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diff --git a/boost/metaparse/v1/source_position.hpp b/boost/metaparse/v1/source_position.hpp
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+++ b/boost/metaparse/v1/source_position.hpp
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+#ifndef BOOST_METAPARSE_V1_SOURCE_POSITION_HPP
+#define BOOST_METAPARSE_V1_SOURCE_POSITION_HPP
+
+//    Copyright Abel Sinkovics (abel@sinkovics.hu) 2011.
+// 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)
+
+#include <boost/metaparse/v1/fwd/source_position.hpp>
+#include <boost/metaparse/v1/source_position_tag.hpp>
+
+
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/equal_to.hpp>
+#include <boost/mpl/less.hpp>
+
+namespace boost
+{
+  namespace metaparse
+  {
+    namespace v1
+    {
+      template <class Line, class Col, class PrevChar>
+      struct source_position
+      {
+        typedef source_position_tag tag;
+        typedef source_position type;
+        
+        typedef Line line;
+        typedef Col col;
+        typedef PrevChar prev_char;
+      };
+    }
+  }
+}
+
+namespace boost
+{
+  namespace mpl
+  {
+    template <class TagA, class TagB>
+    struct equal_to_impl;
+
+    template <>
+    struct equal_to_impl<
+      boost::metaparse::v1::source_position_tag,
+      boost::metaparse::v1::source_position_tag
+    >
+    {
+      typedef equal_to_impl type;
+
+      template <class A, class B>
+      struct apply :
+        bool_<
+          A::type::line::value == B::type::line::value
+          && A::type::col::value == B::type::col::value
+          && A::type::prev_char::value == B::type::prev_char::value
+        >
+      {};
+    };
+
+    template <class TagA, class TagB>
+    struct not_equal_to_impl;
+
+    template <>
+    struct not_equal_to_impl<
+      boost::metaparse::v1::source_position_tag,
+      boost::metaparse::v1::source_position_tag
+    >
+    {
+      typedef not_equal_to_impl type;
+
+      template <class A, class B>
+      struct apply : bool_<!equal_to<A, B>::type::value> {};
+    };
+
+    template <class TagA, class TagB>
+    struct less_impl;
+
+    template <>
+    struct less_impl<
+      boost::metaparse::v1::source_position_tag,
+      boost::metaparse::v1::source_position_tag
+    >
+    {
+      typedef less_impl type;
+
+      template <class A, class B>
+      struct apply :
+        bool_<(
+          (A::type::line::value) < (B::type::line::value) || (
+            (A::type::line::value) == (B::type::line::value) && (
+              (A::type::col::value) < (B::type::col::value) || (
+                (A::type::col::value) == (B::type::col::value) &&
+                (A::type::prev_char::value) < (B::type::prev_char::value)
+              )
+            )
+          )
+        )>
+      {};
+    };
+
+    template <class TagA, class TagB>
+    struct greater_impl;
+
+    template <>
+    struct greater_impl<
+      boost::metaparse::v1::source_position_tag,
+      boost::metaparse::v1::source_position_tag
+    >
+    {
+      typedef greater_impl type;
+
+      template <class A, class B>
+      struct apply :
+        bool_<!(less<A, B>::type::value || equal_to<A, B>::type::value)>
+      {};
+    };
+
+    template <class TagA, class TagB>
+    struct greater_equal_impl;
+
+    template <>
+    struct greater_equal_impl<
+      boost::metaparse::v1::source_position_tag,
+      boost::metaparse::v1::source_position_tag
+    >
+    {
+      typedef greater_equal_impl type;
+
+      template <class A, class B>
+      struct apply : bool_<!less<A, B>::type::value> {};
+    };
+
+    template <class TagA, class TagB>
+    struct less_equal_impl;
+
+    template <>
+    struct less_equal_impl<
+      boost::metaparse::v1::source_position_tag,
+      boost::metaparse::v1::source_position_tag
+    >
+    {
+      typedef less_equal_impl type;
+
+      template <class A, class B>
+      struct apply :
+        bool_<less<A, B>::type::value || equal_to<A, B>::type::value>
+      {};
+    };
+
+  }
+}
+
+#endif
+