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author | Ulrich Drepper <drepper@redhat.com> | 1997-04-12 23:41:36 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-04-12 23:41:36 +0000 |
commit | 6355131153fd618d50286f0f24ac49b405d03ee5 (patch) | |
tree | 4927449e56ae721b2ddb0d42efcce211b6068004 /sysdeps/libm-ieee754/s_catanl.c | |
parent | c131718ccc1db101df54fb04f34f5611c3678450 (diff) | |
download | glibc-6355131153fd618d50286f0f24ac49b405d03ee5.tar.gz glibc-6355131153fd618d50286f0f24ac49b405d03ee5.tar.xz glibc-6355131153fd618d50286f0f24ac49b405d03ee5.zip |
Update.
1997-04-13 01:06 Ulrich Drepper <drepper@cygnus.com> * isomac.c: Improve messages. * math/Makefile (libm-calls): Add s_nearbyint, s_catan, s_casin, s_ccos, s_csin, s_ctan, s_ctanh, s_cacos, s_casinh, s_cacosh, s_catanh, s_csqrt, and s_cpow. * math/libm-test.c: New functions ccos_test, cacos_test, cacosh_test, casin_test, casinh_test, catan_test, catanh_test, ctanh_test, csqrt_test, cpow_test, rint_test. * math/math.h: Include new header mathbits.h which defines some more (system dependent) types and some macros. (isfinite): Use __finite instead of fpclassify. * sysdeps/generic/mathbits.h: New file. * sysdeps/i386/fpu/mathbits.h: New file. * sysdeps/i386/huge_val.h: Don't define INFINITY. * sysdeps/ieee754/huge_val.h: Likewise. * sysdeps/m68k/huge_val.h: Likewise. * sysdeps/i386/fpu/fenvbits.h: Define FE_NOMASK_ENV. * sysdeps/i386/fpu/fesetenv.c: Handle FE_NOMASK_ENV. * math/complex.h (_Imaginary_I): Define correctly. I misread the standard first. * sysdeps/libm-i387/s_finite.S: Optimized rewrite. * sysdeps/libm-i387/s_finitef.S: Likewise. * sysdeps/libm-i387/s_finitel.S: Likewise. Provided by Joe Keane <jgk@jgk.org>. * sysdeps/libm-i387/s_nearbyint.S: New file. * sysdeps/libm-i387/s_nearbyintf.S: New file. * sysdeps/libm-i387/s_nearbyintl.S: New file. * sysdeps/libm-ieee754/s_nearbyint.S: New file. * sysdeps/libm-ieee754/s_nearbyintf.S: New file. * sysdeps/libm-ieee754/s_nearbyintl.S: New file. * sysdeps/libm-ieee754/s_cacos.c: New file. * sysdeps/libm-ieee754/s_cacosf.c: New file. * sysdeps/libm-ieee754/s_cacosl.c: New file. * sysdeps/libm-ieee754/s_cacosh.c: New file. * sysdeps/libm-ieee754/s_cacoshf.c: New file. * sysdeps/libm-ieee754/s_cacoshl.c: New file. * sysdeps/libm-ieee754/s_casin.c: New file. * sysdeps/libm-ieee754/s_casinf.c: New file. * sysdeps/libm-ieee754/s_casinl.c: New file. * sysdeps/libm-ieee754/s_casinh.c: New file. * sysdeps/libm-ieee754/s_casinhf.c: New file. * sysdeps/libm-ieee754/s_casinhl.c: New file. * sysdeps/libm-ieee754/s_catan.c: New file. * sysdeps/libm-ieee754/s_catanf.c: New file. * sysdeps/libm-ieee754/s_catanl.c: New file. * sysdeps/libm-ieee754/s_catanh.c: New file. * sysdeps/libm-ieee754/s_catanhf.c: New file. * sysdeps/libm-ieee754/s_catanhl.c: New file. * sysdeps/libm-ieee754/s_ccos.c: New file. * sysdeps/libm-ieee754/s_ccosf.c: New file. * sysdeps/libm-ieee754/s_ccosl.c: New file. * sysdeps/libm-ieee754/s_cpow.c: New file. * sysdeps/libm-ieee754/s_cpowf.c: New file. * sysdeps/libm-ieee754/s_cpowl.c: New file. * sysdeps/libm-ieee754/s_csin.c: New file. * sysdeps/libm-ieee754/s_csinf.c: New file. * sysdeps/libm-ieee754/s_csinl.c: New file. * sysdeps/libm-ieee754/s_csqrt.c: New file. * sysdeps/libm-ieee754/s_csqrtf.c: New file. * sysdeps/libm-ieee754/s_csqrtl.c: New file. * sysdeps/libm-ieee754/s_ctan.c: New file. * sysdeps/libm-ieee754/s_ctanf.c: New file. * sysdeps/libm-ieee754/s_ctanl.c: New file. * sysdeps/libm-ieee754/s_ctanh.c: New file. * sysdeps/libm-ieee754/s_ctanhf.c: New file. * sysdeps/libm-ieee754/s_ctanhl.c: New file. * time/strftime.c (memset_space): Increment pointer. * time/strptime.c: Interpret year number 00-59 as 2000--2059. Patches by Karl Heuer <kwzh@gnu.ai.mit.edu>. 1997-04-11 11:57 Miguel de Icaza <miguel@nuclecu.unam.mx> * sysdeps/unix/sysv/linux/sparc/syscalls.list: Remove fork, pipe, syscall. 1997-04-05 00:57 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/libm-ieee754/s_remquo.c: Change algorithm, although probably still wrong. * sysdeps/libm-ieee754/s_remquof.c: Likewise. * sysdeps/libm-ieee754/s_remquol.c: Likewise. * math/libm-test.c (remquo_test): Corrected. 1997-04-11 00:01 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/fpu/__math.h (__rinttol, rinttol): New inline. * sysdeps/m68k/fpu/s_rinttol.c: New file. * sysdeps/m68k/fpu/s_rinttoll.c: New file. * math/libm-test.c (remquo_test): Use check_long to test the quotient. (cbrt_test): Add epsilons for long double. 1997-04-10 18:48 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * locale/localeinfo.h: Update declaration of _nl_current. 1997-04-11 11:27 Ulrich Drepper <drepper@cygnus.com> * rellnsh-sh: Use explicitely /bin/pwd to find the external program. * math/Makefile (headers): Add fenv.h and fenvbits.h. (libm-support): Add s_rountol, s_roundtoll, fclrexcpt, fgetexcptflg, fraiseexcpt, fsetexcptflg, ftestexcept, fegetround, fesetround, fegetenv, feholdexcpt, fesetenv, feupdateenv. (libm-calls): Add s_round. * math/fenv.h: New file. * math/libm-test.c: Correct tests for s_rinttol and s_rinttoll. Add roundtol_check and roundtoll_check. * math/math.h: Pretty printing. * sysdeps/i386/fpu/fclrexcpt.c: New file. * sysdeps/i386/fpu/fegetenv.c: New file. * sysdeps/i386/fpu/fegetround.c: New file. * sysdeps/i386/fpu/feholdexcpt.c: New file. * sysdeps/i386/fpu/fenvbits.h: New file. * sysdeps/i386/fpu/fesetenv.c: New file. * sysdeps/i386/fpu/fesetround.c: New file. * sysdeps/i386/fpu/fgetexcptflg.c: New file. * sysdeps/i386/fpu/fraiseexcpt.c: New file. * sysdeps/i386/fpu/fsetexcptflg.c: New file. * sysdeps/i386/fpu/ftestexcept.c: New file. * sysdeps/stub/fclrexcpt.c: New file. * sysdeps/stub/fegetenv.c: New file. * sysdeps/stub/fegetround.c: New file. * sysdeps/stub/feholdexcpt.c: New file. * sysdeps/stub/fenvbits.h: New file. * sysdeps/stub/fesetenv.c: New file. * sysdeps/stub/fesetround.c: New file. * sysdeps/stub/fgetexcptflg.c: New file. * sysdeps/stub/fraiseexcpt.c: New file. * sysdeps/stub/fsetexcptflg.c: New file. * sysdeps/stub/ftestexcept.c: New file. * sysdeps/libm-i387/s_trunc.S: New file. * sysdeps/libm-i387/s_truncf.S: New file. * sysdeps/libm-i387/s_truncl.S: New file. * sysdeps/libm-ieee754/s_round.c: New file. * sysdeps/libm-ieee754/s_roundf.c: New file. * sysdeps/libm-ieee754/s_roundl.c: New file. * sysdeps/libm-ieee754/s_ccosh.c: Rewritten to use fpclassify. * sysdeps/libm-ieee754/s_ccoshf.c: Likewise. * sysdeps/libm-ieee754/s_ccoshl.c: Likewise. * sysdeps/libm-ieee754/s_cexp.c: Likewise. * sysdeps/libm-ieee754/s_cexpf.c: Likewise. * sysdeps/libm-ieee754/s_cexpl.c: Likewise. * sysdeps/libm-ieee754/s_clog.c: Likewise. * sysdeps/libm-ieee754/s_clogf.c: Likewise. * sysdeps/libm-ieee754/s_clogl.c: Likewise. * sysdeps/libm-ieee754/s_csinh.c. Likewise. * sysdeps/libm-ieee754/s_csinhf.c. Likewise. * sysdeps/libm-ieee754/s_csinhl.c. Likewise. * sysdeps/libm-ieee754/s_ceill.c: Corrected. The mantissa has only 63 bits. * sysdeps/libm-ieee754/s_floorl.c: Likewise. * po/pl.po: Updated. * string/swab.c: Correctly handle array of odd length. * sysdeps/generic/memmem.c: Update copyright. 1997-04-10 20:22 Ulrich Drepper <drepper@cygnus.com> * hurd/Makefile (sunrpc-headers): Add clnt.h. Proposed by Thomas Bushnell <thomas@gnu.ai.mit.edu>. 1997-04-09 14:21 Miguel de Icaza <miguel@nuclecu.unam.mx> * sysdeps/sparc/dl-machine.h: Bug fix: I was not loading the proper value from the GOT. Pass argument block to init function. * sysdeps/sparc/elf/start.c: Call atexit (_fini) after calling _init (). * sysdeps/sparc/fpu_control.h: Fix the FPU constants. I got them wrong the first time. * sysdeps/sparc/setjmp.S: PIC code was clobbering a callee saved register. * sysdeps/sparc/udiv_qrnnd.S: Add type @function. * sysdeps/unix/sysv/linux/sparc/init-first.h: Linux/SPARC specific SYSDEP_CALL_INIT. * sysdeps/unix/sysv/linux/sparc/signum.h: Remove definition for NSIG and duplicated SIGIOT. 1997-04-05 00:57 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/libm-ieee754/s_remquo.c: Change algorithm, although probably still wrong. * sysdeps/libm-ieee754/s_remquof.c: Likewise. * sysdeps/libm-ieee754/s_remquol.c: Likewise. * math/libm-test.c (remquo_test): Corrected. 1997-04-03 18:35 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makefile (parent-tests): New target to run the tests to that they are executed even if some subdir tests have failed. (tests): Depend on parent-tests instead of running the tests directly. 1997-04-03 12:26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> Clean up name space pollution in libnss_*.so: * nis/nss_compat/compat-pwd.c, resolv/mapv4v6addr.h, resolv/nss_dns/dns-host.c: Replace bzero by memset, bcopy by memcpy and bcmp by memcmp to clean up namespace. * nss/nss_db/db-XXX.c (internal_setent): Use __dbopen instead of dbopen. * nss/nss_db/db-alias.c (internal_setent): Likewise. * nss/nss_db/db-netgrp.c (_nss_db_setnetgrent): Likewise. * db/db/db.c [_LIBC]: Define __dbopen instead of dbopen and make the latter a weak alias. * db/db.h: Declare __dbopen. * db/btree/btree.h [_LIBC]: Prepend __ to all mpool functions. * db/mpool/mpool.c [_LIBC]: Define all external functions with __ prefix and make the old names weak aliases. * db/mpool.h: Declare the new internal names. 1997-04-04 23:57 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * stdio-common/vfscanf.c: Fix scanning of hexadecimal fp number. * stdio-common/tstscanf.c: Add test case for this. 1997-04-04 17:26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/libm-test.c: Fix more typos. 1997-04-03 17:15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/libm-test.c (csinh_test): Fix test names. (ccosh_test): Likewise. * sysdeps/libm-ieee754/s_csinh.c: Use sinh function instead of computing it directly. * sysdeps/libm-ieee754/s_csinhf.c: Likewise. * sysdeps/libm-ieee754/s_csinhl.c: Likewise. * sysdeps/libm-ieee754/s_ccosh.c: Use cosh function instead of computing it directly. * sysdeps/libm-ieee754/s_ccoshf.c: Likewise. * sysdeps/libm-ieee754/s_ccoshl.c: Likewise. * sysdeps/libm-ieee754/s_cexp.c: Use internal exp function instead of wrapper. * sysdeps/libm-ieee754/s_cexpf.c: Likewise. * sysdeps/libm-ieee754/s_cexpl.c: Likewise. * sysdeps/m68k/fpu/s_cexp.c: Likewise. Correct handling of special values. Avoid use of fsincos if all that is needed is the quadrant. * sysdeps/m68k/fpu/s_ccosh.c: New file. * sysdeps/m68k/fpu/s_ccoshf.c: New file. * sysdeps/m68k/fpu/s_ccoshl.c: New file. * sysdeps/m68k/fpu/s_csinh.c: New file. * sysdeps/m68k/fpu/s_csinhl.c: New file. * sysdeps/m68k/fpu/s_csinhf.c: New file. 1997-04-03 10:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/Makefile (dir-add.texi): Simplify. * libio/genops.c (_IO_flush_all_linebuffered): Don't flush on
Diffstat (limited to 'sysdeps/libm-ieee754/s_catanl.c')
-rw-r--r-- | sysdeps/libm-ieee754/s_catanl.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/s_catanl.c b/sysdeps/libm-ieee754/s_catanl.c new file mode 100644 index 0000000000..2fd8a4fa08 --- /dev/null +++ b/sysdeps/libm-ieee754/s_catanl.c @@ -0,0 +1,85 @@ +/* Return arc tangent of complex long double value. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <complex.h> +#include <math.h> + +#include "math_private.h" + + +__complex__ long double +__catanl (__complex__ long double x) +{ + __complex__ long double res; + int rcls = fpclassify (__real__ x); + int icls = fpclassify (__imag__ x); + + if (rcls <= FP_INFINITE || icls <= FP_INFINITE) + { + if (rcls == FP_INFINITE) + { + __real__ res = __copysignl (M_PI_2, __real__ x); + __imag__ res = __copysignl (0.0, __imag__ x); + } + else if (icls == FP_INFINITE) + { + if (rcls >= FP_ZERO) + __real__ res = __copysignl (M_PI_2, __real__ x); + else + __real__ res = __nanl (""); + __imag__ res = __copysignl (0.0, __imag__ x); + } + else if (icls == FP_ZERO || icls == FP_INFINITE) + { + __real__ res = __nanl (""); + __imag__ res = __copysignl (0.0, __imag__ x); + } + else + { + __real__ res = __nanl (""); + __imag__ res = __nanl (""); + } + } + else if (rcls == FP_ZERO && icls == FP_ZERO) + { + res = x; + } + else + { + long double r2, num, den; + + r2 = __real__ x * __real__ x; + + den = 1 - r2 - __imag__ x * __imag__ x; + + __real__ res = 0.5 * __atanl ((2.0 * __real__ x) / den); + + num = __imag__ x + 1.0; + num = r2 + num * num; + + den = __imag__ x - 1.0; + den = r2 + den * den; + + __imag__ res = 0.25 * __ieee754_logl (num / den); + } + + return res; +} +weak_alias (__catanl, catanl) |