FM / signals2

/usr/include/boost/signals2

Name	Size	Mode	Actions
detail/	-	0755	rm
connection.hpp	12005	0644	edit dl rm
deconstruct.hpp	18982	0644	edit dl rm
deconstruct_ptr.hpp	2385	0644	edit dl rm
dummy_mutex.hpp	832	0644	edit dl rm
expired_slot.hpp	731	0644	edit dl rm
last_value.hpp	2161	0644	edit dl rm
mutex.hpp	1060	0644	edit dl rm
optional_last_value.hpp	1720	0644	edit dl rm
postconstructible.hpp	1633	0644	edit dl rm
predestructible.hpp	1341	0644	edit dl rm
preprocessed_signal.hpp	2430	0644	edit dl rm
preprocessed_slot.hpp	2807	0644	edit dl rm
shared_connection_block.hpp	1858	0644	edit dl rm
signal.hpp	1913	0644	edit dl rm
signal_base.hpp	815	0644	edit dl rm
signal_type.hpp	4162	0644	edit dl rm
slot.hpp	976	0644	edit dl rm
slot_base.hpp	3365	0644	edit dl rm
trackable.hpp	1913	0644	edit dl rm
variadic_signal.hpp	1457	0644	edit dl rm
variadic_slot.hpp	772	0644	edit dl rm

Edit: /usr/include/boost/signals2/last_value.hpp (2161B)

// last_value function object (documented as part of Boost.Signals)

// Copyright Frank Mori Hess 2007.
// Copyright Douglas Gregor 2001-2003. 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_SIGNALS2_LAST_VALUE_HPP
#define BOOST_SIGNALS2_LAST_VALUE_HPP

#include <boost/core/no_exceptions_support.hpp>
#include <boost/optional.hpp>
#include <boost/signals2/expired_slot.hpp>
#include <boost/throw_exception.hpp>
#include <stdexcept>

namespace boost {
  namespace signals2 {

// no_slots_error is thrown when we are unable to generate a return value
    // due to no slots being connected to the signal.
    class no_slots_error: public std::exception
    {
    public:
      virtual const char* what() const throw() {return "boost::signals2::no_slots_error";}
    };

template<typename T>
    class last_value {
    public:
      typedef T result_type;

template<typename InputIterator>
      T operator()(InputIterator first, InputIterator last) const
      {
        if(first == last)
        {
          boost::throw_exception(no_slots_error());
        }
        optional<T> value;
        while (first != last)
        {
          BOOST_TRY
          {
            value = *first;
          }
          BOOST_CATCH(const expired_slot &) {}
          BOOST_CATCH_END
          ++first;
        }
        if(value) return value.get();
        boost::throw_exception(no_slots_error());
      }
    };

template<>
    class last_value<void> {
    public:
      typedef void result_type;
      template<typename InputIterator>
        result_type operator()(InputIterator first, InputIterator last) const
      {
        while (first != last)
        {
          BOOST_TRY
          {
            *first;
          }
          BOOST_CATCH(const expired_slot &) {}
          BOOST_CATCH_END
          ++first;
        }
        return;
      }
    };
  } // namespace signals2
} // namespace boost
#endif // BOOST_SIGNALS2_LAST_VALUE_HPP

// last_value function object (documented as part of Boost.Signals) // Copyright Frank Mori Hess 2007. // Copyright Douglas Gregor 2001-2003. 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_SIGNALS2_LAST_VALUE_HPP #define BOOST_SIGNALS2_LAST_VALUE_HPP #include #include #include #include #include namespace boost { namespace signals2 { // no_slots_error is thrown when we are unable to generate a return value // due to no slots being connected to the signal. class no_slots_error: public std::exception { public: virtual const char* what() const throw() {return "boost::signals2::no_slots_error";} }; template class last_value { public: typedef T result_type; template T operator()(InputIterator first, InputIterator last) const { if(first == last) { boost::throw_exception(no_slots_error()); } optional value; while (first != last) { BOOST_TRY { value = *first; } BOOST_CATCH(const expired_slot &) {} BOOST_CATCH_END ++first; } if(value) return value.get(); boost::throw_exception(no_slots_error()); } }; template<> class last_value { public: typedef void result_type; template result_type operator()(InputIterator first, InputIterator last) const { while (first != last) { BOOST_TRY { *first; } BOOST_CATCH(const expired_slot &) {} BOOST_CATCH_END ++first; } return; } }; } // namespace signals2 } // namespace boost #endif // BOOST_SIGNALS2_LAST_VALUE_HPP