--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/cdb++/internal.h	Wed Jan 16 22:39:43 2008 +0100
@@ -0,0 +1,49 @@
+// Copyright (C) 1999,2000 Bruce Guenter <bruceg@em.ca>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+#ifndef CDBXX__INTERNAL__H__
+#define CDBXX__INTERNAL__H__
+
+#include "cdb++.h"
+
+#define CDB_HASHSTART ((uint32) 5381)
+
+inline void pack(unsigned char* buf, uint32 num)
+{
+    *buf++ = num; num >>= 8;
+    *buf++ = num; num >>= 8;
+    *buf++ = num; num >>= 8;
+    *buf = num;
+}
+
+inline uint32 unpack(const unsigned char* p)
+{
+  return uint32(p[0]) |
+    uint32(p[1]) << 8 |
+    uint32(p[2]) << 16 |
+    uint32(p[3]) << 24;
+}
+
+inline uint32 hash(const mystring& s)
+{
+  uint32 h = CDB_HASHSTART;
+  const char* p = s.c_str();
+  for(unsigned len = s.length(); len > 0; len--)
+    h = ((h << 5) + h) ^ *p++;
+  return h;
+}
+
+#endif