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author | Ulrich Drepper <drepper@redhat.com> | 1997-06-19 19:11:22 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1997-06-19 19:11:22 +0000 |
commit | d705269e75ff9846000abea981774b381b076482 (patch) | |
tree | 7bd717a8489ad113cb0d10b7628a88d6a55cb836 /sysdeps/libm-ieee754/e_lgamma_r.c | |
parent | e7f1f046f51d95d5d05ada3abd3f2e88219118e9 (diff) | |
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1997-06-19 19:38 Ulrich Drepper <drepper@cygnus.com>
* features.h: Define __STDC_IEC_559__ and _STDC_IEC_559_COMPLEX__.
* elf/dl-minimal.c (__dcgettext): Remove assertion.
* inet/rcmd.c: Correct a few typos. Reported by Eric Troan.
* manual/Makefile (distribute): Add dir.
* manual/dir: New file.
* math/Makefile (libm-support): Rename s_rinttol, s_rinttoll,
s_roundtol, and s_roundtoll to s_lrint, s_llrint, s_lround,
and s_llround respectively.
(libm-calls): Add e_gamma_r.
* math/libm-test.c (check_int_exc): New function.
(signbit_test): Remove test for sign of NaN.
(gamma_test): Clear exception after test of existence.
Correct tests and and epsilons.
(lgamma_test): Likewise.
(ilogb_test): Correct all tests.
(scalb_test): Rewrite.
(rinttol_test): Rename to lrint_test and correct tests.
(rinttoll_test): Likewise.
(roundtol_test): Likewise.
(roundtoll_test): Likewise.
(main): Call lrint/lround functions instead of rinttol/roundtol.
* math/math.h: Change prototypes for rinttol/roundtol.
* math/mathcalls.h: Rearrange prototypes according to ISO C9X draft.
* sysdeps/generic/mathbits.h: Define FP_ILOGB0 and FP_ILOGBNAN.
* sysdeps/i386/mathbits.h: Likewise.
* sysdeps/libm-i387/e_scalb.S: Handle special cases correctly.
* sysdeps/libm-i387/e_scalbf.S: Likewise.
* sysdeps/libm-i387/e_scalbl.S: Likewise.
* sysdeps/libm-i387/s_asinh.S: Handle -inf correctly.
* sysdeps/libm-i387/s_asinhf.S: Likewise.
* sysdeps/libm-i387/s_asinhl.S: Likewise.
* sysdeps/libm-i387/s_ilogb.S: Optimize.
* sysdeps/libm-i387/s_ilogbf.S: Likewise.
* sysdeps/libm-i387/s_ilogbl.S: Likewise.
* sysdeps/libm-i387/s_rinttol.S: Rename to...
* sysdeps/libm-i387/s_lrint.S: ...this.
* sysdeps/libm-i387/s_rinttoll.S: Rename to...
* sysdeps/libm-i387/s_llrint.S: ...this.
* sysdeps/libm-i387/s_remquo.S: Correctly set sign of remainder.
* sysdeps/libm-i387/s_remquof.S: Likewise.
* sysdeps/libm-i387/s_remquol.S: Likewise.
* sysdeps/libm-i387/e_gamma_r.c: New file. Implementation of gamma
function according to ISO C.
* sysdeps/libm-i387/e_gammaf_r.c: New file.
* sysdeps/libm-i387/e_gammal_r.c: New file.
* sysdeps/libm-i387/e_lgamma_r.c: Don't let optimize compile the
generation of exceptions away.
* sysdeps/libm-i387/e_lgammaf_r.c: Likewise.
* sysdeps/libm-i387/k_standard.c: Correct return value for infinity
points of gamma function when not SVID mode.
* sysdeps/libm-i387/s_rinttoll.c: Renamed to...
* sysdeps/libm-i387/s_llrint.c: ...this.
* sysdeps/libm-i387/s_rinttol.c: Renamed to...
* sysdeps/libm-i387/s_lrint.c: ...this.
* sysdeps/libm-i387/s_roundtoll.c: Renamed to...
* sysdeps/libm-i387/s_llround.c: ...this.
* sysdeps/libm-i387/s_roundtol.c: Renamed to...
* sysdeps/libm-i387/s_lround.c: ..this.
* sysdeps/libm-i387/s_scalbn.c: Change second parameter according to
ISO C.
* sysdeps/libm-i387/s_scalbnf.c: Likewise.
* sysdeps/libm-i387/s_scalbnl.c: Likewise.
* sysdeps/libm-i387/w_gamma.c: Call __ieee754_gamma_r if library
mode is not _SVID_.
* sysdeps/libm-i387/w_gammaf.c: Likewise.
* sysdeps/libm-i387/w_gammal.c: Likewise.
* sysdeps/m68k/fpu/__math.h: Rename __rinttol to __lrint and
rinttol to lrint.
* sysdeps/m68k/fpu/s_rinttol.c: Renamed to...
* sysdeps/m68k/fpu/s_lrint.c: ...this.
* sysdeps/m68k/fpu/s_rinttoll.c: Renamed to...
* sysdeps/m68k/fpu/s_llrint.c: ...this.
* md5-crypt/Makefile: Link md5test program with md5.o.
* stdio-common/temptest.c: Don't use __stdio_gen_tempname which
is not exported by the libc.so.
* stdio-common/vfscanf.c: Correct scanning of strings after last
change.
* sysdeps/unix/sysv/linux/i386/sysdep.S: Use .comm to define errno.
1997-06-19 07:37 H.J. Lu <hjl@gnu.ai.mit.edu>
* time/tzfile.c (__tzfile_read): Store getc () return in int.
1997-06-13 Miles Bader <miles@gnu.ai.mit.edu>
* argp/argp-parse.c (argp_version_parser): Include `(PROGRAM ERROR)' in
the no-version error text to indicate that something's fucked.
[!_] (N_): New macro.
(argp_default_options, argp_version_options): Wrap doc strings in N_().
1997-06-12 Miles Bader <miles@gnu.ai.mit.edu>
* argp/argp-parse.c (parser_parse_opt): Detect and report unhandled
options here.
(parser_parse_arg): Handle ARGP_KEY_ARGS here.
Adjust NEXT pointer back if we fail to parse anything.
(parser_parse_next): Simplify arg code. Leave state NEXT frobbing
to parser_parse_arg.
1997-06-11 Miles Bader <miles@gnu.ai.mit.edu>
* argp/argp.h (ARGP_KEY_ARGS, ARGP_KEY_FINI): New macros.
* argp/argp-parse.c (parser_finalize): Do another pass over the
parsers with ARGP_KEY_FINI.
1997-06-18 Miles Bader <miles@gnu.ai.mit.edu>
* string/Makefile (routines): Add argz-replace.
1997-06-16 00:16 Miles Bader <miles@gnu.ai.mit.edu>
* manual/string.texi (Argz Functions): Document argz_replace.
1997-06-12 Miles Bader <miles@gnu.ai.mit.edu>
* string/argz.h (__argz_replace, argz_replace): New declarations.
* string/argz-replace.c: New file.
1997-06-11 Miles Bader <miles@gnu.ai.mit.edu>
* manual/argp.texi (Argp Special Keys): Document ARGP_KEY_ARGS.
1997-06-16 23:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makeconfig (libc-map): Remove definition.
* Makerules (libc-map): Define it here, using the full name.
(load-map-file): Remove case for empty $(..).
($(common-objpfx)libc.so): Revert last change.
1997-06-17 22:18 Mark Kettenis <kettenis@phys.uva.nl>
* login/programs/utmpd.c (main): Improve signal handling.
* login/programs/request.c (do_setutent, do_updwtmp):
Allow arbitrary length filenames.
* login/programs/utmpd.h (setutent_request, updwtmp_request):
Get rid of fixed length file field.
* login/utmp_daemon.c (do_setutent, do_updwtmp):
Allow arbitrary length filenames.
* login/programs/request.c (do_pututline):
Don't fail if connection->position is -1 on entry.
1997-06-15 16:32 Mark Kettenis <kettenis@phys.uva.nl>
* login/utmp_file.c (updwtmp_file): Use the same method for
appending an entry as in pututline_file.
1997-06-11 18:59 Mark Kettenis <kettenis@phys.uva.nl>
* login/utmp_file.c (getutent_r_file):
Use read lock instead of write lock.
(getutline_r_file, internal_getut_r): Lock utmp file.
(updwtmp_file): Use fcntl to lock file instead of flock.
1997-06-18 00:11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* stdio-common/vfscanf.c (inchar, ungetc): Don't count EOF as
character read in/put back.
* stdio-common/tstscanf.c: Add test case for this.
1997-06-17 22:17 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libc.map: Add more symbols.
1997-06-18 12:01 Ulrich Drepper <drepper@cygnus.com>
* manual/Makefile (install): Make sure `dir' file exists if we use
install-info.
1997-06-17 19:32 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* manual/Makefile (info): Depend on dir-add.info.
1997-06-17 17:19 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* elf/ldd.bash.in: Fix spacing in message.
1997-06-17 14:28 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* elf/do-rel.h (elf_dynamic_do_rel): Always use version
information if available.
1997-06-17 11:34 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sunrpc/Makefile ($(rpcsvc:%.x=$(objpfx)rpcsvc/%.h)): Make
command non-empty to force make to recheck modification time.
($(rpcsvc:%.x=$(objpfx)x%.c)): Likewise.
1997-06-17 00:26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/stub/e_acoshl.c: Set errno to ENOSYS.
* sysdeps/stub/e_acosl.c: Likewise.
* sysdeps/stub/e_asinl.c: Likewise.
* sysdeps/stub/e_atan2l.c: Likewise.
* sysdeps/stub/e_expl.c: Likewise.
* sysdeps/stub/e_fmodl.c: Likewise.
* sysdeps/stub/e_j0l.c: Likewise.
* sysdeps/stub/e_j1l.c: Likewise.
* sysdeps/stub/e_jnl.c: Likewise.
* sysdeps/stub/e_lgammal_r.c: Likewise.
* sysdeps/stub/e_log10l.c: Likewise.
* sysdeps/stub/e_logl.c: Likewise.
* sysdeps/stub/e_powl.c: Likewise.
* sysdeps/stub/e_rem_pio2l.c: Likewise.
* sysdeps/stub/e_sqrtl.c: Likewise.
* sysdeps/stub/k_cosl.c: Likewise.
* sysdeps/stub/k_rem_pio2l.c: Likewise.
* sysdeps/stub/k_sinl.c: Likewise.
* sysdeps/stub/k_tanl.c: Likewise.
* sysdeps/stub/s_atanl.c: Likewise.
* sysdeps/stub/s_erfl.c: Likewise.
* sysdeps/stub/s_exp2.c: Likewise.
* sysdeps/stub/s_exp2f.c: Likewise.
* sysdeps/stub/s_exp2l.c: Likewise.
* sysdeps/stub/s_expm1l.c: Likewise.
* sysdeps/stub/s_log1pl.c: Likewise.
* sysdeps/stub/s_log2l.c: Likewise.
1997-06-18 11:46 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/w_gamma.c: If _LIB_VERSION is _SVID_ compute
result as before last change.
* sysdeps/libm-ieee754/w_gammaf.c: Likewise.
* sysdeps/libm-ieee754/w_gammal.c: Likewise.
1997-06-16 23:37 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/libm-ieee754/s_remquo.c: Fix off-by-one when computing
quotient.
* sysdeps/libm-ieee754/s_remquof.c: Likewise.
* sysdeps/libm-ieee754/s_remquol.c: Likewise.
* sysdeps/m68k/fpu/s_remquo.c: Remove FIXME and special case for
quotient.
* sysdeps/libm-ieee754/w_gamma.c: Add missing call to exp
function. Don't use global signgam.
* sysdeps/libm-ieee754/w_gammaf.c: Likewise.
* sysdeps/libm-ieee754/w_gammal.c: Likewise.
* math/Makefile (libm-calls): Remove w_gamma_r.
* sysdeps/libm-ieee754/w_gamma_r.c: Remove file.
* sysdeps/libm-ieee754/w_gammaf_r.c: Remove file.
* sysdeps/libm-ieee754/w_gammal_r.c: Remove file.
* math/libm-test.c (atanh_test): Declare x only if needed.
(signbit_test): Fix typo.
(gamma_test): Check whether function is implemented. Add
epsilons.
(lgamma_test): Likewise.
(fmod_test): Add epsilons.
(exp2_test): Use right function for existence test.
1997-06-07 09:20 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/powerpc/Dist: Add fenv_const.c.
* sysdeps/unix/sysv/linux/Dist: Add net/if_slip.h.
* sysdeps/unix/sysv/linux/powerpc/Dist: Add init-first.h and
syscall.h.
* sysdeps/unix/sysv/linux/sparc/Dist: Add init-first.h.
* string/Makefile (distribute): Add tst-svc.expect.
* nis/Makefile (distribute): Add nis_intern.h and Banner.
* elf/Makefile (distribute): Add dl-hash.h.
* Rules (subdir_echo-distinfo): Add headers from $(distribute).
* login/Makefile (others): Add utmpdump.
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
net/if_slip.h.
* manual/Makefile (dir-add.texi): Also look in indirectly included
files.
1997-06-16 23:15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/configure.in: Remove commands to
generate stdio_lim.h.
* sysdeps/unix/sysv/linux/mk-stdiolim.c: Remove.
* sysdeps/unix/sysv/linux/Makefile: Add rules to generate
stdio_lim.h here.
(common-generated): Add generated files.
(inhibit-stdio_lim): Define.
* sysdeps/posix/Makefile [$(inhibit-stdio_lim)=yes]: Disable rules
to generate stdio_lim.h.
* sysdeps/unix/sysv/linux/Makefile: Suppress inclusion of
dependecy files if no_deps is set.
($(objpfx)syscall-%.d): Add header file as target to dependency
generation.
1997-06-14 19:19 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/sysv/linux/arm/Dist: New file.
1997-06-14 17:59 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* extra-lib.mk (others): Depend on versioned shared library, not
the unversioned one.
* Makerules (build-shlib): Don't make the version link here.
($(common-objpfx)libc.so$(libc.so-version)): New rule for libc
version link.
1997-06-16 03:07 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/k_standard.c: Undo change of Tue Aug 6
01:13:56 1996.
* argp/argp-help.c (argp_args_usage): Supply correct argp to
filter_doc.
* argp/argp-help.c (hol_add_cluster): Initialize CL->depth.
* argp/argp-help.c (_help): Supply STATE to argp_args_usage.
* argp/argp.h (ARGP_KEY_HELP_ARGS_DOC): New macro.
* argp/argp-fmtstream.c: Add casts to prevent warnings.
* argp/argp.h (OPTION_NO_USAGE): New macro.
* argp/argp-help.c (usage_long_opt, usage_argful_short_opt,
* argp/argp-fmtstream.c (__argp_fmtstream_update): Account for case
* argp/argp-help.c <stddef.h>: New include.
* argp/argp.h (argp_state_help, __argp_state_help, argp_usage,
* argp/argp.h (argp_program_bug_address): Make const.
* argp/argp-parse.c (argp_default_parser): Set STATE->name for OPT_PROGNAME.
* argp/argp-help.c (__argp_error, __argp_failure, __argp_state_help):
* argp/argp-parse.c (parser_init): Set PARSER->state.flags.
Diffstat (limited to 'sysdeps/libm-ieee754/e_lgamma_r.c')
-rw-r--r-- | sysdeps/libm-ieee754/e_lgamma_r.c | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/sysdeps/libm-ieee754/e_lgamma_r.c b/sysdeps/libm-ieee754/e_lgamma_r.c index 1be4ddad8f..92e9556568 100644 --- a/sysdeps/libm-ieee754/e_lgamma_r.c +++ b/sysdeps/libm-ieee754/e_lgamma_r.c @@ -5,7 +5,7 @@ * * Developed at SunPro, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice + * software is freely granted, provided that this notice * is preserved. * ==================================================== */ @@ -15,12 +15,12 @@ static char rcsid[] = "$NetBSD: e_lgamma_r.c,v 1.7 1995/05/10 20:45:42 jtc Exp $ #endif /* __ieee754_lgamma_r(x, signgamp) - * Reentrant version of the logarithm of the Gamma function - * with user provide pointer for the sign of Gamma(x). + * Reentrant version of the logarithm of the Gamma function + * with user provide pointer for the sign of Gamma(x). * * Method: * 1. Argument Reduction for 0 < x <= 8 - * Since gamma(1+s)=s*gamma(s), for x in [0,8], we may + * Since gamma(1+s)=s*gamma(s), for x in [0,8], we may * reduce x to a number in [1.5,2.5] by * lgamma(1+s) = log(s) + lgamma(s) * for example, @@ -58,36 +58,36 @@ static char rcsid[] = "$NetBSD: e_lgamma_r.c,v 1.7 1995/05/10 20:45:42 jtc Exp $ * by * 3 5 11 * w = w0 + w1*z + w2*z + w3*z + ... + w6*z - * where + * where * |w - f(z)| < 2**-58.74 - * + * * 4. For negative x, since (G is gamma function) * -x*G(-x)*G(x) = pi/sin(pi*x), * we have * G(x) = pi/(sin(pi*x)*(-x)*G(-x)) * since G(-x) is positive, sign(G(x)) = sign(sin(pi*x)) for x<0 - * Hence, for x<0, signgam = sign(sin(pi*x)) and + * Hence, for x<0, signgam = sign(sin(pi*x)) and * lgamma(x) = log(|Gamma(x)|) * = log(pi/(|x*sin(pi*x)|)) - lgamma(-x); - * Note: one should avoid compute pi*(-x) directly in the + * Note: one should avoid compute pi*(-x) directly in the * computation of sin(pi*(-x)). - * + * * 5. Special Cases * lgamma(2+s) ~ s*(1-Euler) for tiny s * lgamma(1)=lgamma(2)=0 * lgamma(x) ~ -log(x) for tiny x * lgamma(0) = lgamma(inf) = inf * lgamma(-integer) = +-inf - * + * */ #include "math.h" #include "math_private.h" #ifdef __STDC__ -static const double +static const double #else -static double +static double #endif two52= 4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */ half= 5.00000000000000000000e-01, /* 0x3FE00000, 0x00000000 */ @@ -200,9 +200,9 @@ static double zero= 0.00000000000000000000e+00; } switch (n) { case 0: y = __kernel_sin(pi*y,zero,0); break; - case 1: + case 1: case 2: y = __kernel_cos(pi*(0.5-y),zero); break; - case 3: + case 3: case 4: y = __kernel_sin(pi*(one-y),zero,0); break; case 5: case 6: y = -__kernel_cos(pi*(y-1.5),zero); break; @@ -226,9 +226,11 @@ static double zero= 0.00000000000000000000e+00; /* purge off +-inf, NaN, +-0, and negative arguments */ *signgamp = 1; + if ((unsigned int) hx==0xfff00000&&lx==0) + return x-x; ix = hx&0x7fffffff; if(ix>=0x7ff00000) return x*x; - if((ix|lx)==0) return one/zero; + if((ix|lx)==0) return one/fabs(x); if(ix<0x3b900000) { /* |x|<2**-70, return -log(|x|) */ if(hx<0) { *signgamp = -1; @@ -237,9 +239,9 @@ static double zero= 0.00000000000000000000e+00; } if(hx<0) { if(ix>=0x43300000) /* |x|>=2**52, must be -integer */ - return one/zero; + return x/zero; t = sin_pi(x); - if(t==zero) return one/zero; /* -integer */ + if(t==zero) return one/fabsf(t); /* -integer */ nadj = __ieee754_log(pi/fabs(t*x)); if(t<zero) *signgamp = -1; x = -x; @@ -275,7 +277,7 @@ static double zero= 0.00000000000000000000e+00; p3 = t2+w*(t5+w*(t8+w*(t11+w*t14))); p = z*p1-(tt-w*(p2+y*p3)); r += (tf + p); break; - case 2: + case 2: p1 = y*(u0+y*(u1+y*(u2+y*(u3+y*(u4+y*u5))))); p2 = one+y*(v1+y*(v2+y*(v3+y*(v4+y*v5)))); r += (-0.5*y + p1/p2); @@ -304,7 +306,7 @@ static double zero= 0.00000000000000000000e+00; y = z*z; w = w0+z*(w1+y*(w2+y*(w3+y*(w4+y*(w5+y*w6))))); r = (x-half)*(t-one)+w; - } else + } else /* 2**58 <= x <= inf */ r = x*(__ieee754_log(x)-one); if(hx<0) r = nadj - r; |