1 /* w_hypotf.c -- float version of w_hypot.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3 */
4
5 /*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
8 *
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
12 * is preserved.
13 * ====================================================
14 */
15
16 /*
17 * wrapper hypotf(x,y)
18 */
19
20 #include <math.h>
21 #include "math_private.h"
22
23 float
hypotf(float x,float y)24 hypotf(float x, float y)
25 {
26 #if defined(__UCLIBC_HAS_FENV__)
27 float z = (float) __ieee754_hypot((double) x, (double) y);
28 if(__builtin_expect(!isfinite(z), 0)
29 && isfinite(x) && isfinite(y) && _LIB_VERSION != _IEEE_)
30 /* hypot overflow */
31 return __kernel_standard_f(x, y, 104);
32
33 return z;
34 #else
35 return (float) __ieee754_hypot((double) x, (double) y);
36 #endif
37 }
38