PR fortran/46416

	* quadmath.h (cacosq, cacoshq, casinq, casinhq, catanq, catanhq):
	New prototypes.
	(M_Eq, M_LOG2Eq, M_LOG10Eq, M_LN2q, M_LN10q, M_PIq, M_PI_2q, M_PI_4q,
	M_1_PIq, M_2_PIq, M_2_SQRTPIq, M_SQRT2q, M_SQRT1_2q): Define.
	* quadmath_weak.h (cacosq, cacoshq, casinq, casinhq, catanq,
	catanhq): Add.
	* quadmath-imp.h (fpclassifyq, QUADFP_NAN, QUADFP_INFINITE,
	QUADFP_ZERO, QUADFP_SUBNORMAL, QUADFP_NORMAL): Define.
	* quadmath.map (QUADMATH_1.0): Add cacosq, cacoshq, casinq, casinhq,
	catanq and catanhq.
	* Makefile.am (libquadmath_la_SOURCES): Add math/cacosq.c,
	math/cacoshq.c, math/casinq.c, math/casinhq.c, math/catanq.c
	and math/catanhq.c.
	* Makefile.in: Regenerated.
	* libquadmath.texi (cacosq, cacoshq, casinq, casinhq,
	catanq, catanhq): Add.
	* math/cacoshq.c: New file.
	* math/cacosq.c: New file.
	* math/catanq.c: New file.
	* math/catanhq.c: New file.
	* math/casinq.c: New file.
	* math/casinhq.c: New file.

	* math/hypotq.c (hypotq): Use Q suffix instead of L.
	* math/atan2q.c (tiny, pi_o_4, pi_o_2, pi, pi_lo, atan2q): Likewise.
	* math/cosq.c (cosq): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168853 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 76 insertions, 0 deletions

diff --git a/libquadmath/math/catanhq.c b/libquadmath/math/catanhq.c
new file mode 100644
index 00000000000..6a86e2d0202
--- /dev/null
+++ b/libquadmath/math/catanhq.c
@@ -0,0 +1,76 @@
+/* Return arc hyperbole tangent for __float128 value.
+   Copyright (C) 1997, 1998 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 "quadmath-imp.h"
+
+
+__complex128
+catanhq (__complex128 x)
+{
+  __complex128 res;
+  int rcls = fpclassifyq (__real__ x);
+  int icls = fpclassifyq (__imag__ x);
+
+  if (rcls <= QUADFP_INFINITE || icls <= QUADFP_INFINITE)
+    {
+      if (icls == QUADFP_INFINITE)
+	{
+	  __real__ res = copysignq (0.0, __real__ x);
+	  __imag__ res = copysignq (M_PI_2q, __imag__ x);
+	}
+      else if (rcls == QUADFP_INFINITE || rcls == QUADFP_ZERO)
+	{
+	  __real__ res = copysignq (0.0, __real__ x);
+	  if (icls >= QUADFP_ZERO)
+	    __imag__ res = copysignq (M_PI_2q, __imag__ x);
+	  else
+	    __imag__ res = nanq ("");
+	}
+      else
+	{
+	  __real__ res = nanq ("");
+	  __imag__ res = nanq ("");
+	}
+    }
+  else if (rcls == QUADFP_ZERO && icls == QUADFP_ZERO)
+    {
+      res = x;
+    }
+  else
+    {
+      __float128 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 * (logq (num) - logq (den));
+
+      den = 1 - __real__ x * __real__ x - i2;
+
+      __imag__ res = 0.5 * atan2q (2.0 * __imag__ x, den);
+    }
+
+  return res;
+}