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Re: Optional Decimal Logic
Rolf Andersson / Pantor Engineering
29 Jun 2009 12:19AM ET Mike,
example 1 is correct but example 2 is unclear.
The way you indicate an absent (from an application perspective) optional decimal field is to use a NULL exponent.
(Please refer to section 10.6.2)
/Rolf
> All,
>
> I'm have a bit of an issue understanding the correct logic concerning
> Optional Decimals with inidividual operators. Could someone reply to the
> correctness of the 2 cases below?
>
> Thanks, Mike
>
>
> 1) Mandatory Decimal with Individual operators: Presence: Exponent ->
> Mandatory, Mantissa -> Mandatory Operator: Exponent -> Default(0),
> Mantissa -> Delta Logic:
>
> Decode_u32( Exponent ); // Bit Required Decode_u32( Mantissa );
> // No Bit Required
>
> 2) Optional Decimal with Individual operators: Presence: Exponent ->
> Optional, Mantissa -> Mandatory (IFF Exponent is present in stream)
>
> ExponentPresentInStream = Decode_u32( exponent )// Bit Required
> for Exponent if( ExponentPresentInSteam ) Decode_u32( Mantissa
> ); // No Bit Required
Re: Optional Decimal Logic
Rolf Andersson / Pantor Engineering 29 Jun 2009 12:19AM ET
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