union MyUnion{
int myInt;
char myChar[sizeof(int)];
};
void main()
{
MyUnion m;
m.myInt = 0x01020304;
printf("value :%d\n",m.myChar[0]); // -> value : 4
printf("value :%d\n",m.myChar[1]); // -> value : 3
printf("value :%d\n",m.myChar[2]); // -> value : 2
printf("value :%d\n",m.myChar[3]); // -> value : 1
}
-----Original Message-----
From: linux-c-programming-owner@xxxxxxxxxxxxxxx
[mailto:linux-c-programming-owner@xxxxxxxxxxxxxxx] On Behalf Of ratheesh k
Sent: Monday, December 20, 2010 2:10 PM
To: linux-c-programming@xxxxxxxxxxxxxxx
Subject: union to get parts of integer
typedef struct {
char parts[4];
} node ;
int i=0x12345678
((node *)&i)->parts[0];
((node *)&i)->parts[1];
((node *)&i)->parts[2];
((node *)&i)->parts[3];
Is there any mechanism to split into bytes using the power of union ?
-Ratheesh
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