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Should be GUI_APP_MAIN or CONSOLE_APP_MAIN ignored in non-main package? [message #55627]

Wed, 25 November 2020 12:29

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Sometimes I am using main package as non-main (usually as temporary duck-tape solution, but still useful sometimes). In those situations, I usually add

#ifdef flagMAIN
GUI_APP_MAIN
{
	MyApp().Run();
}
#endif

around MAIN. Which now made me think: This could be done by the library too. Should I go there? I suspect that there might be some problems down the road...

Mirek

[Updated on: Wed, 25 November 2020 12:29]

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Re: Should be GUI_APP_MAIN or CONSOLE_APP_MAIN ignored in non-main package? [message #55643 is a reply to message #55627]

Thu, 26 November 2020 19:13

mr_ped
Messages: 825
Registered: November 2005
Location: Czech Republic - Praha

Experienced Contributor

I'm doing that when using unit testing, which has its own main, running the test runner. (by #ifndef .. #endif preprocessor block, IIRC).

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Re: Should be GUI_APP_MAIN or CONSOLE_APP_MAIN ignored in non-main package? [message #55647 is a reply to message #55643]

Fri, 27 November 2020 08:45

koldo
Messages: 3356
Registered: August 2008

Senior Veteran

mr_ped wrote on Thu, 26 November 2020 19:13

I'm doing that when using unit testing, which has its own main, running the test runner. (by #ifndef .. #endif preprocessor block, IIRC).

I do just the same.

Best regards
Iñaki

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Re: Should be GUI_APP_MAIN or CONSOLE_APP_MAIN ignored in non-main package? [message #55649 is a reply to message #55647]

Fri, 27 November 2020 11:48

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Yeah, thanks that you have the same issue:)

Does not quite reply my question:

Should it be excluded by the U++, without the need for #ifdef? Do you see any catch?

Mirek

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Re: Should be GUI_APP_MAIN or CONSOLE_APP_MAIN ignored in non-main package? [message #55659 is a reply to message #55627]

Sat, 28 November 2020 18:02

mr_ped
Messages: 825
Registered: November 2005
Location: Czech Republic - Praha

Experienced Contributor

It sounds useful, but I'm not sure how to implement it (in most robust way to avoid any pitfalls in the future). (but also has to be reasonable simple to figure out, as most of the time I will probably forget about it, and do the #ifdef thing manually).

Does the build system has some unique flag for the top package?

Can you imagine project with top package not containing the main, but reusing one from the dependencies? Maybe something like project for plugin for particular app, having the full app as dependency? So in such case the main is needed.

I'm not sure, if this has simple-enough and obvious-enough solution to make it worth your time. Smile

If you have particular implementation on mind already...

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Re: Should be GUI_APP_MAIN or CONSOLE_APP_MAIN ignored in non-main package? [message #55663 is a reply to message #55659]

Sat, 28 November 2020 20:59

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

[quote title=mr_ped wrote on Sat, 28 November 2020 18:02}
Can you imagine project with top package not containing the main, but reusing one from the dependencies? Maybe something like project for plugin for particular app, having the full app as dependency? So in such case the main is needed.
[/quote]

Thanks, that is exactly the kind of counter-argument I was looking for! Means NO, not a good idea... Smile

Mirek

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