add without carry

[Christophe]

Bruno Desthuilliers a écrit :
> Bryan Olson wrote:
>> Hugh wrote:
>>> Sorry, here's an example...
>>>
>>> 5+7=12
>>>
>>> added without carrying, 5+7=2
>>>
>>> i.e the result is always less than 10
>> Are you looking for bitwise exclusive or? In Python it's
>> the '^' operator. For example:
>>
>>     print 5 ^ 7
>>
>>
>>>> 10 ^ 21
> 31
> 
> Not really "less than 10"...

But you must use numbers smaller than 10 as input! Still :

 >>> 8 ^ 2
10

:D