RE: [xsl] numerical inconsistencies doing dec to hex conv.

[Jarno.Elovirta@xxxxxxxxx]

Hi,

> I am using the below template to convert a decimal number 
> into a hex number. It seems to work correctly apart from 
> when I want to calculate the hex equivelent of the decimal 
> number -  4294967295. This number is of particular 
> significance as in Hex this should be FFFFFFFF (a 32 bit, 
> bitmask; i am using xml to describe registers in h/w).
> The template outputs FFFFFFF0 abnd I dont know why.
> 
> The template seems to output the incorrect value for 
> 1099511627775, which is the decimal representation of 
> FFFFFFFFFF in hex.
> 
> The recursive template is as follows:
> 
> 
> <xsl:variable name="hexDigits" select="'0123456789ABCDEF'" />
>   <xsl:template name="toHex">
>     <xsl:param name="decimalNumber" />
>     <xsl:if test="$decimalNumber >= 16">
>       <xsl:call-template name="toHex">
>         <xsl:with-param name="decimalNumber" 
> select="floor($decimalNumber div 16)" />
>       </xsl:call-template>
>     </xsl:if>
>     <xsl:value-of select="substring($hexDigits, 
> ($decimalNumber mod 16) + 1, 1)" />
> </xsl:template>
> 
> Can anybody figure out why this is happening or have an 
> equivelent template that can calculate the conversion 
> correctly?

Works for me. Which XSLT processor are you using?

Cheers,

Jarno - Hocico: Untold Blasphemies v.3 (accessory mix)

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list