diff options
Diffstat (limited to 'native/fdlibm/w_sqrt.c')
| -rw-r--r-- | native/fdlibm/w_sqrt.c | 61 |
1 files changed, 3 insertions, 58 deletions
diff --git a/native/fdlibm/w_sqrt.c b/native/fdlibm/w_sqrt.c index 23a793ce7..4dd589e25 100644 --- a/native/fdlibm/w_sqrt.c +++ b/native/fdlibm/w_sqrt.c @@ -1,58 +1,21 @@ -/* @(#)w_sqrt.c 5.1 93/09/24 */ +/* @(#)w_sqrt.c 1.3 95/01/18 */ /* * ==================================================== * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. * - * Developed at SunPro, a Sun Microsystems, Inc. business. + * Developed at SunSoft, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this * software is freely granted, provided that this notice * is preserved. * ==================================================== */ -/* -FUNCTION - <<sqrt>>, <<sqrtf>>---positive square root - -INDEX - sqrt -INDEX - sqrtf - -ANSI_SYNOPSIS - #include <math.h> - double sqrt(double <[x]>); - float sqrtf(float <[x]>); - -TRAD_SYNOPSIS - #include <math.h> - double sqrt(<[x]>); - float sqrtf(<[x]>); - -DESCRIPTION - <<sqrt>> computes the positive square root of the argument. - You can modify error handling for this function with - <<matherr>>. - -RETURNS - On success, the square root is returned. If <[x]> is real and - positive, then the result is positive. If <[x]> is real and - negative, the global value <<errno>> is set to <<EDOM>> (domain error). - - -PORTABILITY - <<sqrt>> is ANSI C. <<sqrtf>> is an extension. -*/ - /* * wrapper sqrt(x) */ #include "fdlibm.h" -#include <errno.h> - -#ifndef _DOUBLE_IS_32BITS #ifdef __STDC__ double sqrt(double x) /* wrapper sqrt */ @@ -64,30 +27,12 @@ PORTABILITY #ifdef _IEEE_LIBM return __ieee754_sqrt(x); #else - struct exception exc; double z; z = __ieee754_sqrt(x); if(_LIB_VERSION == _IEEE_ || isnan(x)) return z; if(x<0.0) { - exc.type = DOMAIN; - exc.name = "sqrt"; - exc.err = 0; - exc.arg1 = exc.arg2 = x; - if (_LIB_VERSION == _SVID_) - exc.retval = 0.0; - else - exc.retval = 0.0/0.0; - if (_LIB_VERSION == _POSIX_) - errno = EDOM; - else if (!matherr(&exc)) { - errno = EDOM; - } - if (exc.err != 0) - errno = exc.err; - return exc.retval; + return __kernel_standard(x,x,26); /* sqrt(negative) */ } else return z; #endif } - -#endif /* defined(_DOUBLE_IS_32BITS) */ |