I'm reading a very old feature list of D and it says that D has struct member alignment control "to ensure compatibility with externally imposed data formats". So, questions: 1. How does one use that? 2. Is it accepted practice in D programming to write/read structs to/fro, say a disk file, without marshalling?

Tony

Tony Wrote:

> I'm reading a very old feature list of D and it says that D has struct member alignment control "to ensure compatibility with externally imposed data formats". So, questions: 1. How does one use that?

align attribute

> 2. Is it accepted practice in D programming to write/read structs to/fro, say a disk file, without marshalling?

It's easy to use feature. Custom serialization is needed on a higher level, say when saving "document".

"Kagamin" <spam@here.lot> wrote in message news:gfk16c$1bmq$1@digitalmars.com...
> Tony Wrote:
>
>> I'm reading a very old feature list of D and it says that D has struct member alignment control "to ensure compatibility with externally imposed data formats". So, questions: 1. How does one use that?
>
> align attribute

In my reading of D features, I thought I saw 3 alignment control mechanisms (?).

>
>> 2. Is it accepted
>> practice in D programming to write/read structs to/fro, say a disk file,
>> without marshalling?
>
> It's easy to use feature. Custom serialization is needed on a higher level, say when saving "document".

So the answer then is 'yes'?

Others chime in too please, this is a key issue/feature (hehe, which is it? Speak your opinions!).

Tony

On Fri, Nov 14, 2008 at 11:28 PM, Tony <tonytech08@gmail.com> wrote:
>
> "Kagamin" <spam@here.lot> wrote in message news:gfk16c$1bmq$1@digitalmars.com...
>> Tony Wrote:
>>
>>> I'm reading a very old feature list of D and it says that D has struct member alignment control "to ensure compatibility with externally imposed data formats". So, questions: 1. How does one use that?
>>
>> align attribute
>
> In my reading of D features, I thought I saw 3 alignment control mechanisms
> (?).

Then you probably saw wrong.  There's just 'align'.