1 /* w_hypotl.c -- long double version of w_hypot.c.
2 * Conversion to long double by Ulrich Drepper,
3 * Cygnus Support, drepper@cygnus.com.
4 */
5
6 /*
7 * ====================================================
8 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
9 *
10 * Developed at SunPro, a Sun Microsystems, Inc. business.
11 * Permission to use, copy, modify, and distribute this
12 * software is freely granted, provided that this notice
13 * is preserved.
14 * ====================================================
15 */
16
17 /*
18 * wrapper hypotl(x,y)
19 */
20
21 #include <math.h>
22 #include "math_private.h"
23
24 #if !defined __NO_LONG_DOUBLE_MATH
25 long double
hypotl(long double x,long double y)26 hypotl(long double x, long double y)
27 {
28 # if defined(__UCLIBC_HAS_FENV__)
29 long double z;
30 z = (long double) __ieee754_hypot((double) x, (double) 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 # else
37 return (long double) __ieee754_hypot((double) x, (double) y);
38 # endif /* __UCLIBC_HAS_FENV__ */
39 }
40 #endif /* __NO_LONG_DOUBLE_MATH */
41