>Number:         22503
>Category:       port-amd64
>Synopsis:       modf(3) returns wrong value on amd64
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Aug 16 15:52:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     NAKAMURA Usaku
>Release:        NetBSD 1.6R
>Organization:
>Environment:
System: NetBSD jupitris 1.6R NetBSD 1.6R (GENERIC) #0: Fri May 9 12:01:14 CEST 2003 fvdl@thingy:/scratch/obj/current/sys/arch/amd64/compile.amd64/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
	On amd64, modf(3) returns integer part instead of fractional part.
>How-To-Repeat:
	#include <math.h>
	#include <stdio.h>
	main()
	{
		double f, d;
		f = modf(2.5, &d);
		printf("%f %f\n", d, f);
		/* should print "2.0 0.5", but print "2.0 2.0" */
	}
>Fix:
	I think /usr/src/lib/libc/arch/x86_64/gen/modf.S is wrong.
>Release-Note:
>Audit-Trail:
>Unformatted: