1/*	$NetBSD: w_acosf.c,v 1.8 2024/06/09 13:35:38 riastradh Exp $	*/
2
3/*
4 * w_acosf.c -- float version of w_acos.c.
5 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
6 */
7
8/*
9 * ====================================================
10 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
11 *
12 * Developed at SunPro, a Sun Microsystems, Inc. business.
13 * Permission to use, copy, modify, and distribute this
14 * software is freely granted, provided that this notice
15 * is preserved.
16 * ====================================================
17 */
18
19#include <sys/cdefs.h>
20#if defined(LIBM_SCCS) && !defined(lint)
21__RCSID("$NetBSD: w_acosf.c,v 1.8 2024/06/09 13:35:38 riastradh Exp $");
22#endif
23
24/*
25 * wrap_acosf(x)
26 */
27
28#include "namespace.h"
29
30#include "math.h"
31#include "math_private.h"
32
33__weak_alias(acosf, _acosf)
34
35float
36acosf(float x)		/* wrapper acosf */
37{
38#ifdef _IEEE_LIBM
39	return __ieee754_acosf(x);
40#else
41	float z;
42	z = __ieee754_acosf(x);
43	if(_LIB_VERSION == _IEEE_ || isnanf(x)) return z;
44	if(fabsf(x)>(float)1.0) {
45	        /* acosf(|x|>1) */
46	        return (float)__kernel_standard((double)x,(double)x,101);
47	} else
48	    return z;
49#endif
50}
51