| /* @(#)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. |
| * ==================================================== |
| */ |
| |
| /* |
| * wrapper hypot(x,y) |
| */ |
| |
| #include <math.h> |
| #include <math_private.h> |
| #include <math-svid-compat.h> |
| #include <libm-alias-double.h> |
| |
| |
| #if LIBM_SVID_COMPAT |
| double |
| __hypot (double x, double y) |
| { |
| double z = __ieee754_hypot(x,y); |
| if(__builtin_expect(!isfinite(z), 0) |
| && isfinite(x) && isfinite(y) && _LIB_VERSION != _IEEE_) |
| return __kernel_standard(x, y, 4); /* hypot overflow */ |
| |
| return z; |
| } |
| libm_alias_double (__hypot, hypot) |
| #endif |
