glibc/sysdeps/libm-ieee754/w_lgamma.c
Ulrich Drepper b9337b6a58 Update.
1998-04-11 09:33  Ulrich Drepper  <drepper@cygnus.com>

	* Makeconfig (rtobjdir): New variable.
	(rpath-link): Add rtobjdir and thread directory, if available.

	* test-skeleton.c: Add support to remove temporary files.
	Always define test_dir.  Improve message about expected signal.

	* rt/Makefile (tests): Add tst-aio.
	Add rules for tst-aio to be linked with librt and thread library.
	* rt/aio_misc.c: Correct fundamental bugs.
	* rt/aio_suspend.c: Correct bug in test for available request.
	Initialize conditional variable.
	* rt/lio_listio.c: Initialize conditional variable.
	* rt/lio_listio64.c: Likewise.
	* rt/tst-aio.c: New file.

	* sysdeps/libm-ieee754/s_signgam.c: Undo last change.
	* sysdeps/libm-ieee754/w_gamma.c: Likewise.  Adopt for ISO C 9x.
	* sysdeps/libm-ieee754/w_gammaf.c: Likewise.
	* sysdeps/libm-ieee754/w_gammal.c: Likewise.
	* sysdeps/libm-ieee754/w_lgamma.c: Likewise.
	* sysdeps/libm-ieee754/w_lgammaf.c: Likewise.
	* sysdeps/libm-ieee754/w_lgammal.c: Likewise.

1998-04-11 14:49  Mark Kettenis  <kettenis@landau.phys.uva.nl>

	* posix/regex.c [_LIBC] (__re_syntax_options): Initialize to 0.

	* elf/dl-load.c (open_path): Use correct name for test whether
	directory in load path exists.

	* sysdeps/libm-ieee754/s_expm1.c: Remove variable one.
	* sysdeps/libm-ieee754/e_pow.c: Fix typo.
	Patches by Tom Rini <trini@kernel.crashing.org>.

	* wcsmbs/wcstof_l.c: Declare ____wcstoull_l_internal.
	* wcsmbs/wcstod_l.c: Likewise.
	* wcsmbs/wcstold_l.c: Likewise.
1998-04-11 09:51:01 +00:00

57 lines
1.5 KiB
C

/* @(#)w_lgamma.c 5.1 93/09/24 */
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
#if defined(LIBM_SCCS) && !defined(lint)
static char rcsid[] = "$NetBSD: w_lgamma.c,v 1.6 1995/05/10 20:49:24 jtc Exp $";
#endif
/* double lgamma(double x)
* Return the logarithm of the Gamma function of x.
*
* Method: call __ieee754_lgamma_r
*/
#include "math.h"
#include "math_private.h"
#ifdef __STDC__
double __lgamma(double x)
#else
double __lgamma(x)
double x;
#endif
{
#ifdef _IEEE_LIBM
return __ieee754_lgamma_r(x,&signgam);
#else
double y;
int local_signgam;
y = __ieee754_lgamma_r(x,&local_signgam);
if (_LIB_VERSION != _ISOC_)
/* ISO C 9x does not define the global variable. */
signgam = local_signgam;
if(_LIB_VERSION == _IEEE_) return y;
if(!__finite(y)&&__finite(x)) {
if(__floor(x)==x&&x<=0.0)
return __kernel_standard(x,x,15); /* lgamma pole */
else
return __kernel_standard(x,x,14); /* lgamma overflow */
} else
return y;
#endif
}
weak_alias (__lgamma, lgamma)
#ifdef NO_LONG_DOUBLE
strong_alias (__lgamma, __lgammal)
weak_alias (__lgamma, lgammal)
#endif