Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!cmcl2!kramden.acf.nyu.edu!brnstnd
From: brnstnd@kramden.acf.nyu.edu (Dan Bernstein)
Newsgroups: comp.lang.c
Subject: Re: <None>
Message-ID: <3589:Oct2320:56:1590@kramden.acf.nyu.edu>
Date: 23 Oct 90 20:56:15 GMT
References: <1990Oct20.215718.15519@athena.mit.edu> <4035@goanna.cs.rmit.oz.au>
Organization: IR
Lines: 16

In article <4035@goanna.cs.rmit.oz.au> ok@goanna.cs.rmit.oz.au (Richard A. O'Keefe) writes:
  [ on controlling round-off errors ]
> 	double degrees(int Degrees, int Minutes, int Seconds)
> 		return ((Degrees*60.0 + Minutes)*60.0 + Seconds)/3600.0;

Some machines (e.g., Convex) have a 64-bit integer, the ``long long''
type. It's better to do the base conversion in that than in 48-bit
floating point.

> It's best to read them as
>     integers.

It's best to stick to integers entirely, if there's no worry of
overflow.

---Dan