diff options
Diffstat (limited to 'math/w_sqrtl.c')
| -rw-r--r-- | math/w_sqrtl.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/math/w_sqrtl.c b/math/w_sqrtl.c new file mode 100644 index 0000000..0b03eeb --- /dev/null +++ b/math/w_sqrtl.c @@ -0,0 +1,47 @@ +/* w_sqrtl.c -- long double version of w_sqrt.c. + * Conversion to long double by Ulrich Drepper, + * Cygnus Support, drepper@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: $"; +#endif + +/* + * wrapper sqrtl(x) + */ + +#include <math.h> +#include "math_private.h" + +#ifdef __STDC__ + long double __sqrtl(long double x) /* wrapper sqrtl */ +#else + long double __sqrtl(x) /* wrapper sqrtl */ + long double x; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_sqrtl(x); +#else + long double z; + z = __ieee754_sqrtl(x); + if(_LIB_VERSION == _IEEE_ || __isnanl(x)) return z; + if(x<0.0) { + return __kernel_standard(x,x,226); /* sqrt(negative) */ + } else + return z; +#endif +} +weak_alias (__sqrtl, sqrtl) |