output :3214811820Code:#include<stdio.h> struct s { }; struct s gs; int main() { struct s s1; printf("%u \n",gs); printf("%u \n",s1); printf("%u \n",&gs); printf("%u \n",&s1); return 0; }
3214811820
134518176
3214811652
can any one give exactlly s1,gs,&s1,&gs returns?
What's wrong with the answer you got here:
wt is output of s1, &s1
What are you doing? The first two printf's are meaningless garbage.
The second two are the addresses that your empty structures are at.
Who comes up with these questions?
You can't just use non-existant data in an empty structure as if it were a standard type.
The first two are undefined because print expects an unsigned integer, and not a struct s. Whatever nonsensical output you get (if not a crash) is meaningless, because it isn't supposed to be "anything".
&s1 and &gs returns the addresses in memory where the two instances of the struct are located. They should be printed using %p, not %u, however, since the later results in undefined behavior.
Originally Posted by Adak
