Deleted Added
sdiff udiff text old ( 22993 ) new ( 23579 )
full compact
e_acoshf.c (22993) e_acoshf.c (23579)
1/* e_acoshf.c -- float version of e_acosh.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/* e_acoshf.c -- float version of e_acosh.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: e_acoshf.c,v 1.4 1997/02/22 15:09:56 peter Exp $";
18#endif
19
20#include "math.h"
21#include "math_private.h"
22
23#ifdef __STDC__
24static const float
25#else

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

44 if(hx >=0x7f800000) { /* x is inf of NaN */
45 return x+x;
46 } else
47 return __ieee754_logf(x)+ln2; /* acosh(huge)=log(2x) */
48 } else if (hx==0x3f800000) {
49 return 0.0; /* acosh(1) = 0 */
50 } else if (hx > 0x40000000) { /* 2**28 > x > 2 */
51 t=x*x;
18#endif
19
20#include "math.h"
21#include "math_private.h"
22
23#ifdef __STDC__
24static const float
25#else

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

44 if(hx >=0x7f800000) { /* x is inf of NaN */
45 return x+x;
46 } else
47 return __ieee754_logf(x)+ln2; /* acosh(huge)=log(2x) */
48 } else if (hx==0x3f800000) {
49 return 0.0; /* acosh(1) = 0 */
50 } else if (hx > 0x40000000) { /* 2**28 > x > 2 */
51 t=x*x;
52 return __ieee754_logf((float)2.0*x-one/(x+sqrtf(t-one)));
52 return __ieee754_logf((float)2.0*x-one/(x+__ieee754_sqrtf(t-one)));
53 } else { /* 1<x<2 */
54 t = x-one;
53 } else { /* 1<x<2 */
54 t = x-one;
55 return log1pf(t+sqrtf((float)2.0*t+t*t));
55 return log1pf(t+__ieee754_sqrtf((float)2.0*t+t*t));
56 }
57}
56 }
57}