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Three easy functions.

Posted on 1999-12-07
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Last Modified: 2010-05-02
Im a beginner. I need to know how to create three funtions that will do this:
First Function:
Tells you if the number inputed is odd
Second Function:
Tells you the positoin of the alpahbet that the letter is inputed (i.e if the letter D is inputed then itll return 4)
Third Function:
Swap two variables using BelVal (what ever that is) Return boolean

Thanks for help!!!
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Question by:cdc_sickle
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trillo earned 200 total points
ID: 2263496
Option Explicit

Private Sub Form_Click()
    'Test
    Dim a As Integer, b As Integer
    a = 3
    b = 4
    Me.Print IsOdd(3)
    Me.Print AlfaPos("a")
    Me.Print "A="; a; "B="; b;
    Call Swap(a, b)
    Me.Print "Swapped: "; "A="; a; "B="; b;
End Sub


Private Function IsOdd(inum As Integer) As Boolean
    IsOdd = Not (inum Mod 2)
End Function

Private Function AlfaPos(iLetter As String) As Integer
    Dim alfa As String
    alfa = "abcdefghijklmnopqrstuvwxyz"
    AlfaPos = InStr(alfa, iLetter)
End Function

Private Function Swap(ByRef a As Integer, ByRef b As Integer) As Boolean
    Dim tmp As Integer
    tmp = a
    a = b
    b = tmp
    Swap = True
End Function


Is this what you want?
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Expert Comment

by:trillo
ID: 2263499
Actually, in my answer.... the swap function does not use ByVal, because it's impossible to swap two numbers, when passing them as ByVal arguments and returning a Boolean variable. They should be passes ByRef.
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Author Comment

by:cdc_sickle
ID: 2263520
Thank you so much!!!
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