1*1e651e1eSRoland Levillain 2*1e651e1eSRoland Levillain /* @(#)w_gamma_r.c 1.3 95/01/18 */ 3*1e651e1eSRoland Levillain /* 4*1e651e1eSRoland Levillain * ==================================================== 5*1e651e1eSRoland Levillain * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. 6*1e651e1eSRoland Levillain * 7*1e651e1eSRoland Levillain * Developed at SunSoft, a Sun Microsystems, Inc. business. 8*1e651e1eSRoland Levillain * Permission to use, copy, modify, and distribute this 9*1e651e1eSRoland Levillain * software is freely granted, provided that this notice 10*1e651e1eSRoland Levillain * is preserved. 11*1e651e1eSRoland Levillain * ==================================================== 12*1e651e1eSRoland Levillain */ 13*1e651e1eSRoland Levillain 14*1e651e1eSRoland Levillain /* 15*1e651e1eSRoland Levillain * wrapper double ieee_gamma_r(double x, int *signgamp) 16*1e651e1eSRoland Levillain */ 17*1e651e1eSRoland Levillain 18*1e651e1eSRoland Levillain #include "fdlibm.h" 19*1e651e1eSRoland Levillain 20*1e651e1eSRoland Levillain 21*1e651e1eSRoland Levillain #ifdef __STDC__ ieee_gamma_r(double x,int * signgamp)22*1e651e1eSRoland Levillain double ieee_gamma_r(double x, int *signgamp) /* wrapper lgamma_r */ 23*1e651e1eSRoland Levillain #else 24*1e651e1eSRoland Levillain double ieee_gamma_r(x,signgamp) /* wrapper lgamma_r */ 25*1e651e1eSRoland Levillain double x; int *signgamp; 26*1e651e1eSRoland Levillain #endif 27*1e651e1eSRoland Levillain { 28*1e651e1eSRoland Levillain #ifdef _IEEE_LIBM 29*1e651e1eSRoland Levillain return __ieee754_gamma_r(x,signgamp); 30*1e651e1eSRoland Levillain #else 31*1e651e1eSRoland Levillain double y; 32*1e651e1eSRoland Levillain y = __ieee754_gamma_r(x,signgamp); 33*1e651e1eSRoland Levillain if(_LIB_VERSION == _IEEE_) return y; 34*1e651e1eSRoland Levillain if(!ieee_finite(y)&&ieee_finite(x)) { 35*1e651e1eSRoland Levillain if(ieee_floor(x)==x&&x<=0.0) 36*1e651e1eSRoland Levillain return __kernel_standard(x,x,41); /* gamma pole */ 37*1e651e1eSRoland Levillain else 38*1e651e1eSRoland Levillain return __kernel_standard(x,x,40); /* gamma overflow */ 39*1e651e1eSRoland Levillain } else 40*1e651e1eSRoland Levillain return y; 41*1e651e1eSRoland Levillain #endif 42*1e651e1eSRoland Levillain } 43