* libc/sys/linux/cmath: New directory.

	* libc/sys/linux/include/cmathcalls.h: New file.
	* libc/sys/linux/include/complex.h: New file.
	* libc/sys/linux/machine/i386/huge_val.h: New file
	* libm/math/w_sincos.c: New file
	* libm/math/wf_sincos.c: New file
	* libm/mathfp/s_sincos.c: New file
	* libm/mathfp/sf_sincos.c: New file
	* Makefile.am (LIBC_OBJECTLISTS): Add cmath/objectlist.awk.in.
	* libc/include/math.h: Add sincos and sincosf declarations.
	* libc/sys/linux/Makefile.am (SUBDIRS): Add cmath.
	(SUBLIBS): Likewise.
	* libc/sys/linux/configure.in (AC_OUTPUT): Add cmath.
	* libm/math/Makefile.am (src): Add w_sincos.c.
	(fsrc): Add wf_sincos.c.
	* libm/mathfp/Makefile.am (src): Add s_sincos.c
	(fsrc): Add sf_sincos.c.

1 files changed, 80 insertions, 0 deletions

diff --git a/newlib/libc/sys/linux/cmath/s_catanhf.c b/newlib/libc/sys/linux/cmath/s_catanhf.c
new file mode 100644
index 000000000..30a5a1b8a
--- /dev/null
+++ b/newlib/libc/sys/linux/cmath/s_catanhf.c
@@ -0,0 +1,80 @@
+/* Return arc hyperbole tangent for float value.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <complex.h>
+#include <math.h>
+
+#include "math_private.h"
+
+
+__complex__ float
+__catanhf (__complex__ float x)
+{
+  __complex__ float res;
+  int rcls = fpclassify (__real__ x);
+  int icls = fpclassify (__imag__ x);
+
+  if (rcls <= FP_INFINITE || icls <= FP_INFINITE)
+    {
+      if (icls == FP_INFINITE)
+	{
+	  __real__ res = __copysignf (0.0, __real__ x);
+	  __imag__ res = __copysignf (M_PI_2, __imag__ x);
+	}
+      else if (rcls == FP_INFINITE || rcls == FP_ZERO)
+	{
+	  __real__ res = __copysignf (0.0, __real__ x);
+	  if (icls >= FP_ZERO)
+	    __imag__ res = __copysignf (M_PI_2, __imag__ x);
+	  else
+	    __imag__ res = __nanf ("");
+	}
+      else
+	{
+	  __real__ res = __nanf ("");
+	  __imag__ res = __nanf ("");
+	}
+    }
+  else if (rcls == FP_ZERO && icls == FP_ZERO)
+    {
+      res = x;
+    }
+  else
+    {
+      float i2, num, den;
+
+      i2 = __imag__ x * __imag__ x;
+
+      num = 1.0 + __real__ x;
+      num = i2 + num * num;
+
+      den = 1.0 - __real__ x;
+      den = i2 + den * den;
+
+      __real__ res = 0.25 * (__ieee754_logf (num) - __ieee754_logf (den));
+
+      den = 1 - __real__ x * __real__ x - i2;
+
+      __imag__ res = 0.5 * __ieee754_atan2f (2.0 * __imag__ x, den);
+    }
+
+  return res;
+}
+weak_alias (__catanhf, catanhf)