glibc/math/w_lgammal.c
Ulrich Drepper ec751a23c0 Update.
1999-10-31  Ulrich Drepper  <drepper@cygnus.com>

	* includes/features.h: Replace __USE_ISOC9X by __USE_ISOC99 and also
	recognize _ISOC99_SOURCE.
	* libio/stdio.h: Likewise.
	* math/math.h: Likewise.
	* math/bits/mathcalls.h: Likewise.
	* math/stdio.h: Likewise.
	* stdlib/stdlib.h: Likewise.
	* sysdeps/alpha/fpu/bits/mathdef.h: Likewise.
	* sysdeps/alpha/fpu/bits/mathinline.h: Likewise.
	* sysdeps/arm/bits/huge_val.h: Likewise.
	* sysdeps/generic/bits/mathdef.h: Likewise.
	* sysdeps/i386/bits/huge_val.h: Likewise.
	* sysdeps/i386/fpu/bits/mathdef.h: Likewise.
	* sysdeps/i386/fpu/bits/mathinline.h: Likewise.
	* sysdeps/ieee754/bits/huge_val.h: Likewise.
	* sysdeps/m68k/bits/huge_val.h: Likewise.
	* sysdeps/m68k/fpu/bits/mathdef.h: Likewise.
	* sysdeps/m68k/fpu/bits/mathinline.h: Likewise.
	* sysdeps/powerpc/bits/mathdef.h: Likewise.
	* sysdeps/powerpc/bits/mathinline.h: Likewise.
	* sysdeps/sparc/fpu/bits/mathdef.h: Likewise.
	* sysdeps/sparc/fpu/bits/mathinline.h: Likewise.
	* sysdeps/sparc/sparc32/fpu/bits/huge_val.h: Likewise.
	* wcsmbs/wchar.h: Likewise.

	* sysdeps/powerpc/bits/mathdef.h: Moved to...
	* sysdeps/powerpc/fpu/bits/mathdef.h: ...here.
	* sysdeps/powerpc/bits/mathinline.h: Moved to...
	* sysdeps/powerpc/fpu/bits/mathinline.h: ...here.

1999-10-31  Andreas Jaeger  <aj@suse.de>

	* manual/math.texi (Errors in Math Functions): Correct TeX code.

1999-10-31  Andreas Jaeger  <aj@suse.de>

	* math/libm-test.inc:  Change comments to use ISO C99 instead of
	ISO C9x.
	* math/w_lgamma.c: Likewise.
	* math/w_lgammaf.c: Likewise.
	* math/w_lgammal.c: Likewise.
	* math/test-fenv.c: Likewise.
	* sysdeps/ieee754/ldbl-96/printf_fphex.c: Likewise.
	* sysdeps/ieee754/ldbl-128/printf_fphex.c: Likewise.
	* sysdeps/generic/printf_fphex.c: Likewise.

1999-10-31  Andreas Jaeger  <aj@suse.de>

	* manual/arith.texi (Parsing of Floats): Remove C from ISO C comment.

	* manual/math.texi: Change ISO C9x to ISO C99.
	* manual/startup.texi: Likewise.
	* manual/stdio.texi: Likewise.

1999-10-31  Andreas Jaeger  <aj@suse.de>

	* manual/arith.texi: Change ISO C9x to ISO C99.
	* manual/time.texi (Low-Level Time String Parsing): Likewise.
1999-10-31 17:37:43 +00:00

59 lines
1.6 KiB
C

/* w_lgammal.c -- long double version of w_lgamma.c.
* Conversion to long double by Ulrich Drepper,
* Cygnus Support, drepper@cygnus.com.
*/
/*
* ====================================================
* 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: $";
#endif
/* long double lgammal(long double x)
* Return the logarithm of the Gamma function of x.
*
* Method: call __ieee754_lgammal_r
*/
#include "math.h"
#include "math_private.h"
#ifdef __STDC__
long double __lgammal(long double x)
#else
long double __lgammal(x)
long double x;
#endif
{
#ifdef _IEEE_LIBM
return __ieee754_lgammal_r(x,&signgam);
#else
long double y;
int local_signgam;
y = __ieee754_lgammal_r(x,&local_signgam);
if (_LIB_VERSION != _ISOC_)
/* ISO C99 does not define the global variable. */
signgam = local_signgam;
if(_LIB_VERSION == _IEEE_) return y;
if(!__finitel(y)&&__finitel(x)) {
if(__floorl(x)==x&&x<=0.0)
return __kernel_standard(x,x,215); /* lgamma pole */
else
return __kernel_standard(x,x,214); /* lgamma overflow */
} else
return y;
#endif
}
weak_alias (__lgammal, lgammal)
strong_alias (__lgammal, __gammal)
weak_alias (__gammal, gammal)