On 26/08/14 13:43, Jeff King wrote:
> On Tue, Aug 26, 2014 at 01:37:44PM +0100, Ramsay Jones wrote:
>>> On my 64-bit system using gcc, sizeof() returns 16; it has to pad the
>>> whole thing to 64-bit alignment in case I put two of them in an array.
>>> But offsetof(name) is 12, since the array of char does not need the same
>>> alignment; it can go right after the type and make use of the padding
>> Hmm, interesting. I must re-read the standard. I was convinced that the
>> standard *requires* any alignment padding to come *before* the name field.
>> (how would you put a, non-trivial, variable data structure into an array?)
> I think you don't. How would you compute a if a has a variable
> You can put a flex-array structure into an array, but then each element
> has the flex member as zero-size (and you should not access it, of
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