diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_asinhl.c')
-rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_asinhl.c | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c b/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c deleted file mode 100644 index d1b63bb909..0000000000 --- a/sysdeps/ieee754/ldbl-128ibm/s_asinhl.c +++ /dev/null @@ -1,67 +0,0 @@ -/* @(#)s_asinh.c 5.1 93/09/24 */ -/* - * ==================================================== - * 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: s_asinh.c,v 1.9 1995/05/12 04:57:37 jtc Exp $"; -#endif - -/* asinh(x) - * Method : - * Based on - * asinh(x) = sign(x) * log [ |x| + sqrt(x*x+1) ] - * we have - * asinh(x) := x if 1+x*x=1, - * := sign(x)*(log(x)+ln2)) for large |x|, else - * := sign(x)*log(2|x|+1/(|x|+sqrt(x*x+1))) if|x|>2, else - * := sign(x)*log1p(|x| + x^2/(1 + sqrt(1+x^2))) - */ - -#include "math.h" -#include "math_private.h" -#include <math_ldbl_opt.h> - -#ifdef __STDC__ -static const long double -#else -static long double -#endif -one = 1.00000000000000000000e+00L, /* 0x3ff0000000000000, 0 */ -ln2 = 0.6931471805599453094172321214581766L, /* 0x3fe62e42fefa39ef, 0x3c7abc9e3b398040 */ -huge= 1.00000000000000000000e+300L; - -#ifdef __STDC__ - long double __asinhl(long double x) -#else - long double __asinhl(x) - long double x; -#endif -{ - long double t,w; - int64_t hx,ix; - GET_LDOUBLE_MSW64(hx,x); - ix = hx&0x7fffffffffffffffLL; - if(ix>=0x7ff0000000000000LL) return x+x; /* x is inf or NaN */ - if(ix< 0x3e20000000000000LL) { /* |x|<2**-29 */ - if(huge+x>one) return x; /* return x inexact except 0 */ - } - if(ix>0x41b0000000000000LL) { /* |x| > 2**28 */ - w = __ieee754_logl(fabs(x))+ln2; - } else if (ix>0x4000000000000000LL) { /* 2**28 > |x| > 2.0 */ - t = fabs(x); - w = __ieee754_logl(2.0*t+one/(__ieee754_sqrtl(x*x+one)+t)); - } else { /* 2.0 > |x| > 2**-29 */ - t = x*x; - w =__log1pl(fabsl(x)+t/(one+__ieee754_sqrtl(one+t))); - } - if(hx>0) return w; else return -w; -} -long_double_symbol (libm, __asinhl, asinhl); |