diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128/s_finitel.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_finitel.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_finitel.c b/sysdeps/ieee754/ldbl-128/s_finitel.c new file mode 100644 index 0000000000..dd176c1e7a --- /dev/null +++ b/sysdeps/ieee754/ldbl-128/s_finitel.c @@ -0,0 +1,40 @@ +/* s_finitel.c -- long double version of s_finite.c. + * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz. + */ + +/* + * ==================================================== + * 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: $"; +#endif + +/* + * finitel(x) returns 1 is x is finite, else 0; + * no branching! + */ + +#include "math.h" +#include "math_private.h" + +#ifdef __STDC__ + int __finitel(long double x) +#else + int __finitel(x) + long double x; +#endif +{ + int64_t hx; + GET_LDOUBLE_MSW64(hx,x); + return (int)((u_int64_t)((hx&0x7fffffffffffffffLL) + -0x7fff000000000000LL)>>63); +} +weak_alias (__finitel, finitel) |