Sorry, but I need a clarification on this.  

Spec says ""When unparsing a binary number (packed decimal or twos-complement) and excess precision is supplied in the Infoset no rounding occurs. It is a processing error.""

Technically, precision is the number of digits, and trailing zeros are significant even after a decimal point.

So is it a processing error if I supply an infoset decimal value of 123.990 and a BDVP of 2?  While this can be serialized to an integer, the original decimal has excess precision.

Similarly for an infoset decimal value of 12300.0 and a BDVP of -2. This can be serialized to an integer, but the original decimal has excess precision.

What this amounts to is whether we give a processing error a) whenever the infoset supplies excess precision, or b) only when the excess precision results in a decimal that can't be converted into an integer.
 
Regards
 
Steve Hanson
Architect, IBM DFDL
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848



From:        Steve Hanson/UK/IBM
To:        DFDL-WG <dfdl-wg@ogf.org>
Date:        09/12/2014 17:45
Subject:        Re: Binary decimal virtual point - unparsing behaviour

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DFDL WG agreed that this is a processing error. http://redmine.ogf.org/issues/249

Regards
 
Steve Hanson
Architect, IBM DFDL
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848




From:        Steve Hanson/UK/IBM
To:        DFDL-WG <dfdl-wg@ogf.org>
Date:        05/12/2014 11:05
Subject:        Binary decimal virtual point - unparsing behaviour

---

I am not finding anywhere in the DFDL spec that says explicitly what happens during unparsing when a decimal value is given to the unparser, and its rep is binary, and the BDVP is not sufficient to remove the decimal point from the value. This is surely a processing error, because the spec states in section 13.7.1 "When unparsing a binary number (packed decimal or twos-complement) and excess precision is supplied in the Infoset no rounding occurs. It is a processing error."  

Regards
 
Steve Hanson
Architect, IBM DFDL
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848
Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 741598.
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU


Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 741598.
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 741598.
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU