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C Programming - Declarations and Initializations - Discussion

Discussion Forum : Declarations and Initializations - Point Out Errors (Q.No. 3)
Declarations and Initializations
3.
Point out the error in the following program. 
#include<stdio.h>
struct emp
{
    char name[20];
    int age;
};
int main()
{
    emp int xx;
    int a;
    printf("%d\n", &a);
    return 0;
}
Error: in printf
Error: in emp int xx;
No error.
None of these.
Answer: Option
Explanation:

There is an error in the line emp int xx;

To overcome this error, remove the int and add the struct at the begining of emp int xx; 

#include<stdio.h>
struct emp
{
    char name[20];
    int age;
};
int main()
{
    struct emp xx;
    int a;
    printf("%d\n", &a);
    return 0;
}
Discussion:
30 comments Page 1 of 3.
Shrutika said:   5 months ago
Why we're taking %d as a format specifier because actually we want the address to get printed So, we must use %p as a format specifier.
Kajal said:   4 years ago
As per my knowledge, We can't use & in printf statement.
Kalyani said:   4 years ago
Could anyone please explain what is emp?
(1)
Divya said:   5 years ago
where is "int a" used? Please explain me.
Vaibhav said:   5 years ago
How can I identify?

That,
emp int xx; is an error can anyone help me?
Subhra said:   5 years ago
The printf will print the address of a.
Harsh said:   6 years ago
@Sesi Praveen.

'a' is not initialized. The Compiler will take by the default value for a in print statement. The Main error is in emp int xx statement.
Jaiyant Prasad said:   6 years ago
We can't use & in print.

So option A is also correct.
Vasudev said:   6 years ago
Generally just after declaration of a variable, no memory will be allotted to the variable so, how can it print the address of the variable a?
Karthik said:   6 years ago
The struct emp xx also doesn't work as it gives an error "two or more data types in declaration of xx"
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