extern double fabs(); standard conforming?

Article View: comp.std.c

Article #55

#55

From: Robert Lupton the Good
Date: Tue, 03 Nov 1992 00:53

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Is the following Standard Conforming?

#include <math.h>

extern double sin();

int
main()
{
   return(0);
}


I'd have said yes (as the sin() merely says that I don't know about its
arguments), but it is rejected by the IBM c89 compiler%


				Robert
				
---------
% their math.h defines sin as
	#define sin(x) __sin(x)
and the preprocessor complains.
-- 

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Robert Lupton                                           rhl@astro.princeton.edu
(609) 683 8252 (Home)					(609) 258 3811 (Work)

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From: rhl@grendel.Princeton.EDU (Robert Lupton the Good)
Newsgroups: comp.std.c
Subject: extern double fabs(); standard conforming?
Message-ID: <1992Nov3.005333.17727@Princeton.EDU>
Date: 3 Nov 92 00:53:33 GMT
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