Merge commit 'origin/master' into fedora/master
[glibc.git] / math / w_acosl.c
blob9ab4de899fb64f6e09d5b44a5d98f2e8cf5a1656
1 /* w_acosl.c -- long double version of w_acos.c.
2 * Conversion to long double by Ulrich Drepper,
3 * Cygnus Support, drepper@cygnus.com.
4 */
6 /*
7 * ====================================================
8 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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 * ====================================================
17 #if defined(LIBM_SCCS) && !defined(lint)
18 static char rcsid[] = "$NetBSD: $";
19 #endif
22 * wrap_acosl(x)
25 #include <math.h>
26 #include "math_private.h"
29 #ifdef __STDC__
30 long double __acosl(long double x) /* wrapper acos */
31 #else
32 long double __acosl(x) /* wrapper acos */
33 long double x;
34 #endif
36 #ifdef _IEEE_LIBM
37 return __ieee754_acosl(x);
38 #else
39 long double z;
40 z = __ieee754_acosl(x);
41 if(_LIB_VERSION == _IEEE_ || __isnanl(x)) return z;
42 if(fabsl(x)>1.0) {
43 return __kernel_standard(x,x,201); /* acosl(|x|>1) */
44 } else
45 return z;
46 #endif
48 weak_alias (__acosl, acosl)