Chris@16: // Boost Lambda Library -- control_constructs_common.hpp -------------------
Chris@16: 
Chris@16: // Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
Chris@16: // Copyright (C) 2000 Gary Powell (powellg@amazon.com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // For more information, see www.boost.org
Chris@16: 
Chris@16: // --------------------------------------------------------------------------
Chris@16: 
Chris@16: #if !defined(BOOST_CONTROL_CONSTRUCTS_COMMON_HPP)
Chris@16: #define BOOST_CONTROL_CONSTRUCTS_COMMON_HPP
Chris@16: 
Chris@16: namespace boost { 
Chris@16: namespace lambda {
Chris@16: 
Chris@16:   // special types of lambda functors, used with control structures
Chris@16:   // to guarantee that they are composed correctly.
Chris@16: 
Chris@16: template<class Tag, class LambdaFunctor>
Chris@16: class tagged_lambda_functor;
Chris@16: 
Chris@16: template<class Tag, class Args>
Chris@16: class tagged_lambda_functor<Tag, lambda_functor<Args> > 
Chris@16:   : public lambda_functor<Args> 
Chris@16: {
Chris@16: public:
Chris@16:   tagged_lambda_functor(const Args& a) : lambda_functor<Args>(a) {}
Chris@16: 
Chris@16:   tagged_lambda_functor(const lambda_functor<Args>& a) 
Chris@16:     : lambda_functor<Args>(a) {}
Chris@16: 
Chris@16:   // for the no body cases in control structures.
Chris@16:   tagged_lambda_functor() : lambda_functor<Args>() {}
Chris@16: };
Chris@16: 
Chris@16: } // lambda
Chris@16: } // boost
Chris@16: 
Chris@16: #endif // BOOST_CONTROL_CONSTRUCTS_COMMON_HPP
Chris@16: 
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