77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is Mozilla Communicator client code, released
|
|
* March 31, 1998.
|
|
*
|
|
* The Initial Developer of the Original Code is Sun Microsystems,
|
|
* Inc. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the
|
|
* terms of the GNU Public License (the "GPL"), in which case the
|
|
* provisions of the GPL are applicable instead of those above.
|
|
* If you wish to allow use of your version of this file only
|
|
* under the terms of the GPL and not to allow others to use your
|
|
* version of this file under the NPL, indicate your decision by
|
|
* deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this
|
|
* file under either the NPL or the GPL.
|
|
*/
|
|
|
|
/* @(#)w_lgamma_r.c 1.3 95/01/18 */
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunSoft, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
/*
|
|
* wrapper double lgamma_r(double x, int *signgamp)
|
|
*/
|
|
|
|
#include "fdlibm.h"
|
|
|
|
|
|
#ifdef __STDC__
|
|
double fd_lgamma_r(double x, int *signgamp) /* wrapper lgamma_r */
|
|
#else
|
|
double fd_lgamma_r(x,signgamp) /* wrapper lgamma_r */
|
|
double x; int *signgamp;
|
|
#endif
|
|
{
|
|
#ifdef _IEEE_LIBM
|
|
return __ieee754_lgamma_r(x,signgamp);
|
|
#else
|
|
double y;
|
|
y = __ieee754_lgamma_r(x,signgamp);
|
|
if(_LIB_VERSION == _IEEE_) return y;
|
|
if(!fd_finite(y)&&fd_finite(x)) {
|
|
int err;
|
|
if(fd_floor(x)==x&&x<=0.0)
|
|
return __kernel_standard(x,x,15,&err); /* lgamma pole */
|
|
else
|
|
return __kernel_standard(x,x,14,&err); /* lgamma overflow */
|
|
} else
|
|
return y;
|
|
#endif
|
|
}
|