Re: ratioanl number type

[Gautier <Gautier.deMontmollin@maths.unine.ch>]

> Are there any Ada95 examples in books or on the web that implement the
> exact rational number data type with overloading of all appropriate
> arithmetic operations and conversion to and from other number types, all
> in Ada95 without anything relating to the platform it will run on? It
> goes without saying that it is too difficult to predict the number of
> digits that the numerator and denominator need to have, so, available
> memory should be the only limit to their size.

A thing to do is to combine a generic code to obtain the fraction
field of an (euclidean) ring, with multi-precision integers,
so you can choose the two component independently.

All ingredients are there

  http://lglwww.epfl.ch/Team/MW/mw_components.html

You can also take my generic code (frac) in mathpaqs.zip

  http://members.xoom.com/gdemont/gsoft.htm

and use one of the multi-precision packs from there

  http://members.xoom.com/gnatlist/

NB: no bug-free warranty in any I think ... ;-)

HTH

-- 
Gautier