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 #if defined(LIBM_SCCS) && !defined(lint) 17 static char rcsid[] = "$NetBSD: w_gammaf_r.c,v 1.4 1995/11/20 22:06:50 jtc Exp $"; 18 #endif 19 20 /* 21 * wrapper float gammaf_r(float x, int *signgamp) 22 */ 23 24 #include "math.h" 25 #include "math_private.h" 26 27 float 28 gammaf_r(float x, int *signgamp) /* wrapper lgammaf_r */ 29 { 30 #ifdef _IEEE_LIBM 31 return __ieee754_lgammaf_r(x,signgamp); 32 #else 33 float y; 34 y = __ieee754_lgammaf_r(x,signgamp); 35 if(_LIB_VERSION == _IEEE_) return y; 36 if(!finitef(y)&&finitef(x)) { 37 if(floorf(x)==x&&x<=(float)0.0) 38 /* gammaf pole */ 39 return (float)__kernel_standard((double)x,(double)x,141); 40 else 41 /* gamma overflow */ 42 return (float)__kernel_standard((double)x,(double)x,140); 43 } else 44 return y; 45 #endif 46 } 47