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Re: trunc

From: John Darrington
Subject: Re: trunc
Date: Mon, 27 Nov 2006 08:50:39 +0800
User-agent: Mutt/1.5.9i

On Sat, Nov 25, 2006 at 06:58:41PM -0800, Ben Pfaff wrote:
     I'd suggest checking for trunc with Autoconf, then providing an
     implementation based on floor if it doesn't exist, i.e. something
     like this:
     #ifndef HAVE_TRUNC
     trunc (double d)
       return d >= 0.0 ? floor (d) : -floor (-d);
     I do something like this for the "round" function.

That's a good idea.  Maybe we should gather these sort of functions
into a common module and put it in libpspp and/or offer it to the
gnulib developers for inclusion there.


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