From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Purpose of y1() in standard library?
Date: Tue, 31 Aug 1999 09:45:49 +0300
Organization: NetVision Israel	
Lines: 20
Message-ID: <Pine.SUN.3.91.990831094035.9517L-100000@is>
References: <199908260851 DOT LAA09357 AT ankara DOT Foo DOT COM> <7qcujs$7a1$1 AT solomon DOT cs DOT rose-hulman DOT edu>
NNTP-Posting-Host: is.elta.co.il
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Trace: news.netvision.net.il 936081879 9056 199.203.121.2 (31 Aug 1999 06:44:39 GMT)
X-Complaints-To: abuse AT netvision DOT net DOT il
NNTP-Posting-Date: 31 Aug 1999 06:44:39 GMT
X-Sender: eliz AT is
In-Reply-To: <7qcujs$7a1$1@solomon.cs.rose-hulman.edu>
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com
X-Mailing-List: djgpp AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk


On Sun, 29 Aug 1999, Damian Yerrick wrote:

> > The documentation for the standard library shows no use or purpose for
> > this function for those interfacing with it (C:\>info libc y1).   
> > Perhaps y1() can be re-named or be made part of the module in which 
> > it may be called by only one or two calling functions, and therefore 
> > be declared static.
>
> Someone screwed up.

But it's not the library distribution that is ``screwed up''.

y1 is a widely-used mathematical function (one of the Bessel functions, 
to be exact).  It is part of libm.a that is distributed with DJGPP, and 
its docs is in libm.info. 

The right solution, as someone already pointed out, is to not use global 
variables called y1; or, if you must, compile with -ansi switch which 
will exclude the y1 prototype from being seen by the compiler.