1 files changed, 37 insertions, 0 deletions
diff --git a/math/s_canonicalize_template.c b/math/s_canonicalize_template.c
new file mode 100644
index 0000000000..fa06f5c083
--- /dev/null
+++ b/math/s_canonicalize_template.c
@@ -0,0 +1,37 @@
+/* Canonicalize floating-point representation.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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 <math.h>
+
+int
+M_DECL_FUNC (__canonicalize) (FLOAT *cx, const FLOAT *x)
+{
+  FLOAT val = *x;
+  /* For all binary formats supported by glibc, iscanonical only fails
+     if the representation is not a valid representation of the type,
+     so the only work to do is for signaling NaNs.  */
+  if (!iscanonical (val))
+    return 1;
+  if (issignaling (val))
+    *cx = val + val;
+  else
+    *cx = val;
+  return 0;
+}
+
+declare_mgen_alias (__canonicalize, canonicalize)