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Diffstat (limited to 'math/w_lgamma_r.c')
| -rw-r--r-- | math/w_lgamma_r.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/math/w_lgamma_r.c b/math/w_lgamma_r.c new file mode 100644 index 0000000000..17a7d013e9 --- /dev/null +++ b/math/w_lgamma_r.c @@ -0,0 +1,51 @@ +/* @(#)wr_lgamma.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. + * ==================================================== + */ + +#if defined(LIBM_SCCS) && !defined(lint) +static char rcsid[] = "$NetBSD: w_lgamma_r.c,v 1.6 1995/05/10 20:49:27 jtc Exp $"; +#endif + +/* + * wrapper double lgamma_r(double x, int *signgamp) + */ + +#include <math.h> +#include "math_private.h" + + +#ifdef __STDC__ + double __lgamma_r(double x, int *signgamp) /* wrapper lgamma_r */ +#else + double __lgamma_r(x,signgamp) /* wrapper lgamma_r */ + double x; int *signgamp; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_lgamma_r(x,signgamp); +#else + double y; + y = __ieee754_lgamma_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,15); /* lgamma pole */ + else + return __kernel_standard(x,x,14); /* lgamma overflow */ + } else + return y; +#endif +} +weak_alias (__lgamma_r, lgamma_r) +#ifdef NO_LONG_DOUBLE +strong_alias (__lgamma_r, __lgammal_r) +weak_alias (__lgamma_r, lgammal_r) +#endif |