alias question

[Andrew Haley]

On 02/18/2011 02:29 AM, Segher Boessenkool wrote:
>> If I have a char array, and it's always written by the char array, can it
>> be always reliably read by any combination of short/int/long pointers?
>>
>> As I understand, the compiler will see byte writes for all types, so
>> readind shoulg be fine without violating any strict alias rules.  Just
>> can't write the array by any other type than char[] access.  Right?
>
> No.  You can access anything only as its declared type or character type;
> an array of char thus can be accessed as char only.

Not quite: if you write an int to an array of char, you can read it
back again.  What matters is the effective type.

Andrew.