Re: xor

["Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>]

On Wed, 28 Mar 2012 17:16:36 +0100, Michael Moeller wrote:

> On Wed, 28 Mar 2012, Dmitry A. Kazakov wrote:
> 
>> On Wed, 28 Mar 2012 13:18:57 +0100, Michael Moeller wrote:
> 
>> P.S. I don't understand your problem. There are many ways to write files in
>> Ada. None of them is any difficult, provided you know what are doing and
>> the underlying OS supports things you request from it.
>>
> The degree of difficulty depends on your skills. From my point of view
> SPARC assembly or Prolog are pretty easy too.

Much to learn, while Ada I/O is just 3 calls:

1. Open file
2. Write data item (reiterated)
3. Close file.

If any complexity is there, then it is in the semantics of I/O. And this is
OS stuff unrelated to Ada.

There are only four ways to a write binary file (more or less independent
on each other):

1. Direct_IO (random access files);
2. Sequential_IO (sequential files);
3. Stream_IO (stream-oriented I/O on top of a file or a communication
object);
4. Direct OS calls, calls to C run-time (or for that matter, calls to
Prolog run-time if you know its calling conventions).

If you are unsure, in most cases, you can safely ignore 1, 2 and 4.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de