1 files changed, 0 insertions, 69 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/e_acoshl.c b/sysdeps/ieee754/ldbl-128ibm/e_acoshl.c
deleted file mode 100644
index 00576c76c8..0000000000
--- a/sysdeps/ieee754/ldbl-128ibm/e_acoshl.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/* @(#)e_acosh.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: e_acosh.c,v 1.9 1995/05/12 04:57:18 jtc Exp $";
-#endif
-
-/* __ieee754_acosh(x)
- * Method :
- *	Based on
- *		acosh(x) = log [ x + sqrt(x*x-1) ]
- *	we have
- *		acosh(x) := log(x)+ln2,	if x is large; else
- *		acosh(x) := log(2x-1/(sqrt(x*x-1)+x)) if x>2; else
- *		acosh(x) := log1p(t+sqrt(2.0*t+t*t)); where t=x-1.
- *
- * Special cases:
- *	acosh(x) is NaN with signal if x<1.
- *	acosh(NaN) is NaN without signal.
- */
-
-#include "math.h"
-#include "math_private.h"
-
-#ifdef __STDC__
-static const long double
-#else
-static long double
-#endif
-one	= 1.0L,
-ln2	= 6.93147180559945286227e-01L;  /* 0x3FE62E42, 0xFEFA39EF */
-
-#ifdef __STDC__
-	long double __ieee754_acoshl(long double x)
-#else
-	long double __ieee754_acoshl(x)
-	long double x;
-#endif
-{
-	long double t;
-	int64_t hx;
-	u_int64_t lx;
-	GET_LDOUBLE_WORDS64(hx,lx,x);
-	if(hx<0x3ff0000000000000LL) {		/* x < 1 */
-	    return (x-x)/(x-x);
-	} else if(hx >=0x41b0000000000000LL) {	/* x > 2**28 */
-	    if(hx >=0x7ff0000000000000LL) {	/* x is inf of NaN */
-	        return x+x;
-	    } else
-		return __ieee754_logl(x)+ln2;	/* acosh(huge)=log(2x) */
-	} else if (((hx-0x3ff0000000000000LL)|(lx&0x7fffffffffffffffLL))==0) {
-	    return 0.0;			/* acosh(1) = 0 */
-	} else if (hx > 0x4000000000000000LL) {	/* 2**28 > x > 2 */
-	    t=x*x;
-	    return __ieee754_logl(2.0*x-one/(x+__ieee754_sqrtl(t-one)));
-	} else {			/* 1<x<2 */
-	    t = x-one;
-	    return __log1p(t+__sqrtl(2.0*t+t*t));
-	}
-}