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glibc/math/w_sqrtl.c
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| /* 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) |