FW: Is it a bug when use “<<”if the operator is out of the size "0~63"

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-----Original Message-----
From: Yang Yueming 
Sent: Friday, February 24, 2012 4:35 PM
To: gcc@xxxxxxxxxxx
Subject: Is it a bug when use “<<”if the operator is out of the size "0~63" 

Case:
#include <stdio.h>
#include <stdlib.h>

long long abc = 0x01234567891abcde;
	
long long xyz;

int main ()
{

	xyz = abc << 65; 

	printf("%llx\n", xyz);

        return 0;
	
}




The result of xyz should be "0",but it is "2468acf123579bc" ,same as  xyz = abc << 1,Why?

So as for "int a<<35"and etc..


YangYueming



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