1 files changed, 0 insertions, 139 deletions
diff --git a/newlib/libm/mathfp/e_atanh.c b/newlib/libm/mathfp/e_atanh.c
deleted file mode 100644
index 1ab311d..0000000
--- a/newlib/libm/mathfp/e_atanh.c
+++ /dev/null
@@ -1,139 +0,0 @@
-
-/* @(#)e_atanh.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.
- * ====================================================
- *
- */
-
-/*
-FUNCTION
-        <<atanh>>, <<atanhf>>---inverse hyperbolic tangent
-
-INDEX
-        atanh
-INDEX
-        atanhf
-
-ANSI_SYNOPSIS
-        #include <math.h>
-        double atanh(double <[x]>);
-        float atanhf(float <[x]>);
-
-TRAD_SYNOPSIS
-        #include <math.h>
-        double atanh(<[x]>)
-        double <[x]>;
-
-        float atanhf(<[x]>)
-        float <[x]>;
-
-DESCRIPTION
-        <<atanh>> calculates the inverse hyperbolic tangent of <[x]>.
-
-        <<atanhf>> is identical, other than taking and returning
-        <<float>> values.
-
-RETURNS
-        <<atanh>> and <<atanhf>> return the calculated value.
-
-        If
-        @ifinfo
-        |<[x]>|
-        @end ifinfo
-        @tex
-        $|x|$
-        @end tex
-        is greater than 1, the global <<errno>> is set to <<EDOM>> and
-        the result is a NaN.  A <<DOMAIN error>> is reported.
-
-        If
-        @ifinfo
-        |<[x]>|
-        @end ifinfo
-        @tex
-        $|x|$
-        @end tex
-        is 1, the global <<errno>> is set to <<EDOM>>; and the result is
-        infinity with the same sign as <<x>>.  A <<SING error>> is reported.
-
-        You can modify the error handling for these routines using
-        <<matherr>>.
-
-PORTABILITY
-        Neither <<atanh>> nor <<atanhf>> are ANSI C.
-
-QUICKREF
-        atanh - pure
-        atanhf - pure
-
-
-*/
-
-/* atanh(x)
- * Method :
- *    1.Reduced x to positive by atanh(-x) = -atanh(x)
- *    2.For x>=0.5
- *                  1              2x                          x
- *	atanh(x) = --- * log(1 + -------) = 0.5 * log1p(2 * --------)
- *                  2             1 - x                      1 - x
- *	
- * 	For x<0.5
- *	atanh(x) = 0.5*log1p(2x+2x*x/(1-x))
- *
- * Special cases:
- *	atanh(x) is NaN if |x| > 1 with signal;
- *	atanh(NaN) is that NaN with no signal;
- *	atanh(+-1) is +-INF with signal.
- *
- */
-
-#include "fdlibm.h"
-
-#ifndef _DOUBLE_IS_32BITS
-
-#ifdef __STDC__
-static const double one = 1.0, huge = 1e300;
-#else
-static double one = 1.0, huge = 1e300;
-#endif
-
-#ifdef __STDC__
-static const double zero = 0.0;
-#else
-static double zero = 0.0;
-#endif
-
-#ifdef __STDC__
-	double atanh(double x)
-#else
-	double atanh(x)
-	double x;
-#endif
-{
-	double t;
-	__int32_t hx,ix;
-	__uint32_t lx;
-	EXTRACT_WORDS(hx,lx,x);
-	ix = hx&0x7fffffff;
-	if ((ix|((lx|(-lx))>>31))>0x3ff00000) /* |x|>1 */
-	    return (x-x)/(x-x);
-	if(ix==0x3ff00000) 
-	    return x/zero;
-	if(ix<0x3e300000&&(huge+x)>zero) return x;	/* x<2**-28 */
-	SET_HIGH_WORD(x,ix);
-	if(ix<0x3fe00000) {		/* x < 0.5 */
-	    t = x+x;
-	    t = 0.5*log1p(t+t*x/(one-x));
-	} else 
-	    t = 0.5*log1p((x+x)/(one-x));
-	if(hx>=0) return t; else return -t;
-}
-
-#endif /* defined(_DOUBLE_IS_32BITS) */