unary_function_output_iterator_adaptor.hpp

用STL的方式封装了WindowsAPI、COM调用、ACE、ATL、MFC、WTL等多种组件

/* /////////////////////////////////////////////////////////////////////////
 * File:        stlsoft/unary_function_output_iterator_adaptor.hpp
 *
 * Purpose:     Class that adapts a unary function to an output iterator.
 *
 * Created:     20th July 2005
 * Updated:     10th June 2006
 *
 * Home:        http://stlsoft.org/
 *
 * Copyright (c) 2005-2006, Matthew Wilson and Synesis Software
 * Copyright (c) 2005, Pablo Aguilar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of
 *   any contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * ////////////////////////////////////////////////////////////////////// */


/// \file stlsoft/unary_function_output_iterator_adaptor.hpp
///
/// Class that adapts a unary function to an output iterator.

#ifndef STLSOFT_INCL_STLSOFT_HPP_UNARY_FUNCTION_OUTPUT_ITERATOR_ADAPTOR
#define STLSOFT_INCL_STLSOFT_HPP_UNARY_FUNCTION_OUTPUT_ITERATOR_ADAPTOR

#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
# define STLSOFT_VER_STLSOFT_HPP_UNARY_FUNCTION_OUTPUT_ITERATOR_ADAPTOR_MAJOR       1
# define STLSOFT_VER_STLSOFT_HPP_UNARY_FUNCTION_OUTPUT_ITERATOR_ADAPTOR_MINOR       1
# define STLSOFT_VER_STLSOFT_HPP_UNARY_FUNCTION_OUTPUT_ITERATOR_ADAPTOR_REVISION    1
# define STLSOFT_VER_STLSOFT_HPP_UNARY_FUNCTION_OUTPUT_ITERATOR_ADAPTOR_EDIT        6
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */

/* /////////////////////////////////////////////////////////////////////////
 * Includes
 */

#ifndef STLSOFT_INCL_STLSOFT_H_STLSOFT
# include <stlsoft/stlsoft.h>
#endif /* !STLSOFT_INCL_STLSOFT_H_STLSOFT */
#ifndef STLSOFT_INCL_STLSOFT_HPP_ITERATOR
# include <stlsoft/iterator.hpp>
#endif /* !STLSOFT_INCL_STLSOFT_HPP_ITERATOR */

/* /////////////////////////////////////////////////////////////////////////
 * Namespace
 */

#ifndef _STLSOFT_NO_NAMESPACE
namespace stlsoft
{
#endif /* _STLSOFT_NO_NAMESPACE */

/* /////////////////////////////////////////////////////////////////////////
 * Classes
 */

/// \brief This class provides adaptation to OutputIterator of a unary function
/// using CRTP/SCTP.
///
/// \param F The Unary Function class type
///
///
template <ss_typename_param_k F>
struct unary_function_output_iterator_adaptor
{
/// \name Types
/// @{
public:
    typedef F                                           function_class_type;
    typedef unary_function_output_iterator_adaptor<F>   class_type;

public:
    typedef stlsoft_ns_qual_std(output_iterator_tag)    iterator_category;
//  typedef ss_typename_type_k F::argument_type         value_type;
    typedef void                                        value_type;
    typedef void                                        pointer;
    typedef void                                        reference;
    typedef ss_ptrdiff_t                                difference_type;
/// @}

/// \name Iterator methods
/// @{
public:
    /// \brief Pre-increment operation
    class_type &operator ++()
    {
        return *this;
    }
    /// \brief Post-increment operation
    class_type operator ++(int)
    {
        return *this;
    }

    /// \brief Dereference operator
    class_type &operator *() const
    {
        return *const_cast<class_type*>(this);
    }

    /// \brief Assignment operator
    template <ss_typename_param_k A>
    void operator =(A const &arg)
    {
        (*static_cast<function_class_type*>(this))(arg);
    }
/// @}

private:
    void operator =(class_type const &);
};

/* ////////////////////////////////////////////////////////////////////// */

#ifndef _STLSOFT_NO_NAMESPACE
} // namespace stlsoft
#endif /* _STLSOFT_NO_NAMESPACE */

/* ////////////////////////////////////////////////////////////////////// */

#endif /* !STLSOFT_INCL_STLSOFT_HPP_UNARY_FUNCTION_OUTPUT_ITERATOR_ADAPTOR */

/* ////////////////////////////////////////////////////////////////////// */