[fpc-pascal] The new Delphi 2010 RTTI

[Cees Binkhorst]

On 01/10/2011 12:09 PM, michael.vancanneyt at wisa.be wrote:
> 
> 
> On Mon, 10 Jan 2011, alexvins at mail.ru wrote:
> 
>> 10.01.2011 13:50, michael.vancanneyt at wisa.be пишет:
>>>
>>>
>>> On Mon, 10 Jan 2011, alexvins at mail.ru wrote:
>>>
>>>> 10.01.2011 13:05, michael.vancanneyt at wisa.be пишет:
>>>>>
>>>>>
>>>>> On Mon, 10 Jan 2011, Vincent Snijders wrote:
>>>>>
>>>>>> 2011/1/10 alexvins at mail.ru <alexvins at mail.ru>:
>>>>>>>>
>>>>>>> But I want packages to be binary portable between OS (on target
>>>>>>> processor
>>>>>>> architecture)
>>>>>>
>>>>>>
>>>>>> I don't think that is feasible, unless you don't use any OS features.
>>>>>
>>>>> Exactly.
>>>>>
>>>>> Even just because FPC supports multiple CPUs; You can't use an i386
>>>>> package on SPARC or ARM.
>>>>>
>>>>> So you'll always have to recompile your package for all platforms
>>>>> that you want to support.
>>>>>
>>>>>
>>>> But only for all processors, not for all existing combinations of
>>>> processor and OS.
>>>
>>> You should re-read Florian's email, and *fully* understand the
>>> consequences.
>>>
>>> Your proposal requires that we emulate all OSes on all other OSes,
>>> because
>>> the basic package (rtl or whatever it will be called) always depends
>>> on the OS. There is no way around this.
>>>
>> My solution, in short,  is that packages should have OS independent
>> interface to RTL built into executable visible to packages as RTL
>> built as c package (with is a bridge to real RTL).
> 
> I understood that. Assuming you can make this interface (which I don't
> believe), your solution is still not realistic:
> 
> And how will you make a package that uses a os-specific function OS
> independent ? (for instance, a package with a control that uses a WinAPI
> call.)
> 
> So a package with the LCL is by definition impossible.
> 
> Like I said, your proposal requires that we emulate all OSes on all
> other OSes.

Looking from the top (the user), is that not what is done now?

All applications have the same user-interface for different OS's. So by
definition what is in-between is part application and part
'normalisation' of the OS.

Regards / Cees (who has no practical experience with
fpc-pascal/Lazarus/Freepascal i.e. a lurker)


> 
> Michael.
> 
> 
> 
> _______________________________________________
> fpc-pascal maillist  -  fpc-pascal at lists.freepascal.org
> http://lists.freepascal.org/mailman/listinfo/fpc-pascal