1 // Copyright (C) 2003, Fernando Luis Cacciola Carballal.
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3 // Use, modification, and distribution is subject to the Boost Software
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4 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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5 // http://www.boost.org/LICENSE_1_0.txt)
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7 // See http://www.boost.org/lib/optional for documentation.
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9 // You are welcome to contact the author at:
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10 // fernando_cacciola@hotmail.com
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12 #ifndef BOOST_DETAIL_NONE_T_17SEP2003_HPP
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13 #define BOOST_DETAIL_NONE_T_17SEP2003_HPP
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19 struct none_helper{};
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21 typedef int none_helper::*none_t ;
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23 } // namespace detail
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25 } // namespace boost
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