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23 lines
621 B
Plaintext
23 lines
621 B
Plaintext
Function Any2Dec(ByVal otherBaseNumber As String, ByVal base As Integer) As Long
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Dim index As Long
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Dim digits As String
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Dim digitValue As Long
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' check base
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If base < 2 Or base > 36 Then Err.Raise 5
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' get the list of valid digits
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digits = Left("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ", base)
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' convert to decimal
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For index = 1 To Len(otherBaseNumber)
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' get the digit's value
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digitValue = InStr(1, digits, Mid$(otherBaseNumber, index, 1), _
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vbTextCompare) - 1
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' error if invalid digit
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If digitValue < 0 Then Err.Raise 5
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' add to running result
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Any2Dec = Any2Dec * base + digitValue
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Next
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End Function
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