C Programming - Input / Output - Discussion

Discussion Forum : Input / Output - Yes / No Questions (Q.No. 3)
3.
Will the following program work?
#include<stdio.h>

int main()
{
    int n=5;
    printf("n=%*d\n", n, n);
    return 0;
}
Yes
No
Answer: Option
Explanation:
It prints n=    5
Discussion:
22 comments Page 1 of 3.

Bambi said:   1 decade ago
What is the significance of '*' in this ?

Vivek said:   1 decade ago
How it works? Please explain.

Madhusudan said:   1 decade ago
'*' will provide 4 spaces in between 'n=' and 5.

Rozario selvanathan said:   1 decade ago
Anyone please make it clear...

Veena said:   1 decade ago
I thought here two n's are not required. Please any one can explain.

Lakshmidevi said:   1 decade ago
Using * means it skips one variable, so only one n value is taken and another n value is ignored.

Nandhu said:   1 decade ago
Please anybody can explain this.

Medha said:   1 decade ago
One n is ignored with 4 space because of '*'and another n value is taken.

NITESH KHATRI said:   1 decade ago
#include<stdio.h>

int main()
{
int n=5,l=9;
printf("n=%*d\n", n, l);
return 0;
}

What @Medha said is correct, '*' will ignore the first variable and will print the value of l
Try to run this program, all confusion will be cleared.

Sunitha said:   1 decade ago
Here in printf("n=%*d\n", n, n);

("%*d",n,n) tells the compiler to skip the first n value.

Thus second n value gets printed.


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