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none_t/none reimplemented to avoid precompiled header issues (thanks to Joe Gottam)

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optional<T> now has direct relational operator
optional<T>::operator-> fixed for reference types


[SVN r37126]
This commit is contained in:
Fernando Cacciola
2007-03-01 23:08:33 +00:00
parent 9bbde2be14
commit b6a1946a60
6 changed files with 391 additions and 186 deletions
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24
include/boost/none_t.hpp
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// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
//
// 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)
//
// See http://www.boost.org/lib/optional for documentation.
//
// You are welcome to contact the author at:
// fernando_cacciola@hotmail.com
//
#ifndef BOOST_NONE_T_17SEP2003_HPP
#define BOOST_NONE_T_17SEP2003_HPP
namespace boost {
namespace detail { struct none_helper{}; }
typedef int detail::none_helper::*none_t ;
} // namespace boost
#endif