diff options
Diffstat (limited to 'libm/src/w_gamma_r.c')
-rw-r--r-- | libm/src/w_gamma_r.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/libm/src/w_gamma_r.c b/libm/src/w_gamma_r.c new file mode 100644 index 0000000..0e0fe84 --- /dev/null +++ b/libm/src/w_gamma_r.c @@ -0,0 +1,42 @@ + +/* @(#)w_gamma_r.c 1.3 95/01/18 */ +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunSoft, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +/* + * wrapper double gamma_r(double x, int *signgamp) + */ + +#include "fdlibm.h" + + +#ifdef __STDC__ + double gamma_r(double x, int *signgamp) /* wrapper lgamma_r */ +#else + double gamma_r(x,signgamp) /* wrapper lgamma_r */ + double x; int *signgamp; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_gamma_r(x,signgamp); +#else + double y; + y = __ieee754_gamma_r(x,signgamp); + if(_LIB_VERSION == _IEEE_) return y; + if(!finite(y)&&finite(x)) { + if(floor(x)==x&&x<=0.0) + return __kernel_standard(x,x,41); /* gamma pole */ + else + return __kernel_standard(x,x,40); /* gamma overflow */ + } else + return y; +#endif +} |