diff options
Diffstat (limited to 'sysdeps/generic/w_lgammaf_r.c')
| -rw-r--r-- | sysdeps/generic/w_lgammaf_r.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/sysdeps/generic/w_lgammaf_r.c b/sysdeps/generic/w_lgammaf_r.c new file mode 100644 index 0000000000..66962acc7e --- /dev/null +++ b/sysdeps/generic/w_lgammaf_r.c @@ -0,0 +1,52 @@ +/* w_lgammaf_r.c -- float version of w_lgamma_r.c. + * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. + */ + +/* + * ==================================================== + * 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_lgammaf_r.c,v 1.3 1995/05/10 20:49:32 jtc Exp $"; +#endif + +/* + * wrapper float lgammaf_r(float x, int *signgamp) + */ + +#include "math.h" +#include "math_private.h" + + +#ifdef __STDC__ + float __lgammaf_r(float x, int *signgamp) /* wrapper lgammaf_r */ +#else + float __lgammaf_r(x,signgamp) /* wrapper lgammaf_r */ + float x; int *signgamp; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_lgammaf_r(x,signgamp); +#else + float y; + y = __ieee754_lgammaf_r(x,signgamp); + if(_LIB_VERSION == _IEEE_) return y; + if(!__finitef(y)&&__finitef(x)) { + if(__floorf(x)==x&&x<=(float)0.0) + /* lgamma pole */ + return (float)__kernel_standard((double)x,(double)x,115); + else + /* lgamma overflow */ + return (float)__kernel_standard((double)x,(double)x,114); + } else + return y; +#endif +} +weak_alias (__lgammaf_r, lgammaf_r) |