1 files changed, 44 insertions, 0 deletions
diff --git a/math/s_cproj_template.c b/math/s_cproj_template.c
new file mode 100644
index 0000000000..d47f009502
--- /dev/null
+++ b/math/s_cproj_template.c
@@ -0,0 +1,44 @@
+/* Compute projection of complex double value to Riemann sphere.
+   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 <math.h>
+#include <math_private.h>
+
+
+__complex__ double
+__cproj (__complex__ double x)
+{
+  if (isinf (__real__ x) || isinf (__imag__ x))
+    {
+      __complex__ double res;
+
+      __real__ res = INFINITY;
+      __imag__ res = __copysign (0.0, __imag__ x);
+
+      return res;
+    }
+
+  return x;
+}
+weak_alias (__cproj, cproj)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__cproj, __cprojl)
+weak_alias (__cproj, cprojl)
+#endif