Prepare to convert _Complex cosine functions

This patch has no function changes, except to
ensure the git history correctly tracks the
changes to convert the double version of these
functions into a templated version.

1 files changed, 40 insertions, 0 deletions

diff --git a/math/s_ccos_template.c b/math/s_ccos_template.c
new file mode 100644
index 0000000000..e484551aee
--- /dev/null
+++ b/math/s_ccos_template.c
@@ -0,0 +1,40 @@
+/* Return cosine of complex double value.
+   Copyright (C) 1997-2016 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <complex.h>
+#include <fenv.h>
+#include <math.h>
+#include <math_private.h>
+
+
+__complex__ double
+__ccos (__complex__ double x)
+{
+  __complex__ double y;
+
+  __real__ y = -__imag__ x;
+  __imag__ y = __real__ x;
+
+  return __ccosh (y);
+}
+weak_alias (__ccos, ccos)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__ccos, __ccosl)
+weak_alias (__ccos, ccosl)
+#endif