1 files changed, 32 insertions, 0 deletions
diff --git a/string/swab.c b/string/swab.c
new file mode 100644
index 0000000000..350d9a3303
--- /dev/null
+++ b/string/swab.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1992 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <stddef.h>
+
+void
+DEFUN(swab, (from, to, n),
+      CONST char *from AND char *to AND size_t n)
+{
+  while (n > 1)
+    {
+      CONST char b0 = from[--n], b1 = from[--n];
+      to[n] = b0;
+      to[n + 1] = b1;
+    }
+}