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Date: Thu, 2 Mar 1995 20:10:05 -0800
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From: mcclure@cs.unm.edu
Reply-To: mcclure@cs.unm.edu
To: freebsd-bugs
Subject: misc/229: acos() core dump
In-Reply-To: Your message of Thu, 2 Mar 95 21:05:24 MST
	<9503030405.AA18921@chaco.cs.unm.edu>
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>Number:         229
>Category:       misc
>Synopsis:       acos() core dump
>Confidential:   yes
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs (FreeBSD bugs mailing list)
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Mar  2 20:10:02 1995
>Originator:     User &
>Organization:
>Release:        FreeBSD 2.0-RELEASE i386
>Environment:

FreeBSD 2.0 from Walnut creek FreeBSD 2.0 "January 1994" release.

>Description:

calling the acos() function in the math library with illegal values
( say -2.0 ) causes a floating exception core dump.

/usr/lib info: 
# ls -l libm.*
-r--r--r--  1 bin  bin  123388 Nov 22 05:14 libm.a
-r--r--r--  1 bin  bin  165021 Nov 22 05:14 libm.so.2.0
# cksum libm.*
3164276670 123388 libm.a
3263430048 165021 libm.so.2.0

>How-To-Repeat:

Try running this an linking with -lm:

#include<stdio.h>
#include<math.h>

main()
{
  acos(-2.0);
}

>Fix:

Unknown.


>Audit-Trail:
>Unformatted: