🚀 go-pugleaf

In article <465qd1$k90@newshost.lanl.gov>,
Tanmoy Bhattacharya <tanmoy@qcd.lanl.gov> wrote:
>> If you malloc, say, 3 bytes, malloc is not required to provide alignment
>> for a 4-byte object, say an int.
> It is funny. Last time this question came up, someone posted that the
> committee believes that malloc result is always aligned for everything! Will
> that person please repost?

I asked this in a Defect Report. The response is still in balloting, but
will almost certainly be that it must be correctly aligned.

> Do the record of responses contain only the `response' or also the logic by
> which the resonse was reached?)

The logic used is sometimes given in the responses, and sometimes not.
Even when given, it isn't always easy to understand or agree with.

In this case, it simply says that the Standard says "aligned for any
type".

> But can a struct not have stricter alignment than its first member? So, the
> result of malloc certainly has to be aligned for an int, but is it aligned
> for struct blah? Again, I am not asking about `practically', but what is
> guaranteed. 

Yes and yes.

-- 
Clive D.W. Feather                       | If you lie to the compiler,
clive@demon.net        (work, preferred) | it will get its revenge.
clive@stdc.demon.co.uk (home)            |   - Henry Spencer