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Re: operation of 'round' function


From: Eli Zaretskii
Subject: Re: operation of 'round' function
Date: Fri, 08 Feb 2002 15:12:41 +0200

> From: Francesco Potorti` <pot@gnu.org>
> Newsgroups: gnu.emacs.bug
> Date: 08 Feb 2002 13:43:27 +0100
> 
>    The Emacs primitive simply calls `rint', which works according to the
>    current rounding mode.
> 
> Are we sure that this is a good solution?  Generally speaking, an Elisp
> program should behave the same on any platform.

I don't know, but it could be argued that `round' should be no more
portable than C's `rint'.  The C standards, both ISO and Posix,
clearly say that the result depends on the rounding mode.



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