| 0,0 → 1,49 |
|---|
| /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */ |
| /* w_lgammaf.c -- float version of w_lgamma.c. |
| * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@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[] = "$Id: w_lgammaf.c,v 1.1 1994/08/10 20:35:00 jtc Exp $"; |
| #endif |
| |
| #include "math.h" |
| #include "math_private.h" |
| |
| extern int signgam; |
| |
| #ifdef __STDC__ |
| float lgammaf(float x) |
| #else |
| float lgammaf(x) |
| float x; |
| #endif |
| { |
| #ifdef _IEEE_LIBM |
| return __ieee754_lgammaf_r(x,&signgam); |
| #else |
| float y; |
| y = __ieee754_lgammaf_r(x,&signgam); |
| if(_LIB_VERSION == _IEEE_) return y; |
| if(!finitef(y)&&finitef(x)) { |
| if(floorf(x)==x&&x<=(float)0.0) |
| /* lgamma pole */ |
| return (float)__kernel_standard((double)x,(double)x,115); |
| else |
| /* lgamma overflow */ |
| return (float)__kernel_standard((double)x,(double)x,114); |
| } else |
| return y; |
| #endif |
| } |