Multiple returnvalues of a function

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Increase

7

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Joined: 21st Feb 2017

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Posted: 15th Apr 2017 20:40

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I don't know how to access multiple return values of a function.

Say the function is :

+ Code Snippet

		
function test()
	
	a = 20
	b = 40
	c$ = "ff"
	endfunction a,b,c$

then

+ Code Snippet

a,b,c$ = test() doesn't work

Is there a syntax which makes this possible ?

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PartTimeCoder

AGK Tool Maker

9

Years of Service

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Joined: 9th Mar 2015

Location: London UK

Posted: 15th Apr 2017 20:57

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only if, thats one of the reasons I like Lua

you can return a user type, its a lot more work though

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Type someType
	a
	b
	c as string
EndType

Function test()
	ret as someType
    ret.a = 20
    ret.b = 40
    ret.c = "ff"
EndFunction ret

lRet as someType
lRet=test()

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nz0

AGK Developer

17

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Joined: 13th Jun 2007

Location: Cheshire,UK

Posted: 15th Apr 2017 21:05

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You could tokenise your return value.

Make the return value a tokenised string like "5,6,21,blah,201"

Your calling code can chop this up using the built-in token commands and take it from there.

Not elegant, but simple tho.

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Phaelax

DBPro Master

21

Years of Service

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Joined: 16th Apr 2003

Location: Metropia

Posted: 15th Apr 2017 21:20

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I've never known any language to return multiple values in such a way. What type of function are you needing this for? There's probably a better way to structure it.

Your other option is to create a UDT and return that.

+ Code Snippet

type mytype
	a as integer
	b as integer
	c as string
endtype


n as mytype
n = test()

a  = n.a
b  = n.b
c$ = n.c


function test()
	x as myType
	x.a = 20
	x.b = 40
	x.c = "ff"
endfunction x