Date: Sun, 5 May 1996 13:35:21 -0400
From: dj (DJ Delorie)
Message-Id: <199605051735.NAA19113@delorie.com>
To: ao950 AT FreeNet DOT Carleton DOT CA
CC: djgpp AT delorie DOT com
In-reply-to: <4me6om$5md@freenet-news.carleton.ca> (ao950@FreeNet.Carleton.CA)
Subject: Re: libm.a/linker *BUG* with test program


> This may be a stupid question but: why is it that when the math library is
> not on the command line, it not only links and resolves the calls to pow
> and ldexp, but it *works* too???

The C library has primitive versions of the ANSI-defined math
functions, like ldexp and pow.  The math library (-lm) has more
complex versions that adhere to the IEEE spec better.  When you add
-lm, you get a different version of the function.