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Re: missing gcc attribute "overwritable"

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On 7/5/2020 10:34 AM, aotto1968zwei@gmail.com wrote:
> Am Freitag, 3. Juli 2020 09:38:02 UTC+2 schrieb aotto1...@gmail.com:
>> Am Freitag, 3. Juli 2020 04:33:06 UTC+2 schrieb donal...@gmail.com:
>>> On Thursday, July 2, 2020 at 1:56:33 PM UTC-4, aotto1...@gmail.com wrote:

<snip>

> After think about It, I come to the conclusion that it would be better to switch from:
>> __attribute__((overwritable))
> to the keyword "overwrite".
> 1. "overwrite" have to be applied to the OVERWRITING function and NOT to the
>     OVERWRITTEN function, this mean that OVERWRITABLE is the default.
> 2. This correspond with the c# definition of "override"
>     In the google translate the "overwrite" and the "override" are both the
>     same, the German word "überschreiben"
> 3. the "overwrite" will BREAK the c-syntax - NO compiler WITHOUT "overwrite"
>     feature will be able to translate this code
> 4. the new keyword "overwrite" implicit "static".

It appears you have changed the goal from manual adjustment of some 
generated library code to polymorphism - which is what the "override" 
keyword is about in C++ (and other languages including C#)
There are very good reasons for which polymorphism is explicitly part of 
the OO design[*], and it applies only to member functions, not global 
(or static) functions.
In fact, even in C polymorphism is typically implemented via function 
pointers inside some data structure (although C can have global function 
pointers as well).


Back to the original point, IIUC this feature was supposed to "ease" the 
work of the programmer when adjusting some generated code.
If so, you are envisioning an environment where you have some "bad" code 
generated by some tool, and "good" handwritten code that should replace 
the bad one - however, both the bad and the good code should survive in 
the product (otherwise there's no point in asking the compiler to 
replace anything).
/If/ this is what this is about, my opinion is that it is not going to 
make anyone's life easier.


[*] In fact when he first introduced virtual functions Stroustrup was 
criticized by some computer scientists at the time - the objection was 
that if the programmer does not know what some function does at the 
point of calling, then the software design is poor; the answer is that 
polymorphism does make sense in the context of object semantics.



> 
> Example:
<snip>

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missing gcc attribute "overwritable" aotto1968zwei@gmail.com - 2020-07-02 00:31 -0700
  Re: missing gcc attribute "overwritable" mark.bluemel@gmail.com - 2020-07-02 01:38 -0700
  Re: missing gcc attribute "overwritable" David Brown <david.brown@hesbynett.no> - 2020-07-02 12:03 +0200
  Re: missing gcc attribute "overwritable" Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-07-02 06:18 -0700
  Re: missing gcc attribute "overwritable" scott@slp53.sl.home (Scott Lurndal) - 2020-07-02 16:33 +0000
    Re: missing gcc attribute "overwritable" aotto1968zwei@gmail.com - 2020-07-02 10:57 -0700
  Re: missing gcc attribute "overwritable" Andrey Tarasevich <andreytarasevich@hotmail.com> - 2020-07-02 10:21 -0700
  Re: missing gcc attribute "overwritable" Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-07-02 10:42 -0700
  Re: missing gcc attribute "overwritable" aotto1968zwei@gmail.com - 2020-07-02 10:56 -0700
    Re: missing gcc attribute "overwritable" Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-07-02 11:33 -0700
      Re: missing gcc attribute "overwritable" Bart <bc@freeuk.com> - 2020-07-02 19:53 +0100
    Re: missing gcc attribute "overwritable" donalhambra@gmail.com - 2020-07-02 19:32 -0700
      Re: missing gcc attribute "overwritable" mark.bluemel@gmail.com - 2020-07-03 00:30 -0700
        Re: missing gcc attribute "overwritable" aotto1968zwei@gmail.com - 2020-07-03 00:36 -0700
          Re: missing gcc attribute "overwritable" mark.bluemel@gmail.com - 2020-07-03 06:32 -0700
            Re: missing gcc attribute "overwritable" mark.bluemel@gmail.com - 2020-07-03 07:08 -0700
        Re: missing gcc attribute "overwritable" Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-07-09 10:02 -0700
      Re: missing gcc attribute "overwritable" aotto1968zwei@gmail.com - 2020-07-03 00:37 -0700
        Re: missing gcc attribute "overwritable" richard@cogsci.ed.ac.uk (Richard Tobin) - 2020-07-03 15:30 +0000
          Re: missing gcc attribute "overwritable" The Real Non Homosexual <cdalten@gmail.com> - 2020-07-03 11:51 -0700
            Re: missing gcc attribute "overwritable" richard@cogsci.ed.ac.uk (Richard Tobin) - 2020-07-03 19:48 +0000
              Re: missing gcc attribute "overwritable" Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-07-03 14:20 -0700
                Re: missing gcc attribute "overwritable" Richard Damon <Richard@Damon-Family.org> - 2020-07-03 20:37 -0400
        Re: missing gcc attribute "overwritable" aotto1968zwei@gmail.com - 2020-07-05 01:34 -0700
          Re: missing gcc attribute "overwritable" Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2020-07-05 09:45 -0400
          Re: missing gcc attribute "overwritable" Manfred <noname@add.invalid> - 2020-07-05 20:23 +0200
          Re: missing gcc attribute "overwritable" James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-07-05 19:09 -0400
            Re: missing gcc attribute "overwritable" gazelle@shell.xmission.com (Kenny McCormack) - 2020-07-05 23:37 +0000
              Re: missing gcc attribute "overwritable" David Brown <david.brown@hesbynett.no> - 2020-07-06 08:27 +0200

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