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slot_call_iterator.hpp - Hosted on DriveHQ Cloud IT Platform
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Ruta de la carpeta: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\signals\detail\slot_call_iterator.hpp
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// Boost.Signals library // Copyright Douglas Gregor 2001-2004. 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) // For more information, see http://www.boost.org #ifndef BOOST_SIGNALS_SLOT_CALL_ITERATOR #define BOOST_SIGNALS_SLOT_CALL_ITERATOR #include
#include
#include
#include
#include
#include
#ifdef BOOST_HAS_ABI_HEADERS # include BOOST_ABI_PREFIX #endif namespace boost { namespace BOOST_SIGNALS_NAMESPACE { namespace detail { // Generates a slot call iterator. Essentially, this is an iterator that: // - skips over disconnected slots in the underlying list // - calls the connected slots when dereferenced // - caches the result of calling the slots template
class slot_call_iterator : public iterator_facade
, typename Function::result_type, single_pass_traversal_tag, typename Function::result_type const&> { typedef iterator_facade
, typename Function::result_type, single_pass_traversal_tag, typename Function::result_type const&> inherited; typedef typename Function::result_type result_type; friend class iterator_core_access; public: slot_call_iterator(Iterator iter_in, Iterator end_in, Function f, optional
&c) : iter(iter_in), end(end_in), f(f), cache(&c) { iter = std::find_if(iter, end, is_callable()); } typename inherited::reference dereference() const { if (!cache->is_initialized()) { cache->reset(f(*iter)); } return cache->get(); } void increment() { iter = std::find_if(++iter, end, is_callable()); cache->reset(); } bool equal(const slot_call_iterator& other) const { iter = std::find_if(iter, end, is_callable()); other.iter = std::find_if(other.iter, other.end, is_callable()); return iter == other.iter; } private: mutable Iterator iter; Iterator end; Function f; optional
* cache; }; } // end namespace detail } // end namespace BOOST_SIGNALS_NAMESPACE } // end namespace boost #ifdef BOOST_HAS_ABI_HEADERS # include BOOST_ABI_SUFFIX #endif #endif // BOOST_SIGNALS_SLOT_CALL_ITERATOR
slot_call_iterator.hpp
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