Message-ID: <199904091123.NAA03290@blueberry.kubism.ku.dk>
Date: 1999-04-09T11:23:01Z
From: Peter Dalgaard
Subject: a strange logical bug (PR#162)
ripley@stats.ox.ac.uk writes:
> On RH 5.2
>
> The isnan() function returns a non-zero value if value is
> "not-a-number" (NaN), and 0 otherwise.
>
> and that non-zero is not defined!
Uh-oh...
> and isnan is used in Arith.c for ISNAN and that is used in coerce.c
> for do_isna (why?)
is.na(0/0) # Splus compat.
> So ISNAN needs to be redefined on Linux at least. Using ISNA not ISNAN
> solves this one for me.
But...(see above)
A better fix is
#define ISNAN(x) (isnan(x)!=0)
Next problem: Messing with Arith.h and make'ing doesn't do anything
(dependency missing, obviously)
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907
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