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s_asinhf.c (22993) s_asinhf.c (23579)
1/* s_asinhf.c -- float version of s_asinh.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#ifndef lint
1/* s_asinhf.c -- float version of s_asinh.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#ifndef lint
17static char rcsid[] = "$Id$";
17static char rcsid[] = "$Id: s_asinhf.c,v 1.4 1997/02/22 15:10:57 peter Exp $";
18#endif
19
20#include "math.h"
21#include "math_private.h"
22
23#ifdef __STDC__
24static const float
25#else

--- 17 unchanged lines hidden (view full) ---

43 if(ix>=0x7f800000) return x+x; /* x is inf or NaN */
44 if(ix< 0x31800000) { /* |x|<2**-28 */
45 if(huge+x>one) return x; /* return x inexact except 0 */
46 }
47 if(ix>0x4d800000) { /* |x| > 2**28 */
48 w = __ieee754_logf(fabsf(x))+ln2;
49 } else if (ix>0x40000000) { /* 2**28 > |x| > 2.0 */
50 t = fabsf(x);
18#endif
19
20#include "math.h"
21#include "math_private.h"
22
23#ifdef __STDC__
24static const float
25#else

--- 17 unchanged lines hidden (view full) ---

43 if(ix>=0x7f800000) return x+x; /* x is inf or NaN */
44 if(ix< 0x31800000) { /* |x|<2**-28 */
45 if(huge+x>one) return x; /* return x inexact except 0 */
46 }
47 if(ix>0x4d800000) { /* |x| > 2**28 */
48 w = __ieee754_logf(fabsf(x))+ln2;
49 } else if (ix>0x40000000) { /* 2**28 > |x| > 2.0 */
50 t = fabsf(x);
51 w = __ieee754_logf((float)2.0*t+one/(sqrtf(x*x+one)+t));
51 w = __ieee754_logf((float)2.0*t+one/(__ieee754_sqrtf(x*x+one)+t));
52 } else { /* 2.0 > |x| > 2**-28 */
53 t = x*x;
52 } else { /* 2.0 > |x| > 2**-28 */
53 t = x*x;
54 w =log1pf(fabsf(x)+t/(one+sqrtf(one+t)));
54 w =log1pf(fabsf(x)+t/(one+__ieee754_sqrtf(one+t)));
55 }
56 if(hx>0) return w; else return -w;
57}
55 }
56 if(hx>0) return w; else return -w;
57}