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DarkBASIC Professional Discussion / Optional Function Arguments

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Codger
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Posted: 13th Oct 2003 19:17
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Is it possible to create Functions with optional arguments in the same manner as commands?

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CattleRustler
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Posted: 13th Oct 2003 19:57
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I am not sure about that, prolly Ian will chime in with the answer. It would be nice tho-

Private MyFunction(Optional ByVal iNum as Integer)As Double
...yadda...
End Function

-RUST-
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IanM
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Posted: 13th Oct 2003 20:26
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Ding-dong ... that was me chiming in ... no? *sigh* Never mind

It's not possible to have optional arguments - even for commands.

What you can do for TPC commands and functions (not user functions) is redefine the same command several times with different parameters ... maybe sometime Lee will give the same ability to user functions
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Codger
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Posted: 13th Oct 2003 22:49
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Thanks

I guess I can use some form of "null" variable and code inside the function to test if it really needed.

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IanM
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Posted: 13th Oct 2003 23:31 Edited at: 13th Oct 2003 23:31
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Just make the first argument the number of used arguments that follow and fill in the optional values inside the function.

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