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1 /* w_hypotl.c -- long double version of w_hypot.c.
2 */
3
4 /*
5 * ====================================================
6 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
7 *
8 * Developed at SunPro, a Sun Microsystems, Inc. business.
9 * Permission to use, copy, modify, and distribute this
10 * software is freely granted, provided that this notice
11 * is preserved.
12 * ====================================================
13 */
14
15 /*
16 * wrapper hypotl(x,y)
17 */
18
19 #include <math.h>
20 #include <math_private.h>
21 #include <math-svid-compat.h>
22 #include <libm-alias-ldouble.h>
23
24
25 #if LIBM_SVID_COMPAT
26 long double
27 __hypotl(long double x, long double y)
28 {
29 long double z;
30 z = __ieee754_hypotl(x,y);
31 if(__builtin_expect(!isfinite(z), 0)
32 && isfinite(x) && isfinite(y) && _LIB_VERSION != _IEEE_)
33 return __kernel_standard_l(x, y, 204); /* hypot overflow */
34
35 return z;
36 }
37 libm_alias_ldouble (__hypot, hypot)
38 #endif