Message-ID: <37506CEA.7FA8@ns.sympatico.ca>
From: Klaas <klaas AT ns DOT sympatico DOT ca>
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Newsgroups: comp.os.msdos.djgpp
Subject: Re: how to round fp-numbers correctly ?
References: <8710ed13 DOT 2481af58 AT aol DOT com>
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Date: Sat, 29 May 1999 19:40:42 -0300
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

> where min is the lower bound integer number. If you don't have
> bounded numbers, then what you said is right, you need to treat
> positive and negative numbers separately. For example, a macro
> #define ROUND(x) ((x >= 0) ? (int) (x + 0.5) : (int) (x - 0.5))
> should do the trick.
> 

How about:
#define ROUND(x) ((x) + SGN(x)*0.5)