1 2 /* @(#)w_lgamma_r.c 1.3 95/01/18 */ 3 /* 4 * ==================================================== 5 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 6 * 7 * Developed at SunSoft, a Sun Microsystems, Inc. business. 8 * Permission to use, copy, modify, and distribute this 9 * software is freely granted, provided that this notice 10 * is preserved. 11 * ==================================================== 12 */ 13 14 /* 15 * wrapper double ieee_lgamma_r(double x, int *signgamp) 16 */ 17 18 #include "fdlibm.h" 19 20 21 #ifdef __STDC__ 22 double ieee_lgamma_r(double x, int *signgamp) /* wrapper lgamma_r */ 23 #else 24 double ieee_lgamma_r(x,signgamp) /* wrapper lgamma_r */ 25 double x; int *signgamp; 26 #endif 27 { 28 #ifdef _IEEE_LIBM 29 return __ieee754_lgamma_r(x,signgamp); 30 #else 31 double y; 32 y = __ieee754_lgamma_r(x,signgamp); 33 if(_LIB_VERSION == _IEEE_) return y; 34 if(!ieee_finite(y)&&ieee_finite(x)) { 35 if(ieee_floor(x)==x&&x<=0.0) 36 return __kernel_standard(x,x,15); /* lgamma pole */ 37 else 38 return __kernel_standard(x,x,14); /* lgamma overflow */ 39 } else 40 return y; 41 #endif 42 } 43
