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diff --git a/include/jsoncons_ext/ubjson/ubjson_options.hpp b/include/jsoncons_ext/ubjson/ubjson_options.hpp
new file mode 100644
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+++ b/include/jsoncons_ext/ubjson/ubjson_options.hpp
@@ -0,0 +1,87 @@
+// Copyright 2019 Daniel Parker
+// Distributed under the Boost license, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+// See https://github.com/danielaparker/jsoncons for latest version
+
+#ifndef JSONCONS_UBJSON_UBJSON_OPTIONS_HPP
+#define JSONCONS_UBJSON_UBJSON_OPTIONS_HPP
+
+#include <string>
+#include <limits> // std::numeric_limits
+#include <cwchar>
+#include <jsoncons/json_exception.hpp>
+
+namespace jsoncons { namespace ubjson {
+
+class ubjson_options;
+
+class ubjson_options_common
+{
+    friend class ubjson_options;
+
+    int max_nesting_depth_;
+protected:
+    virtual ~ubjson_options_common() = default;
+
+    ubjson_options_common()
+        : max_nesting_depth_(1024)
+    {
+    }
+
+    ubjson_options_common(const ubjson_options_common&) = default;
+    ubjson_options_common& operator=(const ubjson_options_common&) = default;
+    ubjson_options_common(ubjson_options_common&&) = default;
+    ubjson_options_common& operator=(ubjson_options_common&&) = default;
+public:
+    int max_nesting_depth() const 
+    {
+        return max_nesting_depth_;
+    }
+};
+
+class ubjson_decode_options : public virtual ubjson_options_common
+{
+    friend class ubjson_options;
+    std::size_t max_items_;
+public:
+    ubjson_decode_options() :
+         max_items_(1 << 24)
+    {
+    }
+
+    std::size_t max_items() const
+    {
+        return max_items_;
+    }
+};
+
+class ubjson_encode_options : public virtual ubjson_options_common
+{
+    friend class ubjson_options;
+public:
+    ubjson_encode_options()
+    {
+    }
+};
+
+class ubjson_options final : public ubjson_decode_options, public ubjson_encode_options
+{
+public:
+    using ubjson_options_common::max_nesting_depth;
+
+    ubjson_options& max_nesting_depth(int value)
+    {
+        this->max_nesting_depth_ = value;
+        return *this;
+    }
+
+    ubjson_options& max_items(std::size_t value)
+    {
+        this->max_items_ = value;
+        return *this;
+    }
+};
+
+}}
+#endif