summary refs log tree commit diff
path: root/math/w_hypotl.c
blob: c784fa2c64214aabeb41e78807d4d7c33b88a637 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/* w_hypotl.c -- long double version of w_hypot.c.
 * Conversion to long double by Ulrich Drepper,
 * Cygnus Support, drepper@cygnus.com.
 */

/*
 * ====================================================
 * 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 hypotl(x,y)
 */

#include <math.h>
#include <math_private.h>


long double
__hypotl(long double x, long double y)
{
	long double z;
	z = __ieee754_hypotl(x,y);
	if(__builtin_expect(!isfinite(z), 0)
	   && isfinite(x) && isfinite(y) && _LIB_VERSION != _IEEE_)
	    return __kernel_standard_l(x, y, 204); /* hypot overflow */

	return z;
}
weak_alias (__hypotl, hypotl)