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[glibc/history.git] / math / w_asinf.c
blobb19b5c54e3db60f4081bcac97e65c60c041a8ed5
1 /* w_asinf.c -- float version of w_asin.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3 */
5 /*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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 * ====================================================
16 #if defined(LIBM_SCCS) && !defined(lint)
17 static char rcsid[] = "$NetBSD: w_asinf.c,v 1.3 1995/05/10 20:48:37 jtc Exp $";
18 #endif
20 /*
21 * wrapper asinf(x)
25 #include <math.h>
26 #include "math_private.h"
29 #ifdef __STDC__
30 float __asinf(float x) /* wrapper asinf */
31 #else
32 float __asinf(x) /* wrapper asinf */
33 float x;
34 #endif
36 #ifdef _IEEE_LIBM
37 return __ieee754_asinf(x);
38 #else
39 float z;
40 z = __ieee754_asinf(x);
41 if(_LIB_VERSION == _IEEE_ || __isnanf(x)) return z;
42 if(fabsf(x)>(float)1.0) {
43 /* asinf(|x|>1) */
44 return (float)__kernel_standard((double)x,(double)x,102);
45 } else
46 return z;
47 #endif
49 weak_alias (__asinf, asinf)