63e88f80
 Hu Chunming
提交三方库
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// Three-state boolean logic library
// Copyright Douglas Gregor 2002-2004. Use, modification and
// distribution is subject to 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)
// For more information, see http://www.boost.org
#ifndef BOOST_LOGIC_TRIBOOL_FWD_HPP
#define BOOST_LOGIC_TRIBOOL_FWD_HPP
namespace boost { namespace logic { class tribool; } }
#endif // BOOST_LOGIC_TRIBOOL_FWD_HPP
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