C++ Programming - Functions - Discussion
Discussion Forum : Functions - Programs (Q.No. 4)
4.
Which of the following statement is correct about the program given below?
#include<iostream.h>
static int b = 0;
void DisplayData(int *x, int *y = &b)
{
cout<< *x << " " << *y;
}
int main()
{
int a = 10, b = 20 ;
DisplayData(&a, &b);
return 0;
}Discussion:
10 comments Page 1 of 1.
Rohitash said:
8 years ago
The static variable initial value only one time assigned in a program. Why here assign two times, b=0, b=20?
Mounika said:
1 decade ago
Here b variable is globally declared as static, is it possible to change value of b in main function.
Shreyas said:
1 decade ago
Default argument will not work, as we are passing value from function Display Data.
Anonymous said:
1 decade ago
Yes, value of a static variable can be changed, but their address never changes.
Shivang said:
5 years ago
It uses call by reference so the value of the main function will be the answer.
Rohullah tofan said:
9 years ago
Is anyone knows the correct answer?
Pooja said:
8 years ago
A is the correct answer. I agree.
Vishal said:
1 decade ago
But what is the correct answer?
Anonymous said:
10 years ago
Is the given answer correct?
Sahil said:
9 years ago
I think it should be 10 0.
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