Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!ncar!tank!oddjob!gargoyle!att!whuts!homxb!hropus!ki4pv!cdis-1!tanner
From: tanner@cdis-1.uucp (Dr. T. Andrews)
Newsgroups: comp.lang.c
Subject: Re: "Numerical Recipes in C" is nonportable code
Summary: that is a \fBmost\fP curious "floating exception"
Message-ID: <7076@cdis-1.uucp>
Date: 8 Sep 88 13:41:00 GMT
References: <664@lindy.Stanford.EDU> <6758@megaron.arizona.edu> <718@gtx.com> <13402@mimsy.UUCP>
Organization: CompuData Inc., DeLand
Lines: 17

In article <13402@mimsy.UUCP>, chris@mimsy.UUCP (Chris Torek) writes:
) 	main()
) 	{
) 		char *p;
) 
) 		p = (char *)0x7fffffff;
) 		asm("bispsw	$0x20");	/* PSL_IV */
) 		p++;
) 	}
) This program, when run, aborts with a `floating exception' (SIGFPE).

I may not be the first one to cast a stone at this example, but have
you considered the possibility that a floating point exception is
manifestly the \fBwrong\fP thing to do in your example?  There is no
floating-point math in there.  Complain to your vendor.
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