Path: chuka.playstation.co.uk!news
From: Philip Gooch <philg@easynet.co.uk>
Newsgroups: scee.yaroze.beginners
Subject: Re: Clever bit manipulation routines?
Date: Fri, 24 Jul 1998 09:47:32 +0100
Organization: PlayStation Net Yaroze (SCEE)
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Nick Slaven wrote:

> how about the limitRange macro (tho its not bit manipulation)
> like this
>
> limitRange(gPlayer.turningAngle,-45,45);
>
> its defined in libps.h & is coded as follows.
>
> #define limitRange(x, l, h)     ((x)=((x)<(l)?(l):(x)>(h)?(h):(x)))
>
> The A=B?C:D; construct you find here, (if you're familiar with it
> ignore the rest) takes the argument in B and if it is nonzero (ie true)
> sticks the value of C in A, if B is zero (ie false) the value of D is
> placed in A. B can be a single variable or any logical expression (like
> (gPlayer.turningAngle<-45) for instance)
>
> cheers
>
> Nick (S)

  That'll do nicely! I should have spotted that myself. Cheers.

Phil