d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
287d742923
freebsd-dev/lib
History
David Schultz 8862f666ad Fix some problems with asinf(), acosf(), atanf(), and atan2f(): 
- Adjust several constants for float precision. Some thresholds
  that were appropriate for double precision were never changed
  when these routines were converted to float precision. This
  has an impact on performance but not accuracy. (Submitted by bde.)

- Reduce the degrees of the polynomials used. A smaller degree
  suffices for float precision.

- In asinf(), use double arithmetic in part of the calculation to
  avoid a corner case and some complicated arithmetic involving a
  division and some buggy constants. This improves performance and
  accuracy.

Max error (ulps):
         asinf  acosf  atanf
before   0.925  0.782  0.852
after    0.743  0.804  0.852

As bde points out, it's cheaper for asin*() and acos*() to use
polynomials instead of rational functions, but that's a task for
another day.
2008-08-01 01:24:25 +00:00
..
bind One more glue update for BIND 9.4.2 2007-12-02 22:21:30 +00:00
csu Enable GCC stack protection (aka Propolice) for userland: 2008-06-25 21:33:28 +00:00
libalias -Don't pass down the entire pkt to ProtoAliasIn, ProtoAliasOut, FragmentIn 2008-03-12 11:58:29 +00:00
libarchive Garbage collect a variable which is assigned a value once but otherwise 2008-07-10 09:50:55 +00:00
libautofs Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libbegemot Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libbluetooth Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libbsm Install getaudit_addr(2) and setaudit_addr(2) links to getaudit(2) and 2007-10-19 10:37:34 +00:00
libbsnmp - Bump share library version which were missed in last bump 2007-06-18 18:47:54 +00:00
libbz2 Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libc Convert popen()'s `pidlist' to a SLIST, for consistency. 2008-07-29 16:29:59 +00:00
libc_r Call the fcntl compatiblity wrapper from the thread library fcntl wrappers 2008-05-30 14:47:42 +00:00
libcalendar
libcam 2nd and final commit that moves us to CAM_NEW_TRAN_CODE 2006-11-02 00:54:38 +00:00
libcom_err
libcompat Turn sgtty into a binary-only compatibility interface. 2008-06-14 10:42:18 +00:00
libcrypt Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libdevinfo Markup fixes. 2006-09-17 21:27:35 +00:00
libdevstat The devstat(3) manpage claims that only <devstat.h> is needed as a 2008-01-31 16:55:12 +00:00
libdisk Add MIPS support to libdisk 2008-05-04 22:24:40 +00:00
libdwarf Add a BSD licensed DWARF library for use by the DTrace clients. 2008-05-22 02:14:23 +00:00
libedit Merge NetBSD changes, among them: 2007-06-10 19:06:09 +00:00
libelf Relax the strict type check because gcc as distributed doesn't create 2008-05-23 07:35:36 +00:00
libexpat Update the lib/expat tree for the new v2.0.1 expat import. The bsdxml.h 2008-05-08 14:01:42 +00:00
libfetch Fix one-byte buffer overflow: NUL gets written to the buffer, but isn't 2008-04-15 23:29:51 +00:00
libftpio Don't set the _file member of the FILE when opening a FTP connection. 2008-05-08 20:05:30 +00:00
libgeom - Simplify the procedure of retrieving XML-data from the kernel. 2008-07-08 17:34:50 +00:00
libgpib Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libgssapi Fix conflicts after heimdal-1.1 import and add build infrastructure. Import 2008-05-07 13:53:12 +00:00
libipsec Commit IPv6 support for FAST_IPSEC to the tree. 2007-07-01 12:08:08 +00:00
libipx Remove California Regent's clause 3, per letter 2007-01-09 01:02:06 +00:00
libkiconv Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libkse Call the fcntl compatiblity wrapper from the thread library fcntl wrappers 2008-05-30 14:47:42 +00:00
libkvm First cut at doing the kvm file needed for mips. 2008-07-23 07:24:55 +00:00
libmagic Update for the 'file' 4.23 import. 2008-01-13 20:37:19 +00:00
libmd Use unsigned comparisons. Prior to this commit, SHA1_Update and 2007-05-14 05:00:37 +00:00
libmemstat Make pointer argument to kread_string() const since the kernel structure 2007-05-21 18:16:04 +00:00
libmilter Switch libmilter from select(2) to poll(2) so milters are not limited 2008-02-17 05:14:47 +00:00
libmp Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libncp Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libnetgraph Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libngatm Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libopie Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libpam Add new heimdal-1.1 library. 2008-05-15 15:28:18 +00:00
libpcap Update for libpcap 0.9.8 import 2007-10-16 02:10:44 +00:00
libpmc - Document Pentium and Pentium MMX events. 2008-03-14 06:22:03 +00:00
libproc Add the Makefile for the process library which was missed in the previous 2008-05-22 02:10:14 +00:00
libradius Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
librpcsvc set WARNS to 1: with WARNS=2 an aliasing error in a file generated by 2008-02-05 20:03:45 +00:00
librt Enable symbol versioning by default. Use WITHOUT_SYMVER to disable it. 2007-05-13 14:12:40 +00:00
libsbuf
libsdp Add mandatory "security description" SDP parameter to the PANU profile 2008-03-19 00:06:30 +00:00
libsm New files in sendmail 8.14.1 2007-04-09 01:45:30 +00:00
libsmb Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libsmdb
libsmutil
libstand Enable GCC stack protection (aka Propolice) for userland: 2008-06-25 21:33:28 +00:00
libtacplus Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libtelnet Stop enforcing dependencies between MK_* options at Makefile level. 2006-07-31 13:29:36 +00:00
libthr In function pthread_condattr_getpshared, store result correctly. 2008-08-01 01:21:49 +00:00
libthread_db Add thr_pread_{int,long,ptr} and thr_pwrite_{int,long,ptr} to 2008-07-31 20:25:52 +00:00
libufs Add a berase() function which uses ioctl(DIOCGDELETE) to erase a slab 2007-12-16 18:02:37 +00:00
libugidfw Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libusbhid Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libutil Add support for a new login capability, cpumask which allows login 2008-07-25 19:58:14 +00:00
libvgl Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libwrap Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
liby Remove California Regent's clause 3, per letter 2007-01-09 01:02:06 +00:00
libypclnt Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libz Resolve conflicts. 2006-03-23 14:09:21 +00:00
msun Fix some problems with asinf(), acosf(), atanf(), and atan2f(): 2008-08-01 01:24:25 +00:00
ncurses - Update for ncurses 5.6-20080509 2008-05-09 02:28:52 +00:00
Makefile Remove netatm from HEAD as it is not MPSAFE and relies on the now removed 2008-05-25 22:11:40 +00:00
Makefile.inc Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00