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[xsl] Implicit casting from double to float

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Hi all,
   When I ran the following XSLT 2.0 code, with Saxon 9.x

<xsl:variable name="num1" select="xs:double('1e4')" as="xs:double" />
<xsl:variable name="num2" select="$num1" as="xs:float" />
<xsl:value-of select="$num2" />

I get the output,

10000

The XSLT 2.0 processor has no problem doing this operation. No warning
is produced either.

But a similar operation in Java is a serious compile time error,

Please consider this Java fragment,

float num = (double)1e4;
System.out.println(num);

This Java fragment doesn't compile, and following error is generated,

test.java:3: possible loss of precision
found   : double
required: float

float num = (double)1e4;
                 ^

Could somebody please explain this behavior with the XSLT 2.0 system.


-- 
Regards,
Mukul Gandhi

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