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/usr/include/boost/test/utils/iterator

Name	Size	Mode	Actions
input_iterator_facade.hpp	3128	0644	edit dl rm
token_iterator.hpp	14245	0644	edit dl rm

Edit: /usr/include/boost/test/utils/iterator/input_iterator_facade.hpp (3128B)

//  See http://www.boost.org/libs/test for the library home page.
//
//!@file
//! Input iterator facade
// ***************************************************************************

#ifndef BOOST_TEST_UTILS_INPUT_ITERATOR_FACADE_HPP
#define BOOST_TEST_UTILS_INPUT_ITERATOR_FACADE_HPP

// Boost
#include <boost/iterator/iterator_facade.hpp>

#include <boost/test/detail/suppress_warnings.hpp>

//____________________________________________________________________________//

namespace boost {
namespace unit_test {
namespace utils {

// ************************************************************************** //
// **************          input_iterator_core_access          ************** //
// ************************************************************************** //

class input_iterator_core_access
{
#if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS) || BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x551))
public:
#else
    template <class I, class V, class R, class TC> friend class input_iterator_facade;
#endif

template <class Facade>
    static bool get( Facade& f )
    {
        return f.get();
    }

private:
    // objects of this class are useless
    input_iterator_core_access(); //undefined
};

// ************************************************************************** //
// **************            input_iterator_facade             ************** //
// ************************************************************************** //

template<typename Derived,
         typename ValueType,
         typename Reference = ValueType const&,
         typename Traversal = single_pass_traversal_tag>
class input_iterator_facade : public iterator_facade<Derived,ValueType,Traversal,Reference>
{
public:
    // Constructor
    input_iterator_facade() : m_valid( false ), m_value() {}

protected: // provide access to the Derived
    void                init()
    {
        m_valid = true;
        increment();
    }

// Data members
    mutable bool        m_valid;
    ValueType           m_value;

private:
    friend class boost::iterator_core_access;

// iterator facade interface implementation
    void                increment()
    {
        // we make post-end incrementation indefinetly safe
        if( m_valid )
            m_valid = input_iterator_core_access::get( *static_cast<Derived*>(this) );
    }
    Reference           dereference() const
    {
        return m_value;
    }

// iterator facade interface implementation
    bool                equal( input_iterator_facade const& rhs ) const
    {
        // two invalid iterator equals, inequal otherwise
        return !m_valid && !rhs.m_valid;
    }
};

} // namespace utils
} // namespace unit_test
} // namespace boost

//____________________________________________________________________________//

#include <boost/test/detail/enable_warnings.hpp>

#endif // BOOST_TEST_UTILS_INPUT_ITERATOR_FACADE_HPP

// (C) Copyright Gennadiy Rozental 2001. // Distributed under 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) // See http://www.boost.org/libs/test for the library home page. // //!@file //! Input iterator facade // *************************************************************************** #ifndef BOOST_TEST_UTILS_INPUT_ITERATOR_FACADE_HPP #define BOOST_TEST_UTILS_INPUT_ITERATOR_FACADE_HPP // Boost #include #include //____________________________________________________________________________// namespace boost { namespace unit_test { namespace utils { // ************************************************************************** // // ************** input_iterator_core_access ************** // // ************************************************************************** // class input_iterator_core_access { #if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS) || BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x551)) public: #else template friend class input_iterator_facade; #endif template static bool get( Facade& f ) { return f.get(); } private: // objects of this class are useless input_iterator_core_access(); //undefined }; // ************************************************************************** // // ************** input_iterator_facade ************** // // ************************************************************************** // template class input_iterator_facade : public iterator_facade { public: // Constructor input_iterator_facade() : m_valid( false ), m_value() {} protected: // provide access to the Derived void init() { m_valid = true; increment(); } // Data members mutable bool m_valid; ValueType m_value; private: friend class boost::iterator_core_access; // iterator facade interface implementation void increment() { // we make post-end incrementation indefinetly safe if( m_valid ) m_valid = input_iterator_core_access::get( *static_cast(this) ); } Reference dereference() const { return m_value; } // iterator facade interface implementation bool equal( input_iterator_facade const& rhs ) const { // two invalid iterator equals, inequal otherwise return !m_valid && !rhs.m_valid; } }; } // namespace utils } // namespace unit_test } // namespace boost //____________________________________________________________________________// #include #endif // BOOST_TEST_UTILS_INPUT_ITERATOR_FACADE_HPP