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#81842 - 2003-09-09 05:59 PM DecToBin() and BinToDec()
Radimus Radimus Moderator Registered: 2000-01-06 Posts: 5187 Loc: Tampa, FL	we already have the dectohex version... the binary versions would be handy. especially for things like: IP comparisons and subnet matching _________________________ How to ask questions the smart way <-----------> Before you ask
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#81843 - 2003-09-10 09:44 AM Re: DecToBin() and BinToDec()
Richard H. Richard H. Administrator Registered: 2000-01-24 Posts: 4946 Loc: Leatherhead, Surrey, UK	Why limit it to a particular base? code: $iNewValue=BaseConvert($iOldValue,CurrentBase,RequiredBase, Optional WordSize) The Optional WordSize would be required to deal with negative numbers and overflows.
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#81844 - 2003-09-12 11:40 PM Re: DecToBin() and BinToDec()
Sealeopard Sealeopard KiX Master Registered: 2001-04-25 Posts: 11164 Loc: Boston, MA, USA	BaseConvert already exist as a UDF. The UDF is a result of one of the KiXGolf tournaments. See BaseConverter() - for base2-base36 conversions _________________________ There are two types of vessels, submarines and targets.
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#81845 - 2003-09-15 10:37 AM Re: DecToBin() and BinToDec()
Richard H. Richard H. Administrator Registered: 2000-01-24 Posts: 4946 Loc: Leatherhead, Surrey, UK	How well does it handle negative values?
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#81846 - 2003-09-15 02:14 PM Re: DecToBin() and BinToDec()
Kdyer Kdyer KiX Supporter Registered: 2001-01-03 Posts: 6241 Loc: Tigard, OR	quote: How well does it handle negative values? Probably needs to have an ABS() thrown in there before conversion.. Kent _________________________ Utilize these resources: UDFs (Full List) KiXtart FAQ & How to's
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#81847 - 2003-09-15 03:52 PM Re: DecToBin() and BinToDec()
Richard H. Richard H. Administrator Registered: 2000-01-24 Posts: 4946 Loc: Leatherhead, Surrey, UK	Heh, no, that actually ignores the issue What I'm talking about is (for example) binary representation of a negative number. Normally twos-complement - I don't think ones-complement is much used. For example the offset for time zones is sometimes negative, which is stored in the registry as a twos-complement value. That's why in my recommendation there is an optional word size - you need to know how wide the target is to construct a twos-complement value.
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#81848 - 2003-09-15 11:16 PM Re: DecToBin() and BinToDec()
Sealeopard Sealeopard KiX Master Registered: 2001-04-25 Posts: 11164 Loc: Boston, MA, USA	My timezone offsets are stored as positive/negative offsets in minutes. However, I do retirve the offset via WMI. _________________________ There are two types of vessels, submarines and targets.
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