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[Bug 867059] Re: Can not handle largest xs:unsignedLong values

To: zorba-coders@xxxxxxxxxxxxxxxxxxx
From: "Paul J. Lucas" <867059@xxxxxxxxxxxxxxxxxx>
Date: Mon, 10 Oct 2011 23:14:52 -0000
Reply-to: Bug 867059 <867059@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

The tests that were failing (from the W3C test suite) were:

K2-NumericGT-1.xq
K2-NumericGT-2.xq
K2-NumericLT-1.xq
K2-NumericLT-2.xq

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https://bugs.launchpad.net/bugs/867059

Title:
  Can not handle largest xs:unsignedLong values

Status in Zorba - The XQuery Processor:
  New

Bug description:
  When ZORBA_WITH_BIG_INTEGER=OFF, the implementation of Integer used a
  "long long" for the representation. However, Zorba currently uses
  Integer for xs:unsignedLong. This can not handle the largest,
  unsigned, 64-bit value.

  A possible solution would be to templatize Integer with the
  representation type, e.g.:

      typedef IntegerImpl<long long> Integer;
      typedef IntegerImpl<unsigned long long> UnsignedInteger;

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