Sub in Module not accessible

[FFMan]

I had a sub in the main program that i moved to a newly added module.

When i compile I get an error as the compiler thinks my sub program name referenced in the main module is a variable not a sub in the new module. The compiler doesn't appear to 'see' the newly moved sub.

Do i need to declare subs in the main program some how ?

Where have I gone wrong ?

thanks

 

[thedesolatesoul]

Can you post the code of the moved sub?
Looks most likely like a typo, when you moved it, the name might have changed.

 

[FFMan]

this is the sub

'An NMEA checksum is calculated as the XOR of bytes between (but not including) the dollar sign and asterisk.
Sub NMEA_Checksum(sentence As String) As String
Dim s As String
Dim i As Int
Dim sum(1) As Byte

'Log("NMEA passed:" & sentence)
s = sentence.Trim

sum(0)=0
For i = 0 To s.Length-1
sum(0) = Bit.Xor(sum(0),Asc(s.SubString2(i,i+1)))
Next

'debug.print "Chk=";CstrHex(sum)
Return conv.HexFromBytes(sum)
End Sub

the name is right - i cut and paste. was zbasic code once upon a time

 

[thedesolatesoul]

Did you add the modulename before the subname?
For e.g. if the modulename is 'a' you should do:

result=a.NMEA_Checksum("hello")

when you call it.

 

[FFMan]

thanks thats fixed it

i couldn't fund this documented anywhere - where should i look ? i have the helpfinder and the beginners guide.

 

[thedesolatesoul]

I dont really know the exact location
I read the beginners guide, the getting started/tutorials section of the forum and some of help viewer but I increasingly rely on the forum and forum search. I try to read every post from Erel because they are very accurate.

http://www.b4x.com/forum/basic4andr...rials/7541-static-code-modules.html#post42971

 

[nfordbscndrd]

thanks thats fixed it

i couldn't fund this documented anywhere - where should i look ? i have the helpfinder and the beginners guide.

Check out the Documentation Wiki which says:

the module name must be added when calling a sub, such as a line in Main calling a sub (Sub1) in Mod1: Mod1.Sub1.

In addition to the information in the Wiki, it has links to the Module tutorials.