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Re: when to use a struct(ure) or a class?

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On 25/07/2020 00:29, G G wrote:
> On Friday, July 24, 2020 at 6:18:42 PM UTC-4, David Brown wrote:
>> On 25/07/2020 00:06, G G wrote:
>>> when do you choose a structure over a class when the 
>>> language supports functions inside of the struct(ure)
>>> definitions?
>>>
>>
>> Are you thinking specifically of C++, which has both "struct" and
>> "class" ?  (Maybe you have other languages in mind, but that's the only
>> one I know that fits your question.)  C++ as a language doesn't care
>> about "class" vs. "struct" - the only difference is the default
>> visibility of the members (private vs. public).  So it is a matter of
>> programmer style.  But a very common distinction is that types where the
>> data members have an invariant - some relationship between them that
>> should be kept - should be a "class" with private data members accessed
>> via methods (or sometimes friend functions).  A type where the data
>> members are basically independent and can reasonably be accessed
>> directly, would be a "struct" even if there are also member functions.
>> If there are virtual functions, or inheritance involved, you almost
>> certainly would call it a "class".
>>
>> So a simple x, y point structure would be a "struct", while something
>> holding an array of data along with a current length would be a "class".
> 
> the language i'm thinking about as swift.
> 

OK.  I don't know Swift at all, so I can't say if people use a similar
convention there.

It's nice to see real posts and real questions in this newsgroup, but I
suspect that you'll get more concrete answers in a dedicated Swift
newsgroup or Apple programming group (I don't think anyone else uses
Swift, do they?).

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Thread

when to use a struct(ure) or a class? G G <gdotone@gmail.com> - 2020-07-24 15:06 -0700
  Re: when to use a struct(ure) or a class? David Brown <david.brown@hesbynett.no> - 2020-07-25 00:18 +0200
    Re: when to use a struct(ure) or a class? G G <gdotone@gmail.com> - 2020-07-24 15:29 -0700
      Re: when to use a struct(ure) or a class? David Brown <david.brown@hesbynett.no> - 2020-07-25 00:52 +0200
      Re: when to use a struct(ure) or a class? Öö Tiib <ootiib@hot.ee> - 2020-07-25 15:31 -0700
        Re: when to use a struct(ure) or a class? Julio Di Egidio <julio@diegidio.name> - 2020-07-26 02:11 -0700
          Re: when to use a struct(ure) or a class? Öö Tiib <ootiib@hot.ee> - 2020-07-27 08:37 -0700
  Re: when to use a struct(ure) or a class? Julio Di Egidio <julio@diegidio.name> - 2020-07-25 00:02 -0700
  Re: when to use a struct(ure) or a class? "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> - 2020-07-25 09:16 +0200
    Re: when to use a struct(ure) or a class? Julio Di Egidio <julio@diegidio.name> - 2020-07-25 00:30 -0700

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