/* vi: set sw=4 ts=4: */ /* sqrtf for uClibc * * Copyright (C) 2002 by Erik Andersen <andersen@uclibc.org> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Library General Public License as published by * the Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License * for more details. * * You should have received a copy of the GNU Library General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* * wrapper for sqrt(x) */ #include "math.h" #include "math_private.h" #ifdef __STDC__ float sqrtf(float x) /* wrapper sqrt */ #else float sqrtf(x) /* wrapper sqrt */ float x; #endif { #ifdef _IEEE_LIBM return __ieee754_sqrt(x); #else float z; z = __ieee754_sqrt(x); if(_LIB_VERSION == _IEEE_ || isnan(x)) return z; if(x<0.0) { return __kernel_standard(x,x,26); /* sqrt(negative) */ } else return z; #endif }