why i getting different outputs?

Hi any one can explain me ,why i getting these outputs?

Code:

---

#include<stdio.h>
struct s
{
int data;
};

struct s s1;
int main()
{
printf("%u \n",s1);
printf("%u \n",&s1);
return 0;
}

---

i thinking s1 return also address .but both outputs are not same.

please give explanation on above outputs

s1 is a not an address. It's a variable of type "struct s". &s is an address.
Note: To print addresses use %p. eg.

Code:

---

int i=9;
printf("%p",(void *)&i);

---

Quote:

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Originally Posted by nkrao123@gmail.

please give explanation on above outputs

---

Why don't you say what the output was, and what you were expecting?

The first one probably gives you the value of s1.data, altho that is not the proper way to ask for it. s1.data is uninitialized, so it may be anything (I think in this case the compiler may set it to zero).

The second one is the address of s1, altho addresses are usually understood as hexidecimal values, as BEN10 indicates.