delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/2008/06/15/10:45:42

X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f
Message-ID: <48552670.F969F5DD@yahoo.com>
Date: Sun, 15 Jun 2008 10:25:52 -0400
From: CBFalconer <cbfalconer AT yahoo DOT com>
X-Mailer: Mozilla 4.75 [en] (Win98; U)
X-Accept-Language: en
MIME-Version: 1.0
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Define of PI in math.h
References: <4854FC47 DOT 7080009 AT iki DOT fi>
X-Complaints-To: abuse AT teranews DOT com
Organization: www.TeraNews.com
Lines: 17
NNTP-Posting-Date: Sun, 15 Jun 2008 10:42:30 -0400
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Andris Pavenis wrote:
> 
> Is there any special reason why DJGPP math.h defines macro PI?
> 
> One must have macro M_PI according to C standard AFAIK. Having
> also PI breaks compilation of at least one package (I tried gpstk)

I believe those (PI and M_PI) are only required for POSIX.  For
standard C (use -ansi -pedantic) neither should be defined.

-- 
 [mail]: Chuck F (cbfalconer at maineline dot net) 
 [page]: <http://cbfalconer.home.att.net>
            Try the download section.


** Posted from http://www.teranews.com **

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019