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1999-10-18 Ulrich Drepper <drepper@cygnus.com> * scripts/config.sub: Update from latest autoconf version. * scripts/config.guess: Likewise. 1999-10-18 Andreas Jaeger <aj@suse.de> * inet/arpa/inet.h: Remove K&R compatibility. * math/fenv.h: Likewise. 1999-10-18 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/kernel_sigaction.h (struct kernel_sigaction): Remove K&R compatibility. * sysdeps/unix/sysv/linux/net/if.h: Likewise. * sysdeps/unix/sysv/linux/sys/acct.h: Likewise. * sysdeps/unix/sysv/linux/sys/fsuid.h: Likewise. * sysdeps/unix/sysv/linux/sys/io.h: Likewise. * sysdeps/unix/sysv/linux/sys/kdaemon.h: Likewise. * sysdeps/unix/sysv/linux/sys/klog.h: Likewise. * sysdeps/unix/sysv/linux/sys/mount.h: Likewise. * sysdeps/unix/sysv/linux/sys/prctl.h: Likewise. * sysdeps/unix/sysv/linux/sys/ptrace.h: Likewise. * sysdeps/unix/sysv/linux/sys/quota.h: Likewise. * sysdeps/unix/sysv/linux/sys/sendfile.h: Likewise. * sysdeps/unix/sysv/linux/sys/swap.h: Likewise. * sysdeps/unix/sysv/linux/sys/sysctl.h: Likewise. * sysdeps/unix/sysv/linux/sys/sysinfo.h: Likewise. * sysdeps/unix/sysv/linux/sys/timex.h: Likewise. * sysdeps/unix/sysv/linux/i386/sys/vm86.h: Likewise. * sysdeps/unix/sysv/linux/i386/sys/perm.h: Likewise. 1999-10-18 Andreas Jaeger <aj@suse.de> * iconv/iconv_prog.c (process_block): Save errno value from iconv call. Patch by Bruno Haible <haible@ilog.fr> [libc/1402]. 1999-10-18 Ulrich Drepper <drepper@cygnus.com> * po/gl.po: New file. 1999-10-18 Andreas Schwab <schwab@suse.de> * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Correct namespace selection. 1999-10-18 Andreas Schwab <schwab@suse.de> * debug/xtrace.sh: Use TERMINAL_PROG instead of TERM to avoid clash with the TERM environment variable. 1999-10-18 Andreas Jaeger <aj@suse.de> * sysdeps/generic/s_cproj.c (__cproj): Fix bug: NaN + i NaN returns now NaN + i NaN. * sysdeps/generic/s_cprojf.c (__cprojf): Likewise * sysdeps/generic/s_cprojl.c (__cprojl): Likewise. 1999-10-18 Andreas Jaeger <aj@suse.de> * include/aio.h: Remove K&R compatiblity. * include/alloca.h: Likewise. * include/db.h: Likewise. * include/dirent.h: Likewise. * include/fcntl.h: Likewise. * include/fpu_control.h: Likewise. * include/glob.h: Likewise. * include/grp.h: Likewise. * sysdeps/unix/sysv/linux/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/bits/sched.h: Likewise. * sysdeps/unix/sysv/linux/bits/siginfo.h: Likewise. * sysdeps/unix/sysv/linux/bits/socket.h: Likewise. * include/execinfo.h: Add __THROW. 1999-10-18 Ulrich Drepper <drepper@cygnus.com> * sysdeps/mips/Implies: Remove wordsize-32 reference. * sysdeps/mips/mips3/Implies: Add it here.
49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/* Compute projection of complex long double value to Riemann sphere.
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Copyright (C) 1997, 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <complex.h>
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#include <math.h>
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__complex__ long double
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__cprojl (__complex__ long double x)
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{
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__complex__ long double res;
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if (isnan (__real__ x) && isnan (__imag__ x))
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return x;
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else if (!isfinite (__real__ x) || !isfinite (__imag__ x))
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{
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__real__ res = INFINITY;
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__imag__ res = __copysignl (0.0, __imag__ x);
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}
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else
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{
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long double den = (__real__ x * __real__ x + __imag__ x * __imag__ x
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+ 1.0);
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__real__ res = (2.0 * __real__ x) / den;
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__imag__ res = (2.0 * __imag__ x) / den;
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}
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return res;
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}
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weak_alias (__cprojl, cprojl)
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