimum then just eliminate two scores. For example, if the number of judges is 5 and all of them give 10 points each. Then the maximum and minimum score is 10. So the computation would be 10+10+10, this time. The output should be 10 because 30/3 is 10.

2393


A program that will create a movie seat reservation. The program will display the summary seats and its status. The user will be ask what seat no. to be reserved, then it will go back again to the summary to display the updated seat status. If the seat no. is already reserved then it will prompt an error message. And also if the input seat no is out of range then it will also prompt an error message. The program is continuously running. Termination of the program will depends on how the programmer will apply. Sample output: Movie Seats Reservation Summary of Seats: Seat 1: Available Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 1 Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 6 The Seat no. is out of range! Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 1 The Seat no. is already reserved! Movie Seats Reservation Summary of Seats: Seat 1: Reserve Seat 2: Available Seat 3: Available Seat 4: Available Seat 5: Available Enter seat no. (Press 0 to terminate Or the assigned seat capacity) : 0 GoodBye... Thank You!!!

1850


Sir... please give some important coding questions asked by product companies..

1809


What is data _null_? ,Explain with code when u need to use it in data step programming ?

2833


What is full form of PEPSI

1885


Write a program to model an exploding firecracker in the xy plane using a particle system

3702


#include int main(void) { int a=4, b=2; a=b<>2 ; printf("%d",a); return 0; }

1086


create a C-code that will display the total fare of a passenger of a taxi if the driver press enter,the timer will stop. Every 10 counts is 2 pesos. Initial value is 25.00

6324