Error/Bug adding floating point numbers 2006-08-31 - By Daniel Thommes
Hello,
I think to have found a bug in Xalan-J 2.7.0 when adding floating point numbers:
My XML-File:
<?xml version="1.0" encoding="UTF-8"?>
<values>
<x>2.33</x>
<y>2.001</y>
</values>
My XSLT-File:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:template match="/values">
<results>
<sum>
<xsl:value-of select="x + y"/>
</sum>
<diff>
<xsl:value-of select="x - y"/>
</diff>
</results>
</xsl:template>
</xsl:stylesheet>
The result procuced by Xalan:
<?xml version="1.0" encoding="UTF-8"?>
<results>
<sum>4.3309999999999995</sum>
<diff>0.3290000000000002</diff>
</results>
I know, that the error is very small, but because in a later step I will round
those numbers, it is likely that there will happen bigger errors thinking of
worst case.
Any suggestions how to fix this problem? Do you think, I should open an issue
for this?
Greetings
Daniel
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