Myujth

I am in the following situation: I have a function, that takes a ParamArray of type variant and generates a string from the keywords given in its ParamArray in a special manner by execution mergeToString.

Function function1(ParamArray var() As Variant) As String
 For i = LBound(var) To UBound(var)
 function1 = mergeToString(function1, CStr(var(i))
 Next i
End Function

In another subroutine, I have an array of strings obtained from the Split Function in VBA and want to use it as an input for function1

Sub displayFCTN1()
 Dim arr() As String
 arr() = Split("foo|bar", "|")
 'and here I ran out of ideas...
 Debug.Print function1(**???**)
End Sub

The two lines

function1(**???**)
function1("foo","bar")

should be equivalent the first somehow using arr().

In Matlab this is relatively easy - I know, VBA is not Matlab, still this might help as an extended description of my problem:
you could most likely do it by using the colon operator in Matlab

function1(arr(:))

since then the fields of the array arr() count as "free" parameters.

Is there something comparable to this in VBA? I tried ReDim already, that somehow didn't do the job (as far as I tried).

Thank you for your help!

A workaround as mentioned in the comments above

Sub displayFCTN1()
 Dim arr() As String
 arr() = Split("foo|bar", "|")
 Myhelper arr
 End Sub

 Sub Myhelper(arr)
 Select Case UBound(arr)
 Case 0: Debug.Print function1(arr(0))
 Case 1: Debug.Print function1(arr(0), arr(1))
 Case 2: Debug.Print function1(arr(0), arr(1), arr(2))
 Case 3: Debug.Print function1(arr(0), arr(1), arr(2), arr(3))
 Case 4: Debug.Print function1(arr(0), arr(1), arr(2), arr(3), arr(4))
 'etc up to 29.
 Case Else
 End Select
 End Sub

This does require a change to function1 code, but should still work with orginal.

Sub Test()

 Debug.Print function1("foo", "bar")

 Dim arr() As String
 arr = Split("foo|bar", "|")
 Debug.Print function1(arr)

End Sub

Function function1(ParamArray var() As Variant) As String
 Dim i As Long

 If UBound(var) = 0 Then
 For i = LBound(var(0)) To UBound(var(0))
 'function1 = Join(var(0), "|")
 function1 = mergeToString(function1, CStr(var(0)(i)))
 Next i
 Else
 'Original code.
 For i = LBound(var) To UBound(var)
 'function1 = Join(var, "|")
 function1 = mergeToString(function1, CStr(var(i)))
 Next i
 End If
End Function

You need to test, whether the first item of array is array:

Sub FFF()
 MsgBox Func1("foo", "bar")
 MsgBox Func1(Split("foo|bar", "|"))
End Sub

Function Func1$(ParamArray var() As Variant)
 Dim s$, x%, args
 args = IIf(IsArray(var(0)), var(0), var)
 '//Do something
 For x = 0 To UBound(args)
 s = s & args(x) & "|"
 Next
 Func1 = Left$(s, Len(s) - 1)
End Function