Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!sun-barr!ames!pacbell!att!oucsace!bchurch
From: bchurch@oucsace.cs.OHIOU.EDU (Bob Church)
Newsgroups: comp.sys.apple
Subject: Re: hyperC K&R standard?
Summary: Floating point problems
Message-ID: <1133@oucsace.cs.OHIOU.EDU>
Date: 18 Feb 90 18:39:48 GMT
References: <3452@plains.UUCP>
Distribution: usa
Organization: Ohio University CS Dept., Athens
Lines: 36

> 
> The following program is taken verbatium from THE C PROGRAMMING
> LANGUAGE, by Brian W. Kernigan and Dennis M. Ritchie.

> main()
> {
>     int lower, upper, step;
>     double fahr, celsius;
>  
>     while (fahr <= upper) {
>          celsius = (5.0/9.0) * (fahr-32.0);
>          printf("%4.0f   %6.1f\n", fahr, celsius);
> }
	[various lines of the program deleted] 
> Can anyone tell me why this will not compile under PRODOS
> HyperC?
> 
> 
> Ames Grisanti

I don't use Hyperc but it's a pretty safe guess that your problem lies
in using floating point integer. Doubles are fp and if a compiler/linker
supports them at all you generally have to use special libraries etc. 
For the sake of experimentation change the doubles to int and change the 
numbers containing decimal places to integers. The results won't be correct
but this will help narrow down the problem.


********************************************************************
*                                                                  *
*   bob church  bchurch@oucsace.cs.ohiou.edu                       *
*                                                                  *
*  If economics isn't an "exact" science why do computers crash    *
*  so much more often than the stock market?                       *
*                                          bc                      *
********************************************************************