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Diffstat (limited to 'newlib/libm/math/w_atanh.c')
-rw-r--r--newlib/libm/math/w_atanh.c140
1 files changed, 0 insertions, 140 deletions
diff --git a/newlib/libm/math/w_atanh.c b/newlib/libm/math/w_atanh.c
deleted file mode 100644
index b89d4f025..000000000
--- a/newlib/libm/math/w_atanh.c
+++ /dev/null
@@ -1,140 +0,0 @@
-
-/* @(#)w_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
-
-
-*/
-
-/*
- * wrapper atanh(x)
- */
-
-#include "fdlibm.h"
-#include <errno.h>
-
-#ifndef _DOUBLE_IS_32BITS
-
-#ifdef __STDC__
- double atanh(double x) /* wrapper atanh */
-#else
- double atanh(x) /* wrapper atanh */
- double x;
-#endif
-{
-#ifdef _IEEE_LIBM
- return __ieee754_atanh(x);
-#else
- double z,y;
- struct exception exc;
- z = __ieee754_atanh(x);
- if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;
- y = fabs(x);
- if(y>=1.0) {
- if(y>1.0) {
- /* atanh(|x|>1) */
- exc.type = DOMAIN;
- exc.name = "atanh";
- exc.err = 0;
- exc.arg1 = exc.arg2 = x;
- exc.retval = 0.0/0.0;
- if (_LIB_VERSION == _POSIX_)
- errno = EDOM;
- else if (!matherr(&exc)) {
- errno = EDOM;
- }
- } else {
- /* atanh(|x|=1) */
- exc.type = SING;
- exc.name = "atanh";
- exc.err = 0;
- exc.arg1 = exc.arg2 = x;
- exc.retval = x/0.0; /* sign(x)*inf */
- if (_LIB_VERSION == _POSIX_)
- errno = EDOM;
- else if (!matherr(&exc)) {
- errno = EDOM;
- }
- }
- if (exc.err != 0)
- errno = exc.err;
- return exc.retval;
- } else
- return z;
-#endif
-}
-
-#endif /* defined(_DOUBLE_IS_32BITS) */
-
-
-
-