Struct

#include <stdio.h>

typedef struct _MYSTRUCT

{

int  i1;

int  i2;

int  i3;

int  i4;

}MYSTRUCT;

typedef struct _MYSTRUCT2

{

int  i1;

int  i2;

int  i4;

int  i3;

}MYSTRUCT2;

void main()

{

MYSTRUCT m1;

m1.i1 = 1;

m1.i2 = 2;

m1.i3 = 3;

m1.i4 = 4;

MYSTRUCT2 * pm2 = (MYSTRUCT2 *)&m1;

printf("pm2->i1 : %d\n",pm2->i1);

printf("pm2->i2 : %d\n",pm2->i2);

printf("pm2->i3 : %d\n",pm2->i3);

printf("pm2->i4 : %d\n",pm2->i4);

}