home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
- /* @(#)w_hypot.c 5.1 93/09/24 */
- /*
- * ====================================================
- * 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[] = "$Id: w_hypot.c,v 1.4 1994/08/10 20:34:24 jtc Exp $";
- #endif
-
- /*
- * wrapper hypot(x,y)
- */
-
- #include "math.h"
- #include "math_private.h"
-
-
- #ifdef __STDC__
- double hypot(double x, double y)/* wrapper hypot */
- #else
- double hypot(x,y) /* wrapper hypot */
- double x,y;
- #endif
- {
- #ifdef _IEEE_LIBM
- return __ieee754_hypot(x,y);
- #else
- double z;
- z = __ieee754_hypot(x,y);
- if(_LIB_VERSION == _IEEE_) return z;
- if((!finite(z))&&finite(x)&&finite(y))
- return __kernel_standard(x,y,4); /* hypot overflow */
- else
- return z;
- #endif
- }
-