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Michael Kerrisk 5be56312b0 cacosh.3, casinh.3, catan.3, catanh.3: SEE ALSO: Add reference to inverse function 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:49 +02:00
Michael Kerrisk 587977c40b casin.3: SEE ALSO: s/csin/ccos/ 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:49 +02:00
Michael Kerrisk f54fb0fa66 ccos.3, ccosh.3, csin.3, csinh.3, ctan.3, ctanh.3: SEE ALSO Add reference to "arc" inverse function 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:49 +02:00
Michael Kerrisk 09a15e3d9e carg.3: Add "complex" to NAME line 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:49 +02:00
Michael Kerrisk 8fa05874cc cacos.3: Add example program 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:49 +02:00
Michael Kerrisk 849ef4a8ed catanh.3: Add example program 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:49 +02:00
Michael Kerrisk c05ed63add catan.3: Add example program 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:49 +02:00
Michael Kerrisk 8b57a223ab cacosh.3: Add example program 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:49 +02:00
Michael Kerrisk 4c3fa19d23 cacos.3, cacosh.3, catan.3, catanh.3: Fix formula describing function 
The man pages for cacos(), cacosh(), catan(), catanh()
contain incorrect formulae describing the functions.

As reported by Richard B. Kreckel:

cacos, cacosf, cacosl:
    The formula given in the man page
      cacos(z) = -i clog(z + csqrt(z * z - 1))
    gives wrong results in second and fourth quadrant of
    complex plain.
    The formula
      cacos(z) = -i clog(z + I*csqrt(1 - z * z))
    gives correct results.

catan, catanf, catanl:
    The formula given in the man page
      catan(z) = 1 / 2i clog((1 + iz) / (1 - iz))
    gives wrong results on the negative imaginary axis beginning
    at -I (along one of the two branch cuts). Besides, the formula
    is written in an ambiguous way.
    The formula
      catan(z) = (clog(1 + iz) - clog(1 - iz)) / 2i
    gives correct results.

cacosh, cacoshf, cacoshl:
    The formula given in the man page
      cacosh(z) = (0.5) * clog((1 + z) / (1 - z))
    gives wrong results everywhere in the complex plain.
    (The formula seems to be copied from the one for catanh,
    where it is sometimes correct.)
    The formula
      cacosh(z) = 2 * clog(csqrt((z + 1)/2) + csqrt((z - 1)/2))
    gives correct results.

catanh, catanhf, catanhl:
    The formula given in the man page
      catanh(z) = 0.5 * clog((1 + z) / (1 - z))
    gives wrong results on the positive real axis beginning at 1
    (along one of the two branch cuts).
    The formula
      catanh(z) = 0.5 * (clog(1 + z) - clog(1 - z))
    gives correct results.

I've also checked casin, casinf, casinl, casinh, casinhf, and
casinhl and the formulae given there
      casin(z) = -i clog(iz + csqrt(1 - z * z))
      casinh(z) = clog(z + csqrt(z * z + 1))
are actually correct.

Reported-by: Richard B. Kreckel <kreckel@ginac.de>
Reviewed-by: Andries Brouwer <Andries.Brouwer@cwi.nl>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:49 +02:00
Michael Kerrisk 3c5faf1171 crypt.3: Fix header file and feature test macro requirements for crypt_r() 
Reported-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:48 +02:00
Regid Ichira 20479b6639 fflush.3: Fix wording error 
See http://bugs.debian.org/cgi-bin/bugreport.cgi?614021

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:48 +02:00
Michael Kerrisk 4c4d76cd30 memcmp.3: Clarify that comparison interprets bytes as "unsigned char" 
Reported-by: Sebastian Unger <sebunger@gmx.net>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:48 +02:00
Michael Kerrisk c28d4af607 lockf.3: ERRORS: EBADF can also occur for nonwritable file descriptor 
As noted in the DESCRIPTION, the file descriptor must be writable
in order to place a lock.

Reported-by: Mikel Ward <mikel@mikelward.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:48 +02:00
Michael Kerrisk 23b903297e siginterrupt.3: Remove misleading sentence about signal(2) and system call interruption 
Reported-by: Luis Javier Merino <ninjalj@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:48 +02:00
Simon Paillard c3074d7061 fallocate.2, kexec_load.2, poll.2, spu_run.2, atan2.3, cbrt.3, clock_getcpuclockid.3, end.3, frexp.3, getgrouplist.3, getifaddrs.3, matherr.3, modf.3, pow.3, pthread_getattr_np.3, pthread_getcpuclockid.3, sched_getcpu.3, tgamma.3, mouse.4, proc.5, feature_test_macros.7, spufs.7: Global fix: properly escape minus sign 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:48 +02:00
Seonghun Lim c658470df6 hsearch.3: Update ERRORS section 
EINVAL can occur for hdestroy_r().
EINVAL can't occur for hcreate().
Other minor fixes.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk 536bc96676 realpath.3: Fix EINVAL error 
Since glibc 2.3, resolved_path can be non-NULL (with the
semantics already documented in the page).

Reported-by: Seonghun Lim <wariua@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Seonghun Lim 7ac6478bdf err.3: Clean up description of error message source 
In the second paragraph of DESCRIPTION section, one of the
sources of error messages is incorrect: the four functions obtain
error message only from errno, and "a code" is just relevant
with errc() and warnc(), which are not present on Linux.
see http://www.unix.com/man-page/freebsd/3/ERR/ .

Then, the third paragraph becomes a duplicate.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk 33b7fff565 termios.3: Added description of SWTCH character 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk 489e425dfa termios.3: Add names of terminal special characters 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk 91e2779f87 termios.3: List terminal special characters in alphabetical order 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk a6639d0979 termios.3: Add a description of STATUS character 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk d8b24e6ee6 termios.3: Use "terminal special characters" consistently throughout page 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk 49438ab7ca wcstombs.3: SEE ALSO: add mbstowcs(3) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk e8df1b4cc8 mbstowcs.3: SEE ALSO: add reference to wcstombs(3) 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk e2b28c5058 strlen.3: SEE ALSO: Add strnlen(3) 
Reported-by: Jon Grant <jg@jguk.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk b8f7487d1d strnlen.3: CONFORMING TO: Note that strnlen() is in POSIX.1-2008 
Reported-by: Jon Grant <jg@jguk.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:47 +02:00
Michael Kerrisk d51529b8d5 termios.3: Add documentation of _POSIX_VDISABLE 
See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627841

Reported-by: Paul Evans <leonerd@leonerd.org.uk>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:46 +02:00
Mike Frysinger cb06e4a50f scandir(3): Add ENOENT/ENOTDIR errors 
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:46 +02:00
Michael Kerrisk 9c60f8f487 strtoul.3: Fix NOTES section constants 
Reported-by: Tolga Dalman <tolga.dalman@googlemail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:46 +02:00
Michael Kerrisk 87e5ebf9ff mprotect.2, malloc.3, signal.7: tstamp 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:46 +02:00
Johannes Laire 88d95555e4 memchr.3: spfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:46 +02:00
Seonghun Lim d9ec0c6aa9 malloc.3: Reorder prototypes in SYNOPSIS 
calloc() comes before realloc() in the other sections,
so should do in SYNOPSIS, too.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:46 +02:00
Seonghun Lim 01038ebae1 perror.3: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:46 +02:00
Seonghun Lim 264951bb5d mkstemp.3: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:45 +02:00
Seonghun Lim e26674fe3f mkstemp.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:45 +02:00
Seonghun Lim 4b9999d6e7 tzset.3: tfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:45 +02:00
Seonghun Lim 4a5d77d4d1 sysconf.3: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:45 +02:00
Seonghun Lim 681445c1da posix_fallocate.3: wfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:45 +02:00
Seonghun Lim a60823e295 cmsg.3: spfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:45 +02:00
Michael Kerrisk 515bca40af pthread_sigqueue.3: Minor wording fix 
Reported-by:  Wei Luosheng <weiluosheng001@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-16 07:00:28 +02:00
Michael Kerrisk 73e670d959 scandir.3: srcfix: Added FIXME 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2011-09-07 18:45:56 +02:00
Denis Barbier 356df505c0 pthread_sigqueue.3: ffix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-12-03 07:42:17 +01:00
Petr Uzel ab1d9621fa usleep.3: usleep() suspends calling thread, not process 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-12-03 07:42:17 +01:00
Michael Kerrisk b0226745db lio_listio.3: srcfix: Remove outdated FIXME 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-11-17 07:06:10 +01:00
Michael Kerrisk 02a7d76f08 pthread_sigqueue.3: srcfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-11-17 06:57:14 +01:00
Michael Kerrisk d56af11baa pthread_sigqueue.3: New page documenting ptrhead_sigqueue() 
pthread_sigqueue() is new in glibc 2.11 (requires a kernel with
rt_tgsigqueinfo(), added in Linux 2.6.31).

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-11-16 07:48:01 +01:00
Michael Kerrisk be78d88194 memcpy.3: Change "should not overlap" to "must not overlap" 
glibc 2.12 changed things so that applications that use memcpy() on
overlapping regions will encounter problems. (The standards have
long said that the behavious is undefined if the memory areas
overlap.)

See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=603144
In reference of http://lwn.net/Articles/414467/
and http://article.gmane.org/gmane.comp.lib.glibc.alpha/15278

Reported-by: Lars Wirzenius <liw@liw.fi>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-11-15 07:10:55 +01:00
Michael Kerrisk 0ef846029d ftok.3: grfix 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-11-12 06:36:30 +01:00
Michael Kerrisk dfac43955e intro.3: Added various pages to SEE ALSO 
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
 2010-11-11 06:55:48 +01:00