How to use one (sub)routine or function in several programs?

[dutch8]

I'm new in Libertybasic, but have some experience with other programminglanguages.
?What is the Libertybasicstatement for

#include "programmadeel.bas"

so that I have to change this code one time only, and that all programs that use this code, all pickup the new version of programmadeel.bas?
Editing one time only, and (re)compile all the programs that use programmadeel.bas

Thanks in advance.

[tsh73]

Hello dutch8

basically the answer is -
No, you can't do that in native LB 4.x
(this is something in next LB 5 what is still in the works, though
libertybasiccom.proboards.com/thread/2017/liberty-basic-5-use-library
)

but there is
a freeware editor by Alyce Watson
alycesrestaurant.com/workshop.htm
that supports many additional things, among them
'include filename.bas

(have read somewhere that it could not be *very first* line of a program, though)

[dutch8]

Thank you, moderator Tsh!

I think I will write my first Libertysourcecode in Liberty version 5. I suspect that is possibly the best way. Or do you think that I have to start in v4.5.1 because the new features in v5 are not stable enough?

My next steps will be:
1. install Liberty v5,
2. parameterizing the subroutine or function, to let it communicate with my main programs, via input- and givebackparamaters.

:-)

[tsh73]

only thing I say would be - it depends on your needs.
LB 4.x does not having include statement did not prevented people from using it, so far.

[Brandon Parker]

dutch8,
I created a tool using Liberty BASIC itself that allows for "Include" files and much more. It is more of a preprocessor for LB 4.x and includes/allows for some nice features IMO. You can find the forum for it at the link below.

LB Import Architect


{:0)

Brandon Parker

[dutch8]

Thank you, Tsh, and thank you, Brandon.

[dutch8]

Brandon: I checked your forum. Can you give me the url of your item about the precompiler on your forum please?

Tsh: What is wrong or missing in my code? I get the error:
"CompileError - SUB not defined, call TestSub01 invoer kwadraat"
using the mainprogram source:


library "e:\bron\Liberty\Incl\TestSub01.bas", #lib



input invoer

call TestSub01 invoer kwadraat

print kwadraat

end


and the subroutine source:


sub TestSub01 ibegin byref uterug



uterug=ibegin ^ 2

end sub

[tsh73]

I didn't played with this myself
but this thread
libertybasiccom.proboards.com/thread/2017/liberty-basic-5-use-library
has second line

Make sure you only use functions in your library for now. Subroutines will not working. I think that it comes later.

Have a look.

[dutch8]

Thank you, Tsh!