1 /* w_gammaf_r.c -- float version of w_gamma_r.c. 2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. 3 */ 4 5 /* 6 * ==================================================== 7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 8 * 9 * Developed at SunPro, a Sun Microsystems, Inc. business. 10 * Permission to use, copy, modify, and distribute this 11 * software is freely granted, provided that this notice 12 * is preserved. 13 * ==================================================== 14 */ 15 16 #include <sys/cdefs.h> 17 #if defined(LIBM_SCCS) && !defined(lint) 18 __RCSID("$NetBSD: w_gammaf_r.c,v 1.8 2002/05/26 22:02:01 wiz Exp $"); 19 #endif 20 21 /* 22 * wrapper float gammaf_r(float x, int *signgamp) 23 */ 24 25 #include "math.h" 26 #include "math_private.h" 27 28 float 29 gammaf_r(float x, int *signgamp) /* wrapper lgammaf_r */ 30 { 31 #ifdef _IEEE_LIBM 32 return __ieee754_lgammaf_r(x,signgamp); 33 #else 34 float y; 35 y = __ieee754_lgammaf_r(x,signgamp); 36 if(_LIB_VERSION == _IEEE_) return y; 37 if(!finitef(y)&&finitef(x)) { 38 if(floorf(x)==x&&x<=(float)0.0) 39 /* gammaf pole */ 40 return (float)__kernel_standard((double)x,(double)x,141); 41 else 42 /* gamma overflow */ 43 return (float)__kernel_standard((double)x,(double)x,140); 44 } else 45 return y; 46 #endif 47 } 48