diff options
Diffstat (limited to 'sysdeps/libm-ieee754/e_atanhf.c')
| -rw-r--r-- | sysdeps/libm-ieee754/e_atanhf.c | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/sysdeps/libm-ieee754/e_atanhf.c b/sysdeps/libm-ieee754/e_atanhf.c deleted file mode 100644 index f26a15bbc1..0000000000 --- a/sysdeps/libm-ieee754/e_atanhf.c +++ /dev/null @@ -1,58 +0,0 @@ -/* e_atanhf.c -- float version of e_atanh.c. - * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. - */ - -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: e_atanhf.c,v 1.4 1995/05/10 20:44:56 jtc Exp $"; -#endif - -#include "math.h" -#include "math_private.h" - -#ifdef __STDC__ -static const float one = 1.0, huge = 1e30; -#else -static float one = 1.0, huge = 1e30; -#endif - -#ifdef __STDC__ -static const float zero = 0.0; -#else -static float zero = 0.0; -#endif - -#ifdef __STDC__ - float __ieee754_atanhf(float x) -#else - float __ieee754_atanhf(x) - float x; -#endif -{ - float t; - int32_t hx,ix; - GET_FLOAT_WORD(hx,x); - ix = hx&0x7fffffff; - if (ix>0x3f800000) /* |x|>1 */ - return (x-x)/(x-x); - if(ix==0x3f800000) - return x/zero; - if(ix<0x31800000&&(huge+x)>zero) return x; /* x<2**-28 */ - SET_FLOAT_WORD(x,ix); - if(ix<0x3f000000) { /* x < 0.5 */ - t = x+x; - t = (float)0.5*__log1pf(t+t*x/(one-x)); - } else - t = (float)0.5*__log1pf((x+x)/(one-x)); - if(hx>=0) return t; else return -t; -} |