Followers 0

# Decimal to any base

## 8 posts in this topic

Posted

With this UDF, you can convert a decimal number to any base (binary, oct, hex, base32, base64) and you can even create your own base.

```#include <Array.au3>

\$base64 = "A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,a,b,c,d,e,f,g,h,i,"& _
"j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,0,1,2,3,4,5,6,7,8,9,+,/"
\$base32 =  "A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,2,3,4,5,6,7"
\$base16 =  "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
\$base8 = "0,1,2,3,4,5,6,7"
\$base2 =  "0,1"

\$number = InputBox ( "Decimal Converter", "Enter a decimal number", "", "", -1, 100, -1, -1 )
\$bin = _Base ( \$number, \$base2 )
\$oct = _Base ( \$number, \$base8 )
\$hex = _Base ( \$number, \$base16 )
\$32 = _Base ( \$number, \$base32 )
\$64 = _Base ( \$number, \$base64 )

\$text = "Binary: "&\$bin&" -> Dec: "& _Dec(\$bin, \$base2)&@CRLF&@CRLF
\$text &= "Oct: "&\$oct&" -> Dec: "& _Dec(\$oct, \$base8)&@CRLF&@CRLF
\$text &= "Hex: "&\$hex&" -> Dec: "& _Dec(\$hex, \$base16)&@CRLF&@CRLF
\$text &= "Base 32: "&\$32&" -> Dec: "& _Dec(\$32, \$base32)&@CRLF&@CRLF
\$text &= "Base 64: "&\$64&" -> Dec: "& _Dec(\$64, \$base64)

Msgbox ( 0, "Decimal Converter", \$text )

;===============================================================================
;
; Function Name:   _Base
; Description::    Convert a decimal number to any base
; Parameter(s):    \$iDecNumber - The decimal number to convert
;                  \$sChar - Characters separated by commas
; Requirement(s):  <Array.au3>
; Return Value(s): The converted number in the specified base.
; Author(s):       Joke758
; Note(s):         \$sChar should look like: "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
;
;===============================================================================

Func _Base(\$iDecNumber, \$sChar)
Local \$aBase = StringSplit ( \$sChar, "," )
Local \$iBase = \$aBase[0]
Local \$iLen = Int ( Log(\$iDecNumber) / Log(\$iBase) )+1
Dim \$iUnit[\$iLen+1]
Local \$iReturn
Local \$iTemp = \$iDecNumber

If \$aBase[0] <> \$iBase Then
SetError (1)
Return -1
EndIf

If \$iDecNumber = 0 Then Return \$aBase[1]

For \$i = 1 to \$iLen
For \$i2 = 1 to \$i-1
\$iTemp = \$iTemp/\$iBase
Next
\$iUnit[\$i] = \$aBase[Mod ( \$iTemp, \$iBase )+1]
\$iTemp = \$iDecNumber
Next

For \$i = 1 to \$iLen
\$iReturn = \$iUnit[\$i] & \$iReturn
Next

Return \$iReturn
EndFunc

;===============================================================================
;
; Function Name:   _Dec
; Description::    Convert a x number in a decimal number
; Parameter(s):    \$iNumber - The number to convert
;                  \$sChar - Characters separated by commas
; Requirement(s):  <Array.au3>
; Return Value(s): A decimal number
; Author(s):       Joke758
; Note(s):         \$sChar should look like: "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
;
;===============================================================================

Func _Dec ( \$iNumber, \$sChar )
Local \$iReturn
Local \$aBase = StringSplit ( \$sChar, "," )
Local \$iBase = \$aBase[0]
\$iLen = StringLen ( \$iNumber )

For \$i = 0 to \$iLen-1
\$iTemp = StringMid ( \$iNumber, \$iLen-\$i, 1 )
\$iReturn = \$iReturn + (\$iBase^\$i)*(_ArraySearch ( \$aBase, \$iTemp )-1)
Next

Return \$iReturn
EndFunc```

##### Share on other sites

Posted

Cool! I was looking for a dec to bin, bin to dec function! Thank you.

##### Share on other sites

Posted (edited)

```Func _Dec ( \$iNumber, \$sChar )
Local \$iReturn
Local \$aBase = StringSplit ( \$sChar, "," )
Local \$iBase = \$aBase[0]
\$iLen = StringLen ( \$iNumber )

For \$i = 0 to \$iLen-1
\$iTemp = StringMid ( \$iNumber, \$iLen-\$i, 1 )
;	\$iReturn = \$iReturn + (\$iBase^\$i)*(_ArraySearch ( \$aBase, \$iTemp )-1) ;      <<< change this line<<<
\$iReturn = \$iReturn + (\$iBase^\$i)*(_ArraySearch ( \$aBase, \$iTemp,0,0,1 )-1) ; <<< to this
Next

Return \$iReturn
EndFunc```
make it case sensitive,

Base64 or the like wont work,

thanks for this code, I was coding my own when I found yours =))

( to make it easier to find here are some strings: BaseTo Base2 Dec2Base DecToBase )

Edited by argumentum

##### Share on other sites

Posted

Joke758

I liked the idea of being able to enter any base number system as a string. So I added Base 12 and Base 60.

Base 60 being used in degrees, minutes, seconds or hours, minutes, seconds.

Then had to modify your _Dec() function for conversion of base 60 back to decimal number system.(base 10), because of the three characters per number used in the base 60 string.

I then realized it did not matter which characters were used in the base string. As long as there is equal number of characters between the commas. And, the character used in the base string also appears in the StringRegExp() function in the modified _Dec() function to be able to convert it back to base 10.

Thus, the code base string manifested.

Malkey.

```#include <Array.au3>

\$base64 = "A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,a,b,c,d,e,f,g,h,i," & _
"j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,0,1,2,3,4,5,6,7,8,9,+,/"
;Sexagesimal
\$base60 = "00:,01:,02:,03:,04:,05:,06:,07:,08:,09:,10:,11:,12:,13:,14:,15:,16:,17:,18:,19:," & _
"20:,21:,22:,23:,24:,25:,26:,27:,28:,29:,30:,31:,32:,33:,34:,35:,36:,37:,38:,39:," & _
"40:,41:,42:,43:,44:,45:,46:,47:,48:,49:,50:,51:,52:,53:,54:,55:,56:,57:,58:,59:"
\$base32 = "A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,2,3,4,5,6,7"
\$base16 = "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F"
;Code
\$base13 = "As,/y,qu,ro,Am,1D,Wo,0H,HO,2A,AM,0x,A2"
;Duodecimal system or dozenal
\$base12 = "0,1,2,3,4,5,6,7,8,9,A,B"
\$base8 = "0,1,2,3,4,5,6,7"
\$base2 = "0,1"

\$number = InputBox ( "Decimal Converter", "Enter a decimal number", "", "", -1, 100, -1, -1 )
\$bin = _Base(\$number, \$base2)
\$oct = _Base(\$number, \$base8)
\$Duod = _Base(\$number, \$base12)
\$Code = _Base(\$number, \$base13)
\$hex = _Base(\$number, \$base16)
\$32 = _Base(\$number, \$base32)
\$Sexa1 = _Base(\$number, \$base60)
\$64 = _Base(\$number, \$base64)

\$text = "Binary       : " & \$bin & " -> Dec: " & _Dec(\$bin, \$base2) & @CRLF & @CRLF
\$text &= "Oct         : " & \$oct & " -> Dec: " & _Dec(\$oct, \$base8) & @CRLF & @CRLF
\$text &= "Duodecimal  : " & \$Duod & " -> Dec: " & _Dec(\$Duod, \$base12) & @CRLF & @CRLF
\$text &= "Code Base13 : " & \$Code & " -> Dec: " & _Dec(\$Code, \$base13) & @CRLF & @CRLF
\$text &= "Hex         : " & \$hex & " -> Dec: " & _Dec(\$hex, \$base16) & @CRLF & @CRLF
\$text &= "Base 32     : " & \$32 & " -> Dec: " & _Dec(\$32, \$base32) & @CRLF & @CRLF
\$text &= "Sexagesimal : " & StringTrimRight(\$Sexa1, 1) & " -> Dec: " & _Dec(\$Sexa1, \$base60) & @CRLF & @CRLF
\$text &= "Base 64     : " & \$64 & " -> Dec: " & _Dec(\$64, \$base64)

MsgBox(0, "Decimal Converter", \$text)

;===============================================================================
;
; Function Name:   _Base
; Description::    Convert a decimal number to any base
; Parameter(s):    \$iDecNumber - The decimal number to convert
;                  \$sChar - Characters separated by commas
; Requirement(s):  <Array.au3>
; Return Value(s): The converted number in the specified base.
; Author(s):       Joke758
; Note(s):         \$sChar should look like: "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F" 0r
;                  "00:,01:,02:,03:,04:, ...". The same number of characters between comas.
;
;===============================================================================

Func _Base(\$iDecNumber, \$sChar)
Local \$aBase = StringSplit(\$sChar, ",")
Local \$iBase = \$aBase[0]

Local \$iLen = Int(Log(\$iDecNumber) / Log(\$iBase)) + 1

Dim \$iUnit[\$iLen + 1]
Local \$iReturn
Local \$iTemp = \$iDecNumber

If \$aBase[0] <> \$iBase Then
SetError(1)
Return -1
EndIf

If \$iDecNumber = 0 Then Return \$aBase[1]

For \$i = 1 To \$iLen
For \$i2 = 1 To \$i - 1
\$iTemp = \$iTemp / \$iBase
Next
\$iUnit[\$i] = \$aBase[Mod(\$iTemp, \$iBase) + 1]
\$iTemp = \$iDecNumber
Next

For \$i = 1 To \$iLen
\$iReturn = \$iUnit[\$i] & \$iReturn
Next

Return \$iReturn
EndFunc   ;==>_Base

;===============================================================================
;
; Function Name:   _Dec
; Description::    Convert a x number in a decimal number
; Parameter(s):    \$iNumber - The number to convert
;                  \$sChar - Characters separated by commas
; Requirement(s):  <Array.au3>
; Return Value(s): A decimal number
; Author(s):       Joke758
; Modified :       Malkey
; Note(s):         \$sChar should look like: "0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F" 0r
;                  "00:,01:,02:,03:,04:, ...". The same number of characters between comas.
;
;===============================================================================

Func _Dec(\$iNumber, \$sChar)
Local \$iReturn
Local \$aBase = StringSplit(\$sChar, ",")
Local \$iBase = \$aBase[0]
Local \$aTemp = StringRegExp(\$iNumber, "[a-zA-Z0-9:+/]{" & StringLen(\$aBase[1]) & "}", 3)
For \$i = 0 To UBound(\$aTemp) - 1
\$iReturn += (\$iBase ^ \$i) * (_ArraySearch(\$aBase, \$aTemp[UBound(\$aTemp) - 1 - \$i], 0, 0, 1) - 1)
Next

Return \$iReturn
EndFunc   ;==>_Dec```

##### Share on other sites

Posted (edited)

well, i made this and other things far more optimized and advanced in my _Primes.au3 UDF. check it out.

cheers j.

Edited by jennico

##### Share on other sites

Posted

well, i made this and other things far more optimized and advanced in my _Primes.au3 UDF. check it out.

cheers j.

Nice jenico, really nice... thank you for this code

Posted

Nice code

##### Share on other sites

Posted (edited)

Not to revive an old post, but I am having some trouble in my code, I am able to convert the text to my base104, however I am unsure how to convert it back, it seems to become corrupted when I do so, perhaps I am doing something wrong?

The code to convert:

```Global \$base104 = "H¦,He,Li,Be,B¦,C¦,N¦,O¦,F¦,Ne,Na,Mg,Al,Si,P¦,S¦,Cl,Ar,K¦,Ca,Sc,Ti,Cr,Mn,Fe,Co,Ni,Cu,Zn,Ga,Ge,As,Se,Br,Kr,Rb,Sr,Y¦,Zr,Nb,Mo,Tc,Ru,Rh,Pd,Ag,Cd,In,Sn,Sb,Te,I¦,Xe,Cs,Ba,La,Ce,Pr,Nd,Pm,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Yb,Lu,Hf,Ta,W¦,Re,Os,Ir,Pt,Au,Hg,Tl,Pb,Bi,Po,At,Rn,Fr,Ra,Ac,Th,Pa,U¦,Np,Pu,Am,Cm,Bk,Cf,Es,Fm,Md,No,Bh,Rg,Fl"
for \$i=1 to \$text[0]
\$number &= _Base(AscW(\$text[\$i]), \$base104)
Next```

The code to convert it back:

```\$string = StringSplit(\$string, "")
\$text = ""
for \$i=1 to \$string[0] step 2
\$text &= _dec(\$string[\$i]&\$string[\$i+1], \$base104)
Next```

(I do not know what to do with the numbers returned from _dec)

Edited by nullschritt

## Create an account or sign in to comment

You need to be a member in order to leave a comment

## Create an account

Sign up for a new account in our community. It's easy!

Register a new account