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Date: Wed, 8 Jul 2020 14:16:04 -0700 (PDT)
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Subject: Re: Fixed vs float and precision and conversions
From: Shark8 <onewingedshark@gmail.com>
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Xref: reader01.eternal-september.org comp.lang.ada:59405
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On Wednesday, July 8, 2020 at 12:08:16 PM UTC-6, bj=C3=B6rn lundin wrote:
>=20
> hmm no. valuies in global_odds_table are fixed_type
>    Global_Odds_Table : array(Tics_Type'Range) of Fixed_Type :=3D (

Except you don't *have*, in the things you are getting [from JSON], fixed-p=
oint.
You are getting IEEE-float, as a consequence of JSON's definition.
In order to find the proper values for a non-'Round-able you have to compar=
e Floatingpoints to the acceptable-values in the table: for simplicity this=
 means using the table-values as floats. [Conceptually they are universal-n=
umbers.]

By putting the global-table in the convert function, as an array of floats,=
 I got rid of the need for Tics_Type, as well as simplifying the translatio=
n (if-needed).

Take a look at the conversion function you provided, and the one I provided=
; there are two big differences: mine will return a valid Odds value, and t=
hat value will be that value from the table which is the closest value to t=
he input-float.