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glibc/math/w_lgammaf_r.c
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/* w_lgammaf_r.c -- float version of w_lgamma_r.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[] = "$NetBSD: w_lgammaf_r.c,v 1.3 1995/05/10 20:49:32 jtc Exp $"; | |
#endif | |
/* | |
* wrapper float lgammaf_r(float x, int *signgamp) | |
*/ | |
#include "math.h" | |
#include "math_private.h" | |
#ifdef __STDC__ | |
float __lgammaf_r(float x, int *signgamp) /* wrapper lgammaf_r */ | |
#else | |
float __lgammaf_r(x,signgamp) /* wrapper lgammaf_r */ | |
float x; int *signgamp; | |
#endif | |
{ | |
#ifdef _IEEE_LIBM | |
return __ieee754_lgammaf_r(x,signgamp); | |
#else | |
float y; | |
y = __ieee754_lgammaf_r(x,signgamp); | |
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 | |
} | |
weak_alias (__lgammaf_r, lgammaf_r) |