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-rw-r--r--REORG.TODO/math/s_fdim_template.c40
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diff --git a/REORG.TODO/math/s_fdim_template.c b/REORG.TODO/math/s_fdim_template.c
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+/* Return positive difference between arguments.
+   Copyright (C) 1997-2017 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 <errno.h>
+#include <math.h>
+#include <math_private.h>
+
+FLOAT
+M_DECL_FUNC (__fdim) (FLOAT x, FLOAT y)
+{
+  if (islessequal (x, y))
+    return 0;
+
+  FLOAT r = math_narrow_eval (x - y);
+  if (isinf (r) && !isinf (x) && !isinf (y))
+    __set_errno (ERANGE);
+
+  return r;
+}
+declare_mgen_alias (__fdim, fdim);
+
+#if M_LIBM_NEED_COMPAT (fdim)
+declare_mgen_libm_compat (__fdim, fdim)
+#endif