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41 lines
1.3 KiB
41 lines
1.3 KiB
// Copyright 2008 Christophe Henry |
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// henry UNDERSCORE christophe AT hotmail DOT com |
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// This is an extended version of the state machine available in the boost::mpl library |
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// Distributed under the same license as the original. |
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// Copyright for the original version: |
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// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed |
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// under the Boost Software License, Version 1.0. (See accompanying |
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// file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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#ifndef BOOST_MSM_BACK_BIND_HELPERS_H |
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#define BOOST_MSM_BACK_BIND_HELPERS_H |
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#include <functional> |
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namespace boost { namespace msm { namespace back |
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{ |
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// helper to replace std::plus as the lack of implicit conversion makes it not usable in one of our bind |
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template<class _Ty,class _Tz> |
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struct plus2 |
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: public std::binary_function<_Ty, _Tz, _Ty> |
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{ |
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// functor for operator+ |
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_Ty operator()( _Ty _Left, _Tz _Right) const |
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{ |
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// apply operator+ to operands |
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return (_Left + _Right); |
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} |
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}; |
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// helper to dereference a pointer to a function pointer |
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template <class T> |
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struct deref |
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{ |
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typedef T& result_type; |
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T& operator()(T* f) const |
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{ |
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return *f; |
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} |
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}; |
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} } }//boost::msm::back |
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#endif //BOOST_MSM_BACK_BIND_HELPERS_H
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