Re: OO in octave.

[Sergei Steshenko]

----- Original Message -----
> From: ernst <address@hidden>
> To: "address@hidden" <address@hidden>
> Cc: 
> Sent: Thursday, January 31, 2013 2:13 AM
> Subject: Re: OO in octave.
> 
> Hi Sergei,
>> 
>> 
>> 
>>  ----- Original Message -----
>>>  From: ernst <address@hidden>
>>>  To: address@hidden
>>>  Cc: 
>>>  Sent: Thursday, January 31, 2013 1:09 AM
>>>  Subject: OO in octave.
>>> 
>>>  Hi all,
>>>  i know OO from java: x.function(a,....) means function(x,a,...)
>>>  where the class of x determines the choice of the function.
>>> 
>>>  For octave i did not find an according statement in the docu.
>>>  Does octave rely on the 1st argument only, as java does or does it look
>>>  after all?
>>> 
>>>  greetings, Ernst
>>  If you need only
>> 
>>  x.function(a,....) means function(x,a,...)
>> 
>>  then OO is just syntax sugar you do not really need.
>> 
>>  If you need inheritance and polymorphism, then you need OO.
>> 
>>  But Octave essentially supports polymorphism. Even UNIX/Linux 'ls' 
> command (and many others) are polymorphic functions.
>> 
>>  Regards,
>>    Sergei.
> 
> Well, I need. inheritance and polymorphism.. yes that's what i meant by
> "where the class of x determines the choice of the function.'
> 
> I just wondered, whether octave checks for the first argument only.
> And i was confused, that i did nowhere in the docu find a word about the
> search mechanism.
> Something like:
> "If the first argument arg1 has class <cls> (determined by function
> class(arg1)),
> then the function definition is searched for in folder @<cls> and
> subfolders recursively. "
> 
> Is this the truth?
> 
> Also it seems to me as if only member methods are supported. Right?
> 
> regards,
> 
> Ernst
>> 


Ernst,

I am not an Octave developer, nor I am a user of OO in Octave, so I can't 
answer your questions.

My point was that if you only need

x.function(a,....) means function(x,a,...)

, it is not a real need.

I hope Octave developers will answer your questions in detail.

Regards,
  Sergei.