🚀 go-pugleaf

In article <812736828snz@soliton.demon.co.uk>, Ian Cargill <ian@soliton.demon.co.uk> writes:
>It has been asserted elsewhere by someone that:
>
>> "The only guarantee that C gives is that the following data 
>>  structure can be written one way and read another."  
>>
>>   union {
>>     unsigned char a[4];
>>     int b;
>>     }
>
>I replied with my opinion that this is actually implementation defined 
>behavior, and that the only guarantee the standard gives is regarding 
>access to common initial sequences of structs in a union.
>
>Since there is still some dispute, I would welcome comment from the 
>assembled multitude, particularly those who know what they are talking 
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>about.  A majority verdict will do. :-)
 ^^^^^
Well, that never stopped me before, so here goes:

I don't think the person who said that was talking specifically about
properties of unions, but rather about the general rule that you can access
the storage of any object (e.g. "int b;") using an lvalue of type unsigned
char.




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