iterator_range.hpp

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

/* /////////////////////////////////////////////////////////////////////////
 * File:        rangelib/iterator_range.hpp
 *
 * Purpose:     Iterator range adaptor.
 *
 * Created:     4th November 2003
 * Updated:     10th June 2006
 *
 * Home:        http://stlsoft.org/
 *
 * Copyright (c) 2003-2006, Matthew Wilson and Synesis Software
 * 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 rangelib/iterator_range.hpp Iterator range adaptor */

#ifndef RANGELIB_INCL_RANGELIB_HPP_ITERATOR_RANGE
#define RANGELIB_INCL_RANGELIB_HPP_ITERATOR_RANGE

#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
# define RANGELIB_VER_RANGELIB_HPP_ITERATOR_RANGE_MAJOR    2
# define RANGELIB_VER_RANGELIB_HPP_ITERATOR_RANGE_MINOR    6
# define RANGELIB_VER_RANGELIB_HPP_ITERATOR_RANGE_REVISION 1
# define RANGELIB_VER_RANGELIB_HPP_ITERATOR_RANGE_EDIT     31
#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */

/* /////////////////////////////////////////////////////////////////////////
 * Auto-generation and compatibility
 */

/*
[<[STLSOFT-AUTO:NO-UNITTEST]>]
[Incompatibilies-start]
STLSOFT_COMPILER_IS_BORLAND:
STLSOFT_COMPILER_IS_GCC:     __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)
STLSOFT_COMPILER_IS_MSVC:     _MSC_VER < 1200
STLSOFT_COMPILER_IS_MWERKS:   (__MWERKS__ & 0xFF00) < 0x3000
[Incompatibilies-end]
 */

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

#ifndef RANGELIB_INCL_RANGELIB_HPP_RANGELIB
# include <rangelib/rangelib.hpp>
#endif /* !RANGELIB_INCL_RANGELIB_HPP_RANGELIB */

#ifndef STLSOFT_CF_TEMPLATE_PARTIAL_SPECIALISATION_SUPPORT
# error rangelib/iterator_range.hpp is not compatible with compilers that do not support partial template specialisation
#endif /* !STLSOFT_CF_TEMPLATE_PARTIAL_SPECIALISATION_SUPPORT */

#ifndef RANGELIB_INCL_RANGELIB_HPP_RANGE_CATEGORIES
# include <rangelib/range_categories.hpp>
#endif /* !RANGELIB_INCL_RANGELIB_HPP_RANGE_CATEGORIES */
#ifndef STLSOFT_INCL_STLSOFT_HPP_OPERATOR_BOOL
# include <stlsoft/operator_bool.hpp>
#endif /* !STLSOFT_INCL_STLSOFT_HPP_OPERATOR_BOOL */
#ifndef STLSOFT_INCL_STLSOFT_HPP_META
# include <stlsoft/meta.hpp>
#endif /* !STLSOFT_INCL_STLSOFT_HPP_META */
#ifndef STLSOFT_INCL_STLSOFT_META_HPP_BASE_TYPE_TRAITS
# include <stlsoft/meta/base_type_traits.hpp>
#endif /* !STLSOFT_INCL_STLSOFT_META_HPP_BASE_TYPE_TRAITS */
#ifndef STLSOFT_INCL_STLSOFT_HPP_ITERATOR
# include <stlsoft/iterator.hpp>
#endif /* !STLSOFT_INCL_STLSOFT_HPP_ITERATOR */

#ifdef STLSOFT_UNITTEST
# include <algorithm>
# include <deque>
# include <list>
# include <numeric>
# include <vector>
#endif /* STLSOFT_UNITTEST */

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

#ifndef RANGELIB_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
     defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
/* There is no stlsoft namespace, so must define ::rangelib */
namespace rangelib
{
# else
/* Define stlsoft::rangelib_project */

namespace stlsoft
{

namespace rangelib_project
{

# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !RANGELIB_NO_NAMESPACE */

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

#ifdef STLSOFT_CF_TEMPLATE_PARTIAL_SPECIALISATION_SUPPORT

/// Traits class for determining the attributes of range-adapted iterator types
template<   ss_typename_param_k I
        ,   bool                B_CONST
        >
struct iterator_range_traits
{
public:
    /// The iterator type
    typedef I                                                                           iterator_type;
    /// The value type
    typedef ss_typename_type_k I::value_type                                            value_type;
private:
#ifdef STLSOFT_ITERATOR_ITERATOR_FORM2_SUPPORT
    // Use the iterator itself to determine whether the iterator is const
    enum { is_const = base_type_traits<value_type>::is_const };
#else /* ? STLSOFT_ITERATOR_ITERATOR_FORM2_SUPPORT */
    // 1. Use iterator_traits ...
    typedef std::iterator_traits<I>                                                     traits_type_;
    // ... to get the pointer type ...
    typedef ss_typename_type_k traits_type_::pointer                                    pointer_type_;
    // ... to determine whether the iterator is const
    enum { is_const = base_type_traits<pointer_type_>::is_const };
#endif /* !STLSOFT_ITERATOR_ITERATOR_FORM2_SUPPORT */
    // 2. Use Determine the base type of the value_type, which may then be used to create a reference of the appropriate type
    typedef ss_typename_type_k base_type_traits<value_type>::base_type                  base_value_type;
//  enum { is_const = is_const<pointer>::value };
public:
    /// The mutating (non-const) iterator type
    typedef I                                                                           iterator;
    /// The non-mutating (const) iterator type
    typedef ss_typename_type_k base_type_traits<iterator>::base_type const              &const_iterator;
    /// The mutating (non-const) refernce type
    typedef ss_typename_type_k select_first_type_if<   base_value_type const &
                                                ,   base_value_type &, is_const>::type  reference;
    /// The non-mutating (const) reference type
    typedef base_value_type const                                                       &const_reference;
// TODO: Stick in the member-finder stuff here, so can assume ptrdiff_t if none found
    /// The difference type
    typedef ss_typename_type_k iterator_type::difference_type                           difference_type;
    /// The size type
    typedef ss_typename_type_k iterator_type::size_type                                 size_type;
};

# ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION

template<   ss_typename_param_k T
        ,   bool                B_CONST
        >
struct iterator_range_traits<T*, B_CONST>
{
    typedef T                   value_type;
    typedef value_type          *iterator;
    typedef value_type const    *const_iterator;
    typedef value_type          &reference;
    typedef value_type const    &const_reference;
};

template<   ss_typename_param_k T
        ,   bool                B_CONST
        >
struct iterator_range_traits<T const*, B_CONST>
{
    typedef T                   value_type;
    typedef value_type const    *iterator;
    typedef value_type const    *const_iterator;
    typedef value_type const    &reference;
    typedef value_type const    &const_reference;
};

# endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */

#else /* ? STLSOFT_CF_TEMPLATE_PARTIAL_SPECIALISATION_SUPPORT */

template<   ss_typename_param_k I
        >
struct iterator_range_traits
{
public:
    typedef I                                                       iterator_type;
    typedef ss_typename_type_k iterator_type::value_type            value_type;
    typedef ss_typename_type_k iterator_type::iterator              iterator;
    typedef ss_typename_type_k iterator_type::const_iterator        const_iterator;
    typedef ss_typename_type_k iterator_type::reference             reference;
    typedef ss_typename_type_k iterator_type::const_reference       const_reference;
// TODO: Stick in the member-finder stuff here, so can assume ptrdiff_t if none found
    typedef ss_typename_type_k iterator_type::difference_type       difference_type;
    typedef ss_typename_type_k iterator_type::size_type             size_type;
};

template<   ss_typename_param_k I
        >
struct const_iterator_range_traits
{
public:
    typedef I                                                       iterator_type;
    typedef ss_typename_type_k iterator_type::value_type            value_type;
    typedef ss_typename_type_k iterator_type::const_iterator        iterator;
    typedef ss_typename_type_k iterator_type::const_iterator        const_iterator;
    typedef ss_typename_type_k iterator_type::const_reference       reference;
    typedef ss_typename_type_k iterator_type::const_reference       const_reference;
    typedef ss_typename_type_k iterator_type::difference_type       difference_type;
    typedef ss_typename_type_k iterator_type::size_type             size_type;
};

template<   ss_typename_param_k T
        >
struct pointer_iterator_range_traits
{
    typedef T                                                       value_type;
    typedef T                                                       *iterator;
    typedef T const                                                 *const_iterator;
    typedef T                                                       &reference;
    typedef T const                                                 &const_reference;
    typedef ptrdiff_t                                               difference_type;
    typedef size_t                                                  size_type;
};

template<   ss_typename_param_k T
        >
struct const_pointer_iterator_range_traits
{
    typedef T                                                       value_type;
    typedef T const                                                 *iterator;
    typedef T const                                                 *const_iterator;
    typedef T const                                                 &reference;
    typedef T const                                                 &const_reference;
    typedef ptrdiff_t                                               difference_type;