union logic
{

int i;
char x[2];
//char y;

}emb={510,’A’,’B’};
int main()
{

printf(“%d\n”,emb.i);
printf(“%c\n”,emb.x[0]);
printf(“%c\n”,emb.x[1]);
printf(“%d\n”,emb.i);
}

struct logic
{
char ch[10];
char x;
int y;

char z;
//int i;
};

int main()
{
struct logic *p;
strcpy(p->ch,”hello”);
p->x=’b’;
p->y=42;
p->z=’c’;
printf(“%s\n%c\n%d\n%c\n”,p->ch,p->x,p->y,p->z);
}

the  name and containt of these file area as follows…

main.c      one include file and one printf statment

one.c       one include file and one printf statments

two.c       one include file and one printf statement

header1.h     only printf statement

header2.h      only printf statment

header3.h      only printf statments

i got error while executing it and no object code provided.