[857] | 1 | // Boost Lambda Library -- control_constructs_common.hpp -------------------
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| 2 |
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| 3 | // Copyright (C) 1999, 2000 Jaakko Järvi (jaakko.jarvi@cs.utu.fi)
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| 4 | // Copyright (C) 2000 Gary Powell (powellg@amazon.com)
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| 5 | //
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| 6 | // Distributed under the Boost Software License, Version 1.0. (See
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| 7 | // accompanying file LICENSE_1_0.txt or copy at
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| 8 | // http://www.boost.org/LICENSE_1_0.txt)
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| 9 | //
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| 10 | // For more information, see www.boost.org
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| 11 |
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| 12 | // --------------------------------------------------------------------------
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| 13 |
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| 14 | #if !defined(BOOST_CONTROL_CONSTRUCTS_COMMON_HPP)
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| 15 | #define BOOST_CONTROL_CONSTRUCTS_COMMON_HPP
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| 16 |
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| 17 | namespace boost {
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| 18 | namespace lambda {
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| 19 |
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| 20 | // special types of lambda functors, used with control structures
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| 21 | // to guarantee that they are composed correctly.
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| 22 |
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| 23 | template<class Tag, class LambdaFunctor>
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| 24 | class tagged_lambda_functor;
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| 25 |
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| 26 | template<class Tag, class Args>
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| 27 | class tagged_lambda_functor<Tag, lambda_functor<Args> >
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| 28 | : public lambda_functor<Args>
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| 29 | {
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| 30 | public:
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| 31 | tagged_lambda_functor(const Args& a) : lambda_functor<Args>(a) {}
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| 32 |
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| 33 | tagged_lambda_functor(const lambda_functor<Args>& a)
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| 34 | : lambda_functor<Args>(a) {}
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| 35 |
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| 36 | // for the no body cases in control structures.
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| 37 | tagged_lambda_functor() : lambda_functor<Args>() {}
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| 38 | };
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| 39 |
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| 40 | } // lambda
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| 41 | } // boost
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| 42 |
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| 43 | #endif // BOOST_CONTROL_CONSTRUCTS_COMMON_HPP
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| 44 |
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| 45 |
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| 47 |
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| 48 |
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