| |
| /* @(#)er_gamma.c 5.1 93/09/24 */ |
| /* |
| * ==================================================== |
| * 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. |
| * ==================================================== |
| * |
| */ |
| |
| /* gamma_r(x, signgamp) |
| * Reentrant version of the logarithm of the Gamma function |
| * with user provide pointer for the sign of Gamma(x). |
| * |
| * Method: See lgamma_r |
| */ |
| |
| #include "fdlibm.h" |
| |
| #ifdef __STDC__ |
| double gamma_r(double x, int *signgamp) |
| #else |
| double gamma_r(x,signgamp) |
| double x; int *signgamp; |
| #endif |
| { |
| return exp (lgamma_r(x,signgamp)); |
| } |
| |
| double gamma(double x) |
| { |
| return gamma_r(x, &(_REENT_SIGNGAM(_REENT))); |
| } |
