Practice - 4

What is the output of below code fragment ? 

#include <stdio.h>
#include <string.h>

void *x(char *p1, char *p2);

int main() {
        char *s, *d;

        strcpy (s, "hello");
        x(s, d);

        return 0;
}
void *x(char *p1, char *p2) {

        void *t = p2;
        while (*p2++ = *p1++);
        return t;

}

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