the above problem i overcame ,when i send the reference of the s1!!!
Or else i can call the PrintScore inside the ReadScore function..this will also eliminates the problem.

When i print the score i got junk , i understood since initially s1 was not initialised, and
when it is passed to function ReadScore s1 now become a local scope for that function and
value got destroyed after the function ends and dats y i got junk value.
But When i am doing like this

#include<iostream.h>

struct Score
{
	int nScore;
};
void ReadScore(Score s1)
{
	Score s2;
	cout<<"\nEnter Score:";
	cin>>s2.nScore;
	s1 =s2;
}
void PrintScore(Score s1)
{
	cout<<"\nScore="<< s1.nScore;
}

int main()
{
	Score s1;
	ReadScore(s1);
	PrintScore(s1);
	return 0;
}

i m still getting junk.Well i have created another structure variable s2, and then i assigned
s2 to s1, so it will be copying the score, Correct??? then y the value is getting destroyed after the f
the function ends

For example (code):

typedef struct Coordinate
{
short X;
short Y;
} COORD, *PCOORD;

int main()
{
COORD pos;
pos.X = 0;
pos.Y = 0;
PCOORD pPos = &pos;
}

At the beginning my main function looked like the main() below:

int main()
{
//this is the wrong way to do things
PCOORD pPos;
pPos->X = 0;
pPos->Y = 0;
//if you use pPos now in somewhere compiler gives you warning that pPos is not initialized and my program crashed if I run that.
// Why is it so? Why I cant initialize?
}

But can a function return a structure of data?

Cheers.

#include <iostream.h>
#include <conio.h>

struct web
{
int adv;
float rate;
float click;
};

float money(int adv,float rate,float click)
{
float totalearning;
totalearning = (adv * rate * click);
return totalearning;
}

web mny;

void main()
{
float res;

clrscr();

cout << "n How many advertise was shown: ";
cin >> mny.adv;

cout << "n What was rate of click : ";
cin >> mny.rate;

cout << "n Average of earning per click : ";
cin >> mny.click;

res = money(mny.adv , mny.rate , mny.click);

cout << "n The Total earning is " << res;

getch();
}

/* End of Program */