1 files changed, 69 insertions, 0 deletions
diff --git a/libstdc++-v3/math/ccosl.c b/libstdc++-v3/math/ccosl.c
new file mode 100644
index 0000000..6531476
--- /dev/null
+++ b/libstdc++-v3/math/ccosl.c
@@ -0,0 +1,69 @@
+/* Return cosine of complex long double value. */
+
+/* Copyright (C) 1997-1999 Free Software Foundation, Inc.
+
+   This file is part of the GNU ISO C++ Library.  This library is free
+   software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this library; see the file COPYING.  If not, write to the Free
+   Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+   USA.
+
+   As a special exception, you may use this file as part of a free software
+   library without restriction.  Specifically, if other files instantiate
+   templates or use macros or inline functions from this file, or you compile
+   this file and link it with other files to produce an executable, this
+   file does not by itself cause the resulting executable to be covered by
+   the GNU General Public License.  This exception does not however
+   invalidate any other reasons why the executable file might be covered by
+   the GNU General Public License.  */
+
+
+#include <math.h>
+#include "mathconf.h"
+
+
+__complex__ long double
+ccosl (__complex__ long double x)
+{
+  __complex__ long double res;
+
+  if (!FINITEL_P (__real__ x) || __imag__ x != __imag__ x)
+    {
+      if (__real__ x == 0.0 || __imag__ x == 0.0)
+	{
+	  __real__ res = NAN;
+	  __imag__ res = 0.0;
+	}
+      else if (INFINITEL_P (__imag__ x))
+	{
+	  __real__ res = HUGE_VALL;
+	  __imag__ res = NAN;
+	}
+      else
+	{
+	  __real__ res = NAN;
+	  __imag__ res = NAN;
+	}
+    }
+  else
+    {
+      __complex__ long double y;
+
+      __real__ y = -__imag__ x;
+      __imag__ y = __real__ x;
+
+      res = ccoshl (y);
+    }
+
+  return res;
+}