Steve Lawrence created DAFFODIL-3097:
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Summary: xs:unsignedLong incorrectly converted to Long for
intermediate calculations
Key: DAFFODIL-3097
URL: https://issues.apache.org/jira/browse/DAFFODIL-3097
Project: Daffodil
Issue Type: Task
Components: Back End
Reporter: Steve Lawrence
Fix For: 4.3.0
This schema snippet:
{code:xml}
<element name="foo" type="xs:unsignedLong" dfdl:inputValueCalc="{
xs:unsignedLong(9223372036854775808) + xs:unsignedLong(1)
}" />
{code}
Fails with the following error:
{code}
[error] Schema Definition Error: Cannot convert '9223372036854775808' from
UnsignedLong type to Long (Value '9223372036854775808' is out of range for
type: xs:long).
{code}
This schema fails with the same error:
{code:xml}
<element name="foo" type="xs:integer" dfdl:inputValueCalc="{
xs:integer(xs:unsignedLong(9223372036854775808))}" />
{code}
None of these expressions should require converting the xs:unsignedLong to a
Long, but it seems we do that somewhere. When the unsignedLong value is too
large for a Long (9223372036854775808 is one more than MaxLong) that conversion
fails. We should never convert an unsignedLong to a Long for intermediate
calculations.
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