1 files changed, 87 insertions, 0 deletions
diff --git a/REORG.TODO/wcsmbs/wcpncpy.c b/REORG.TODO/wcsmbs/wcpncpy.c
new file mode 100644
index 0000000000..42c17eadd0
--- /dev/null
+++ b/REORG.TODO/wcsmbs/wcpncpy.c
@@ -0,0 +1,87 @@
+/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
+
+   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 <wchar.h>
+
+#ifdef WCPNCPY
+# define __wcpncpy WCPNCPY
+#endif
+
+/* Copy no more than N wide-characters of SRC to DEST, returning the
+   address of the last character written into DEST.  */
+wchar_t *
+__wcpncpy (wchar_t *dest, const wchar_t *src, size_t n)
+{
+  wint_t c;
+  wchar_t *const s = dest;
+
+  if (n >= 4)
+    {
+      size_t n4 = n >> 2;
+
+      for (;;)
+	{
+	  c = *src++;
+	  *dest++ = c;
+	  if (c == L'\0')
+	    break;
+	  c = *src++;
+	  *dest++ = c;
+	  if (c == L'\0')
+	    break;
+	  c = *src++;
+	  *dest++ = c;
+	  if (c == L'\0')
+	    break;
+	  c = *src++;
+	  *dest++ = c;
+	  if (c == L'\0')
+	    break;
+	  if (--n4 == 0)
+	    goto last_chars;
+	}
+      n -= dest - s;
+      goto zero_fill;
+    }
+
+ last_chars:
+  n &= 3;
+  if (n == 0)
+    return dest;
+
+  for (;;)
+    {
+      c = *src++;
+      --n;
+      *dest++ = c;
+      if (c == L'\0')
+	break;
+      if (n == 0)
+	return dest;
+    }
+
+ zero_fill:
+  while (n-- > 0)
+    dest[n] = L'\0';
+
+  return dest - 1;
+}
+
+#ifndef WCPNCPY
+weak_alias (__wcpncpy, wcpncpy)
+#endif