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Re: Geodetic Development Tool

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On 7/31/2019 1:52 AM, Paavo Helde wrote:
> On 31.07.2019 11:18, Chris M. Thomasson wrote:
>> On 7/31/2019 12:36 AM, Paavo Helde wrote:
>>> On 31.07.2019 9:08, Chris M. Thomasson wrote:
>>>> On 7/30/2019 7:32 AM, Fred Killet wrote:
>>>>> Yes, 20000 lines of source code with geodetic functions have their
>>>>> price. However, WINDOWS programmers have the advantage to integrate
>>>>> geodetic functions as a DLL. That is already possible from 500 euros.
>>>>> Fred
>>>>
>>>> shared object files on Linux should work fine.
>>>
>>> It takes some knowledge and experience to prepare a binary C++ .so
>>> which would work on most Linuxes, especially if it is using a lot of
>>> third-party libraries. The default model in Linux is to use the
>>> system-installed C++ runtimes, but there have been ABI-breaking
>>> changes in those runtimes, so one just cannot compile a .so on a
>>> random Linux box and hope it will work everywhere. Third-party
>>> libraries with C++ interfaces will add many complications, one could
>>> either use system-installed ones or package them together with your
>>> own .so, both approaches have serious drawbacks.
>>>
>>> In short, the easiest way to install custom software (not included in
>>> package manager repos) in Linux is to build it directly on the target
>>> box.
>>>
>>>
>>
>> Humm... It would be wise to create the shared object API using C. The
>> guts can be C++, exceptions aside for a moment... but the API would be
>> all in C. A little C++ wrapping up the C shared API would work. Sound a
>> little better? Plugin interface.
> 
> Yes, this is a good approach for some C++ libraries, but requires extra 
> work and may hinder performance. Another good approach is to create 
> header-only libraries, so there is no .so to link to.
> 
> 

Agreed. Sometimes, its hard to beat a pure header based lib. I am quite 
fond of GLM:

https://glm.g-truc.net/0.9.2/api/a00001.html

;^)

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Geodetic Development Tool killet@killetsoft.de - 2019-07-30 01:18 -0700
  Re: Geodetic Development Tool "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2019-07-30 12:44 +0200
    Re: Geodetic Development Tool Öö Tiib <ootiib@hot.ee> - 2019-07-30 05:42 -0700
      Re: Geodetic Development Tool Fred Killet <info_nospam_@killetsoft.de> - 2019-07-30 16:32 +0200
        Re: Geodetic Development Tool "Chris M. Thomasson" <invalid_chris_thomasson_invalid@invalid.com> - 2019-07-30 23:08 -0700
          Re: Geodetic Development Tool Paavo Helde <myfirstname@osa.pri.ee> - 2019-07-31 10:36 +0300
            Re: Geodetic Development Tool "Chris M. Thomasson" <invalid_chris_thomasson_invalid@invalid.com> - 2019-07-31 01:18 -0700
              Re: Geodetic Development Tool Paavo Helde <myfirstname@osa.pri.ee> - 2019-07-31 11:52 +0300
                Re: Geodetic Development Tool "Chris M. Thomasson" <invalid_chris_thomasson_invalid@invalid.com> - 2019-07-31 02:14 -0700
            Re: Geodetic Development Tool Manfred <noname@add.invalid> - 2019-07-31 14:44 +0200
            Re: Geodetic Development Tool Soviet_Mario <SovietMario@CCCP.MIR> - 2019-08-02 13:59 +0200
          Re: Geodetic Development Tool Öö Tiib <ootiib@hot.ee> - 2019-07-31 00:36 -0700
          Re: Geodetic Development Tool Bonita Montero <Bonita.Montero@gmail.com> - 2019-07-31 10:15 +0200
            Re: Geodetic Development Tool "Chris M. Thomasson" <invalid_chris_thomasson_invalid@invalid.com> - 2019-07-31 01:22 -0700
      Re: Geodetic Development Tool Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-07-30 18:11 +0000

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