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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: conversions between fixed-point types
Date: Wed, 23 Sep 2009 15:28:49 -0700
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Date: 2009-09-23T15:28:49-07:00
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Dirk Herrmann wrote:
> 
> FpB'Image(FpB'(-1.5))                evaluates to -1.2
> FpB'Image(FpB(FpA'(-1.5)))           evaluates to -1.2
> FpB'Image(MakeBFromA(FpA'(-1.5)))    evaluates to -1.6

There is no need to qualify these literals.

> Thus, even avoiding all floating point operations, the difference is 
> still there.  It appears to be a question of whether the conversion from 
> FpA to FpB or the conversion from Float to FpB is computed statically or 
> dynamically.

I presume you mean Fpa rather than Float.

Your last sentence may be what's happening. I don't know if that would be 
allowed or a compiler error. Any language lawyers want to comment?

-- 
Jeff Carter
"Go and boil your bottoms."
Monty Python & the Holy Grail
01