From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Reza Hoorfar" <rhoorfar@gmail.com>
Subject: RE: union to get parts of integer
Date: Mon, 20 Dec 2010 15:33:06 +0330
Message-ID: <000601cba03d$e10b1440$a3213cc0$@gmail.com>
References: <AANLkTikAB_-kO_cmD5VQRtztx=4V9NDcmU4uWBDE=ON8@mail.gmail.com>
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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@vger.kernel.org
[mailto:linux-c-programming-owner@vger.kernel.org] On Behalf Of ratheesh k
Sent: Monday, December 20, 2010 2:10 PM
To: linux-c-programming@vger.kernel.org
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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