Update. cvs/libc-ud-971214

1997-12-14 21:33  Ulrich Drepper  <drepper@cygnus.com>

	* version.h (VERSION): Bump to 2.0.91.

	* db2/makedb.c (process_input): Fix typo in message.
	* sunrpc/rpcinfo.c (pmapdump): Unify messages.

	* elf/dynamic-link.h: Pretty print.

	* elf/rtld.c: Allow multiple preloading of a shared object.

	* include/limits.h: Prevent multiple inclusion.

	* malloc/Makefile (headers): Add mcheck.h.
	(distribute): Remove it here.
	* malloc/mcheck.h: Pretty print.
	* malloc/mtrace.c (mallenv): Make `const'.
	* malloc/mtrace.pl: Don't print table head for memory leaks if there
	are none.
	* manual/memory.texi: Update descriptor of malloc hooks.

	* posix/Makefile (routines): Add waitid.
	* posix/sys/types.h [__USE_SVID || __USE_POSIX]: Define id_t based
	on __id_t.
	* posix/sys/wait.h: Define idtype_t type.
	Add prototype for waitid.
	* signal/signal.h: Move definition of sigval_t to <bits/siginfo.h>.
	* sysdeps/generic/waitid.c: Stub for waitid.
	* sysdeps/generic/bits/siginfo.h: Define sigval_t.  Arrange to work
	the __need_siginfo_t defined.
	* sysdeps/unix/sysv/linux/bits/siginfo: Likewise.
	* sysdeps/generic/bits/types.h: Define __id_t.
	Correct definition of __FDMASK.
	* sysdeps/unix/sysv/linux/alpha/bits/types.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/types.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h: Likewise.

	* sysdeps/posix/waitid.c: New file.
	Provided by Zack Weinberg.

	* rt/aio_misc.c: Rename __aio_free_req to __aio_free_request.

	* sysdeps/alpha/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
	Add missing parameters.

	* sysdeps/generic/dl-sysdep.c: Don't call __libc_init_secure.
	* sysdeps/generic/enbl-secure.c: Don't define __libc_uid.
	* sysdeps/unix/sysv/linux/init-first.c: Define __libc_uid.
	* sysdeps/unix/sysv/linux/sigqueue.c: Make sure __libc_uid is
	initialized.

	* sysdeps/i386/dl-machine.h: Little cleanup.

	* sysdeps/i386/fpu/bits/mathinline.h: Use __signbit* inline functions.
	(__finite): Mark function as const.
	Add inline code for __ieee754_atan2.

	* sysdeps/libm-ieee754/s_cacoshf.c: Add alternate implementation
	(but don't use it now).
	* sysdeps/libm-ieee754/s_catan.c: Use __ieee754_atan2 instead of
	__atan.
	* sysdeps/libm-ieee754/s_catanf.c: Likewise.
	* sysdeps/libm-ieee754/s_catanl.c: Likewise.
	* sysdeps/libm-ieee754/s_catanh.c: Likewise.  Correct sign of
	real part.
	* sysdeps/libm-ieee754/s_catanhf.c: Likewise.
	* sysdeps/libm-ieee754/s_catanhl.c: Likewise.
	* sysdeps/libm-ieee754/s_clog10.c: Use factor to correct
	__ieee754_atan2 to base 10.
	* sysdeps/libm-ieee754/s_clog10f.c: Likewise.
	* sysdeps/libm-ieee754/s_clog10l.c: Likewise.

	* sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h: Define as
	old_kernel_sigaction.

	* sysdeps/unix/sysv/linux/net/if_slip.h: Pretty print.

	* wctype/Makefile (routines): Add wctype_l.
	* wctype/wctype.h: Add declaration of __wctype_l.
	* wctype/wctype_l.c: New file.

1997-12-10 00:38  Ulrich Drepper  <drepper@cygnus.com>

	* locale/C-ctype.c: Correct data for isw* functions.
	* locale/programs/ld-ctype.c: Write 32bit char classes in correct
	byte order.
	* wctype/test_wctype.c: Add test for isw* functions.
	* wctype/wctype.c: Return value with expected byte order.

	* sysdeps/generic/_G_config.h: Define _G_HAVE_IO_FILE_OPEN.
	* sysdeps/unix/sysv/linux/_G_config.h: Likewise.

1 files changed, 4 insertions, 4 deletions

diff --git a/sysdeps/libm-ieee754/s_catanh.c b/sysdeps/libm-ieee754/s_catanh.c
index 6c4b10e3db..0cb852a069 100644
--- a/sysdeps/libm-ieee754/s_catanh.c
+++ b/sysdeps/libm-ieee754/s_catanh.c
@@ -62,17 +62,17 @@ __catanh (__complex__ double x)
 
       i2 = __imag__ x * __imag__ x;
 
-      num = 1.0 - __real__ x;
+      num = 1.0 + __real__ x;
       num = i2 + num * num;
 
-      den = 1.0 + __real__ x;
+      den = 1.0 - __real__ x;
       den = i2 + den * den;
 
-      __real__ res = 0.25 * __ieee754_log (num / den);
+      __real__ res = 0.25 * (__ieee754_log (num) - __ieee754_log (den));
 
       den = 1 - __real__ x * __real__ x - i2;
 
-      __imag__ res = 0.5 * __atan ((2.0 * __imag__ x) / den);
+      __imag__ res = 0.5 * __ieee754_atan2 (2.0 * __imag__ x, den);
     }
 
   return res;