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diff --git a/src/stlplus/persistence/persistent_bool.cpp b/src/stlplus/persistence/persistent_bool.cpp
new file mode 100644
index 0000000..dde1828
--- /dev/null
+++ b/src/stlplus/persistence/persistent_bool.cpp
@@ -0,0 +1,24 @@
+////////////////////////////////////////////////////////////////////////////////
+
+//   Author:    Andy Rushton
+//   Copyright: (c) Southampton University 1999-2004
+//              (c) Andy Rushton           2004-2009
+//   License:   BSD License, see ../docs/license.html
+
+////////////////////////////////////////////////////////////////////////////////
+#include "persistent_bool.hpp"
+
+////////////////////////////////////////////////////////////////////////////////
+
+// bool is dumped and restored as an unsigned char
+void stlplus::dump_bool(stlplus::dump_context& context, const bool& data) throw(stlplus::persistent_dump_failed)
+{
+  context.put((unsigned char)data);
+}
+
+void stlplus::restore_bool(restore_context& context, bool& data) throw(stlplus::persistent_restore_failed)
+{
+  data = context.get() != 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////