kern/133583: commit references a PR

dfilter service dfilter at FreeBSD.ORG
Fri Dec 3 07:10:11 UTC 2010

The following reply was made to PR kern/133583; it has been noted by GNATS.

From: dfilter at FreeBSD.ORG (dfilter service)
To: bug-followup at
Subject: Re: kern/133583: commit references a PR
Date: Fri,  3 Dec 2010 07:01:14 +0000 (UTC)

 Author: das
 Date: Fri Dec  3 07:01:07 2010
 New Revision: 216142
   Explain some of the reasons that fpsetprec() is unlikely to work as
   one might expect.  (These functions have already been deprecated for
   many years.)
   PR:		133583
 Modified: head/share/man/man3/fpgetround.3
 --- head/share/man/man3/fpgetround.3	Fri Dec  3 04:39:48 2010	(r216141)
 +++ head/share/man/man3/fpgetround.3	Fri Dec  3 07:01:07 2010	(r216142)
 @@ -32,7 +32,7 @@
  .\"     @(#)fpgetround.3	1.0 (Berkeley) 9/23/93
  .\" $FreeBSD$
 -.Dd August 23, 1993
 +.Dd December 3, 2010
  .Sh NAME
 @@ -164,6 +164,10 @@ and
  .Fn fpsetprec
  functions provide functionality unavailable on many platforms.
  At present, they are implemented only on the i386 and amd64 platforms.
 +Changing precision isn't a supported feature:
 +it may be ineffective when code is compiled to take advantage of SSE,
 +and many library functions and compiler optimizations depend upon the
 +default precision for correct behavior.
  .Xr fenv 3 ,
  .Xr isnan 3
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