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/*=============================================================================
Copyright (c) 1998-2003 Joel de Guzman
Copyright (c) 2001 Daniel Nuffer
Copyright (c) 2002 Hartmut Kaiser
http://spirit.sourceforge.net/
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)
=============================================================================*/
#if !defined(BOOST_SPIRIT_OPTIONAL_IPP)
#define BOOST_SPIRIT_OPTIONAL_IPP
namespace boost { namespace spirit {
///////////////////////////////////////////////////////////////////////////
//
// optional class implementation
//
///////////////////////////////////////////////////////////////////////////
template <typename S>
optional<S>
operator!(parser<S> const& a)
{
return optional<S>(a.derived());
}
}} // namespace boost::spirit
#endif