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Date: | Thu, 11 Jan 2001 22:06:41 +0200 |
From: | "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il> |
Sender: | halo1 AT zahav DOT net DOT il |
To: | Morten Welinder <terra AT diku DOT dk> |
Message-Id: | <2110-Thu11Jan2001220640+0200-eliz@is.elta.co.il> |
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CC: | djgpp-workers AT delorie DOT com |
In-reply-to: | <20010111180416.8986.qmail@tyr.diku.dk> (message from Morten |
Welinder on 11 Jan 2001 18:04:16 -0000) | |
Subject: | Re: Weird results of log( -1.0 ) with libm.a and without libm.a (fwd) |
References: | <Pine DOT SUN DOT 3 DOT 91 DOT 1010111191955 DOT 20014B-100000 AT is> <20010111180416 DOT 8986 DOT qmail AT tyr DOT diku DOT dk> |
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> Date: 11 Jan 2001 18:04:16 -0000 > From: Morten Welinder <terra AT diku DOT dk> > > >From Solaris man page (a generally very good source): > > If x is NaN, NaN is returned. > > If x is less than 0, -HUGE_VAL or NaN is returned and errno > is set to EDOM. > > If x is 0, -HUGE_VAL is returned and errno may be set to > ERANGE. Thanks, Morten. I suspected this is how most other Unix systems behave. libm is very religious in following these conventions.
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