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diff --git a/boost/poly_collection/exception.hpp b/boost/poly_collection/exception.hpp
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+/* Copyright 2016-2017 Joaquin M Lopez Munoz.
+ * Distributed under the Boost Software License, Version 1.0.
+ * (See accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * See http://www.boost.org/libs/poly_collection for library home page.
+ */
+
+#ifndef BOOST_POLY_COLLECTION_EXCEPTION_HPP
+#define BOOST_POLY_COLLECTION_EXCEPTION_HPP
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <stdexcept>
+#include <typeinfo>
+
+namespace boost{
+
+namespace poly_collection{
+
+struct unregistered_type:std::logic_error
+{
+  unregistered_type(const std::type_info& info):
+    std::logic_error{"type not registered"},
+    pinfo{&info}
+  {}
+
+  const std::type_info* pinfo;
+};
+
+struct not_copy_constructible:std::logic_error
+{
+  not_copy_constructible(const std::type_info& info):
+    std::logic_error{"type is not copy constructible"},
+    pinfo{&info}
+  {}
+
+  const std::type_info* pinfo;
+};
+
+struct not_equality_comparable:std::logic_error
+{
+  not_equality_comparable(const std::type_info& info):
+    std::logic_error{"type does not support equality comparison"},
+    pinfo{&info}
+  {}
+
+  const std::type_info* pinfo;
+};
+
+} /* namespace poly_collection */
+
+} /* namespace boost */
+
+#endif