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From: matthias_k <nospam@digitalraid.com>
Newsgroups: comp.lang.ada
Subject: Re: Help with fixed type decimal numbers
Date: Mon, 13 Sep 2004 14:23:08 +0200
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Date: 2004-09-13T14:23:08+02:00
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David C. Hoos, Sr. wrote:
> It means exactly what the Ada95 Reference Manual
> says it means, viz.:
> 
>> From section 3.5.9:
> 
> 
> 7 In a fixed_point_definition or digits_constraint,
> the expressions given after the reserved words delta and digits shall be 
> static; their values
> shall be positive.
> 8 The set of values of a fixed point type comprise
> the integral multiples of a number called the small of the type. For a 
> type defined by an
> ordinary_fixed_point_definition (an ordinary fixed
> point type), the small may be specified by an
> attribute_definition_clause (see 13.3); if so
> specified, it shall be no greater than the delta
> of the type. If not specified, the small of an
> ordinary fixed point type is an implementation-
> defined power of two less than or equal to the
> delta.
> 
> 9 For a decimal fixed point type, the small equals
> the delta; the delta shall be a power of 10. If a 
> real_range_specification is given, both bounds of
> the range shall be in the range
> -(10**digits-1)*delta .. +(10**digits-1)*delta.
> 
> In oiher words, the delta fixes the value of the
> least-significant bit of the binary representation,
> and thus restricts the set of values for the type
> to integer multiples of the delta, up to the
> limits established by the digits specification for
> the type.
> 
> ----- Original Message ----- From: "matthias_k" <nospam@digitalraid.com>
> Newsgroups: comp.lang.ada
> To: <comp.lang.ada@ada-france.org>
> Sent: September 13, 2004 6:10 AM
> Subject: Help with fixed type decimal numbers
> 
> 
>> Hi all,
>>
>> what exactly does the 'delta' keyword imply when defining a fixed 
>> decimal type?
>>
>> thanks in advance,
>> Matthias
>> _______________________________________________
>> comp.lang.ada mailing list
>> comp.lang.ada@ada-france.org
>> http://www.ada-france.org/mailman/listinfo/comp.lang.ada
>>
>>
> 
> 

Nevermind, found it myself.