Create branch to keep WIP patch for modular build.

[SVN r85883]

development/boost/iterator_categories.hpp

@@ -1,159 +0,0 @@
-#ifndef BOOST_ITERATOR_CATEGORIES_HPP
-#define BOOST_ITERATOR_CATEGORIES_HPP
-
-#include <boost/config.hpp>
-#include <boost/type_traits/conversion_traits.hpp>
-#include <boost/type_traits/cv_traits.hpp>
-#include <boost/pending/ct_if.hpp>
-#include <boost/detail/iterator.hpp>
-
-namespace boost {
-
-  // Return Type Categories
-  struct readable_iterator_tag { };
-  struct writable_iterator_tag { };
-  struct swappable_iterator_tag { };
-  struct mutable_lvalue_iterator_tag : 
-    virtual public writable_iterator_tag,
-    virtual public readable_iterator_tag { };
-  struct constant_lvalue_iterator_tag : 
-    virtual public readable_iterator_tag { };
-
-  // Traversal Categories
-  struct forward_traversal_tag { };
-  struct bidirectional_traversal_tag : public forward_traversal_tag { };
-  struct random_access_traversal_tag : public bidirectional_traversal_tag { };
-
-  struct error_iterator_tag { };
-
-  // Inherit from iterator_base if your iterator defines its own
-  // return_category and traversal_category. Otherwise, the "old style"
-  // iterator category will be mapped to the return_category and
-  // traversal_category.
-  struct new_iterator_base { };
-
-  namespace detail {
-
-    struct return_category_from_nested_type {
-      template <typename Iterator> struct bind {
-        typedef typename Iterator::return_category type;
-      };
-    };
-
-    struct traversal_category_from_nested_type {
-      template <typename Iterator> struct bind {
-        typedef typename Iterator::traversal_category type;
-      };
-    };
-
-    template <typename ValueType>
-    struct choose_lvalue_return {
-      typedef typename ct_if<is_const<ValueType>::value,
-                             boost::constant_lvalue_iterator_tag,
-                             boost::mutable_lvalue_iterator_tag>::type type;
-    };
-    
-    
-    template <typename Category, typename ValueType>
-    struct iter_category_to_return {
-      typedef typename ct_if<
-        is_convertible<Category*, std::forward_iterator_tag*>::value,
-        typename choose_lvalue_return<ValueType>::type,
-        typename ct_if<
-          is_convertible<Category*, std::input_iterator_tag*>::value,
-          boost::readable_iterator_tag,
-          typename ct_if<
-            is_convertible<Category*, std::output_iterator_tag*>::value,
-            boost::writable_iterator_tag,
-            boost::error_iterator_tag
-          >::type
-       >::type
-      >::type type;
-    };
-
-    template <typename Category>
-    struct iter_category_to_traversal {
-      typedef typename ct_if<
-        is_convertible<Category*, std::random_access_iterator_tag*>::value,
-        random_access_traversal_tag,
-        typename ct_if<
-          is_convertible<Category*, std::bidirectional_iterator_tag*>::value,
-          bidirectional_traversal_tag,
-          forward_traversal_tag
-          >::type
-        >::type type;
-    };
-
-    struct return_category_from_old_traits {
-      template <typename Iterator> class bind {
-        typedef boost::detail::iterator_traits<Iterator> OldTraits;
-        typedef typename OldTraits::iterator_category Cat;
-        typedef typename OldTraits::value_type value_type;
-      public:
-        typedef iter_category_to_return<Cat, value_type>::type type;
-      };      
-    };
-
-    struct traversal_category_from_old_traits {
-      template <typename Iterator> class bind {
-        typedef boost::detail::iterator_traits<Iterator> OldTraits;
-        typedef typename OldTraits::iterator_category Cat;
-      public:
-        typedef iter_category_to_traversal<Cat>::type type;
-      };      
-    };
-
-    template <typename Iterator>
-    class choose_return_category {
-      typedef typename ct_if<is_convertible<Iterator*,
-                                            new_iterator_base*>::value,
-                             return_category_from_nested_type,
-                             return_category_from_old_traits>::type Choice;
-    public:
-      typedef typename Choice:: template bind<Iterator>::type type;
-    };
-
-    template <typename Iterator>
-    class choose_traversal_category {
-      typedef typename ct_if<is_convertible<Iterator*,
-                                            new_iterator_base*>::value,
-                             traversal_category_from_nested_type,
-                             traversal_category_from_old_traits>::type Choice;
-    public:
-      typedef typename Choice:: template bind<Iterator>::type type;
-    };
-    
-  } // namespace detail
-  
-  template <class Iterator>
-  struct return_category {
-    typedef typename detail::choose_return_category<Iterator>::type type;
-  };
-
-
-  template <class Iterator>
-  struct traversal_category {
-    typedef typename detail::choose_traversal_category<Iterator>::type type;
-  };
-
-#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
-
-  template <typename T>
-  struct return_category<T*>
-  {
-    typedef typename ct_if<is_const<T>::value,
-      constant_lvalue_iterator_tag,
-      mutable_lvalue_iterator_tag>::type type;
-  };
-
-  template <typename T>
-  struct traversal_category<T*>
-  {
-    typedef random_access_traversal_tag type;
-  };
-
-#endif
-
-} // namespace boost
-
-#endif // BOOST_ITERATOR_CATEGORIES_HPP

development/boost/iterator_concepts.hpp

@@ -1,172 +0,0 @@
-#ifndef BOOST_ITERATOR_CONCEPTS_HPP
-#define BOOST_ITERATOR_CONCEPTS_HPP
-
-#include <boost/concept_check.hpp>
-#include <boost/iterator_categories.hpp>
-#include <boost/type_traits/conversion_traits.hpp>
-#include <boost/static_assert.hpp>
-
-namespace boost_concepts {
-  // Used a different namespace here (instead of "boost") so that the
-  // concept descriptions do not take for granted the names in
-  // namespace boost.
-
-
-  //===========================================================================
-  // Iterator Access Concepts
-
-  template <typename Iterator>
-  class ReadableIteratorConcept {
-  public:
-    typedef typename std::iterator_traits<Iterator>::value_type value_type;
-    typedef typename std::iterator_traits<Iterator>::reference reference;
-    typedef typename boost::return_category<Iterator>::type return_category;
-
-    void constraints() {
-      boost::function_requires< boost::SGIAssignableConcept<Iterator> >();
-      boost::function_requires< boost::EqualityComparableConcept<Iterator> >();
-      boost::function_requires< 
-        boost::DefaultConstructibleConcept<Iterator> >();
-      
-      BOOST_STATIC_ASSERT((boost::is_convertible<return_category*,
-                           boost::readable_iterator_tag*>::value));
-                          
-      reference r = *i; // or perhaps read(x)
-      value_type v(r);
-      boost::ignore_unused_variable_warning(v);
-    }
-    Iterator i;
-  };
-  
-  template <typename Iterator, typename ValueType>
-  class WritableIteratorConcept {
-  public:
-    typedef typename boost::return_category<Iterator>::type return_category;
-
-    void constraints() {
-      boost::function_requires< boost::SGIAssignableConcept<Iterator> >();
-      boost::function_requires< boost::EqualityComparableConcept<Iterator> >();
-      boost::function_requires< 
-        boost::DefaultConstructibleConcept<Iterator> >();
-      
-      BOOST_STATIC_ASSERT((boost::is_convertible<return_category*,
-                           boost::writable_iterator_tag*>::value));
-
-      *i = v; // a good alternative could be something like write(x, v)
-    }
-    ValueType v;
-    Iterator i;
-  };
-  
-  template <typename Iterator>
-  class ConstantLvalueIteratorConcept {
-  public:
-    typedef typename std::iterator_traits<Iterator>::value_type value_type;
-    typedef typename std::iterator_traits<Iterator>::reference reference;
-    typedef typename boost::return_category<Iterator>::type return_category;
-
-    void constraints() {
-      boost::function_requires< ReadableIteratorConcept<Iterator> >();
-
-      BOOST_STATIC_ASSERT((boost::is_convertible<return_category*, 
-                           boost::constant_lvalue_iterator_tag*>::value));
-
-      BOOST_STATIC_ASSERT((boost::is_same<reference, 
-                           const value_type&>::value));
-
-      reference v = *i;
-      boost::ignore_unused_variable_warning(v);
-    }
-    Iterator i;
-  };
-
-  template <typename Iterator>
-  class MutableLvalueIteratorConcept {
-  public:
-    typedef typename std::iterator_traits<Iterator>::value_type value_type;
-    typedef typename std::iterator_traits<Iterator>::reference reference;
-    typedef typename boost::return_category<Iterator>::type return_category;
-
-    void constraints() {
-      boost::function_requires< ReadableIteratorConcept<Iterator> >();
-      boost::function_requires< 
-        WritableIteratorConcept<Iterator, value_type> >();
-      
-      BOOST_STATIC_ASSERT((boost::is_convertible<return_category*, 
-                           boost::mutable_lvalue_iterator_tag*>::value));
-
-      BOOST_STATIC_ASSERT((boost::is_same<reference, value_type&>::value));
-
-      reference v = *i;
-      boost::ignore_unused_variable_warning(v);
-    }
-    Iterator i;
-  };
-  
-  //===========================================================================
-  // Iterator Traversal Concepts
-
-  template <typename Iterator>
-  class ForwardIteratorConcept {
-  public:
-    typedef typename boost::traversal_category<Iterator>::type traversal_category;
-
-    void constraints() {
-      boost::function_requires< boost::SGIAssignableConcept<Iterator> >();
-      boost::function_requires< boost::EqualityComparableConcept<Iterator> >();
-      boost::function_requires< 
-        boost::DefaultConstructibleConcept<Iterator> >();
-
-      BOOST_STATIC_ASSERT((boost::is_convertible<traversal_category*, 
-                           boost::forward_traversal_tag*>::value));
-      ++i;
-      (void)i++;
-    }
-    Iterator i;
-  };
-  
-  template <typename Iterator>
-  class BidirectionalIteratorConcept {
-  public:
-    typedef typename boost::traversal_category<Iterator>::type traversal_category;
-
-    void constraints() {
-      boost::function_requires< ForwardIteratorConcept<Iterator> >();
-      
-      BOOST_STATIC_ASSERT((boost::is_convertible<traversal_category*, 
-                           boost::bidirectional_traversal_tag*>::value));
-
-      --i;
-      (void)i--;
-    }
-    Iterator i;
-  };
-
-  template <typename Iterator>
-  class RandomAccessIteratorConcept {
-  public:
-    typedef typename boost::traversal_category<Iterator>::type traversal_category;
-    typedef typename std::iterator_traits<Iterator>::difference_type
-      difference_type;
-
-    void constraints() {
-      boost::function_requires< BidirectionalIteratorConcept<Iterator> >();
-
-      BOOST_STATIC_ASSERT((boost::is_convertible<traversal_category*, 
-                           boost::random_access_traversal_tag*>::value));
-      
-      i += n;
-      i = i + n;
-      i = n + i;
-      i -= n;
-      i = i - n;
-      n = i - j;
-    }
-    difference_type n;
-    Iterator i, j;
-  };
-
-} // namespace boost_concepts
-
-
-#endif // BOOST_ITERATOR_CONCEPTS_HPP

development/libs/iterator/concept_tests.cpp

@@ -1,73 +0,0 @@
-#include <boost/iterator_concepts.hpp>
-#include <boost/operators.hpp>
-
-struct new_iterator
-  : public boost::iterator<std::random_access_iterator_tag, int>,
-    public boost::new_iterator_base
-{
-  typedef boost::random_access_traversal_tag traversal_category;
-  typedef boost::mutable_lvalue_iterator_tag return_category;
-
-  int& operator*() const { return *m_x; }
-  new_iterator& operator++() { return *this; }
-  new_iterator operator++(int) { return *this; }
-  new_iterator& operator--() { return *this; }
-  new_iterator operator--(int) { return *this; }
-  new_iterator& operator+=(std::ptrdiff_t) { return *this; }
-  new_iterator operator+(std::ptrdiff_t) { return *this; }
-  new_iterator& operator-=(std::ptrdiff_t) { return *this; }
-  std::ptrdiff_t operator-(const new_iterator&) const { return 0; }
-  new_iterator operator-(std::ptrdiff_t) const { return *this; }
-  bool operator==(const new_iterator&) const { return false; }
-  bool operator!=(const new_iterator&) const { return false; }
-  bool operator<(const new_iterator&) const { return false; }
-  int* m_x;
-};
-new_iterator operator+(std::ptrdiff_t, new_iterator x) { return x; }
-
-struct old_iterator
-  : public boost::iterator<std::random_access_iterator_tag, int>
-{
-  int& operator*() const { return *m_x; }
-  old_iterator& operator++() { return *this; }
-  old_iterator operator++(int) { return *this; }
-  old_iterator& operator--() { return *this; }
-  old_iterator operator--(int) { return *this; }
-  old_iterator& operator+=(std::ptrdiff_t) { return *this; }
-  old_iterator operator+(std::ptrdiff_t) { return *this; }
-  old_iterator& operator-=(std::ptrdiff_t) { return *this; }
-  old_iterator operator-(std::ptrdiff_t) const { return *this; }
-  std::ptrdiff_t operator-(const old_iterator&) const { return 0; }
-  bool operator==(const old_iterator&) const { return false; }
-  bool operator!=(const old_iterator&) const { return false; }
-  bool operator<(const old_iterator&) const { return false; }
-  int* m_x;
-};
-old_iterator operator+(std::ptrdiff_t, old_iterator x) { return x; }
-
-int
-main()
-{
-#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
-  boost::function_requires<
-    boost_concepts::MutableLvalueIteratorConcept<int*> >();
-  boost::function_requires<
-    boost_concepts::RandomAccessIteratorConcept<int*> >();
-
-  boost::function_requires<
-    boost_concepts::ConstantLvalueIteratorConcept<const int*> >();
-  boost::function_requires<
-    boost_concepts::RandomAccessIteratorConcept<const int*> >();
-#endif
-
-  boost::function_requires<
-    boost_concepts::MutableLvalueIteratorConcept<new_iterator> >();
-  boost::function_requires<
-    boost_concepts::RandomAccessIteratorConcept<new_iterator> >();
-
-  boost::function_requires<
-    boost_concepts::MutableLvalueIteratorConcept<old_iterator> >();
-  boost::function_requires<
-    boost_concepts::RandomAccessIteratorConcept<old_iterator> >();
-  return 0;
-}

development/libs/iterator/iterator_categories.htm

@@ -1,160 +0,0 @@
-<html>
-<!--
-  -- Copyright (c) Jeremy Siek 2000,2001
-  --
-  -- Permission to use, copy, modify, distribute and sell this software
-  -- and its documentation for any purpose is hereby granted without fee,
-  -- provided that the above copyright notice appears in all copies and
-  -- that both that copyright notice and this permission notice appear
-  -- in supporting documentation.  I make no representations about the
-  -- suitability of this software for any purpose.  It is provided "as is"
-  -- without express or implied warranty.
-  -->
-  <head>
-    <title>Boost Iterator Traits</title>
-  </head>
-
-<BODY BGCOLOR="#ffffff" LINK="#0000ee" TEXT="#000000" VLINK="#551a8b" 
-	ALINK="#ff0000"> 
-<IMG SRC="../../../../c++boost.gif" 
-     ALT="C++ Boost" width="277" height="86"> 
-<BR Clear>
-
-    <h1>Boost Iterator Category Traits</h1>
-Header <tt><a href="../../boost/iterator_categories.hpp">boost/iterator_categories.hpp</a></tt>
-
-<p>
-The <tt>boost::traversal_category</tt> and
-<tt>boost::return_category</tt> traits classes provides access to the
-category tags for iterators that model the Boost <a
-href="./iterator_concepts.htm">Iterator Concepts</a>, which are a
-replacement for the iterator requirements in the C++ standard.  The
-other associated types of the Boost iterator concepts are accessed
-through the <tt>std::iterator_traits</tt> class.
-
-<ul>
-  <li><tt>traversal_category&lt;Iter&gt;::type</tt>&nbsp;&nbsp; Can the iterator go forward, backward, etc.?
-  <li><tt>return_category&lt;Iter&gt;::type</tt>&nbsp;&nbsp; Is the iterator read or write only?
-    Is the dereferenced type an lvalue?
-</ul>
-
-<p>
-An important feature of the <tt>boost::traversal_category</tt> and
-<tt>boost::return_category</tt> classes is that they are <b>backwards
-compatible</b>, i.e., they automatically work for iterators for which
-there are valid definitions of <tt>std::iterator_traits</tt>. The old
-<tt>iterator_category</tt> is mapped to the appropriate traversal and
-return categories.
-
-<p>
-When creating a new iterator type that is meant to work with
-<tt>boost::traversal_category</tt> and
-<tt>boost::return_category</tt>, you can either create a
-specialization of these classes for your iterator type, or you can
-provide all the necessary associated types as nested typedefs.  In
-this case, your iterator class will need to inherit from
-<tt>new_iterator_base</tt> to let the category traits know
-that it will be able to find typedefs for <tt>traversal_category</tt>
-and <tt>return_category</tt> in you iterator class.
-
-
-Each of the new iterator requirements will need a category tag.
-
-<pre>
-namespace boost {
-
-  // Return Type Categories
-  struct readable_iterator_tag { };
-  struct writable_iterator_tag { };
-  struct swappable_iterator_tag { };
-  struct mutable_lvalue_iterator_tag : virtual public writable_iterator_tag,
-    virtual public readable_iterator_tag { };
-  struct constant_lvalue_iterator_tag : public readable_iterator_tag { };
-
-  // Traversal Categories
-  struct forward_traversal_tag { };
-  struct bidirectional_traversal_tag : public forward_traversal_tag { };
-  struct random_access_traversal_tag : public bidirectional_traversal_tag { };
-
-}
-</pre>  
-
-<p>
-The following is pseudo-code for the iterator category traits classes.
-
-<pre>
-namespace boost {
-
-  <i>// Inherit from iterator_base if your iterator defines its own
-  // return_category and traversal_category. Otherwise, the "old style"
-  // iterator category will be mapped to the return_category and
-  // traversal_category.</i>
-  struct new_iterator_base { };
-
-  template &lt;typename Iterator&gt;
-  struct return_category
-  {
-    <b><i>// Pseudo-code</i></b>
-    if (Iterator inherits from new_iterator_base) {
-      typedef typename Iterator::return_category type;
-    } else {
-      typedef std::iterator_traits&lt;Iterator&gt; OldTraits;
-      typedef typename OldTraits::iterator_category Cat;
-      if (Cat inherits from std::forward_iterator_tag)
-	if (is-const(T))
-	  typedef boost::constant_lvalue_iterator_tag type;
-	else
-	  typedef boost::mutable_lvalue_iterator_tag type;
-      else if (Cat inherits from std::input_iterator_tag)
-	typedef boost::readable_iterator_tag type;
-      else if (Cat inherits from std::output_iterator_tag)
-	typedef boost::writable_iterator_tag type;
-    }
-  };
-
-  template &lt;typename T&gt;
-  struct return_category&lt;T*&gt;
-  {
-    <b><i>// Pseudo-code</i></b>
-    if (is-const(T))
-      typedef boost::constant_lvalue_iterator_tag type;
-    else
-      typedef boost::mutable_lvalue_iterator_tag type;
-  };
-
-  template &lt;typename Iterator&gt;
-  struct traversal_category
-  {
-    <b><i>// Pseudo-code</i></b>
-    if (Iterator inherits from new_iterator_base) {
-      typedef typename Iterator::traversal_category type;
-    } else {
-      typedef std::iterator_traits&lt;Iterator&gt; OldTraits;
-      typedef typename OldTraits::iterator_category Cat;
-
-      if (Cat inherits from std::random_access_iterator_tag)
-	typedef boost::random_access_traversal_tag type;
-      else if (Cat inherits from std::bidirectional_iterator_tag)
-	typedef boost::bidirectional_traversal_tag type;
-      else if (Cat inherits from std::forward_iterator_tag)
-	typedef boost::forward_traversal_tag type;
-    }
-  };
-
-  template &lt;typename T&gt;
-  struct traversal_category&lt;T*&gt;
-  {
-    typedef boost::random_access_traversal_tag type;
-  };
-
-}
-</pre>
-
-    <hr>
-    <address><a href="mailto:jsiek@lsc.nd.edu">jeremy siek</a></address>
-<!-- Created: Sun Mar 18 14:06:57 EST 2001 -->
-<!-- hhmts start -->
-Last modified: Mon Mar 19 12:59:30 EST 2001
-<!-- hhmts end -->
-  </body>
-</html>

development/libs/iterator/iterator_concepts.fig

@@ -1,37 +0,0 @@
-#FIG 3.2
-Landscape
-Center
-Inches
-Letter  
-100.00
-Single
--2
-1200 2
-6 150 2325 4275 4350
-2 1 0 1 0 7 100 0 -1 4.000 0 0 -1 1 0 2
-	1 1 1.00 60.00 120.00
-	 1725 4050 1725 3450
-2 1 0 1 0 7 100 0 -1 4.000 0 0 -1 1 0 2
-	1 1 1.00 60.00 120.00
-	 1725 3150 1725 2550
-4 0 0 100 0 19 18 0.0000 4 210 3180 375 2550 ForwardTraversalIterator\001
-4 0 0 100 0 19 18 0.0000 4 210 3765 225 3450 BidirectionalTraversalIterator\001
-4 0 0 100 0 19 18 0.0000 4 210 4125 150 4350 RandomAccessTraversalIterator\001
--6
-2 1 0 1 0 7 50 0 -1 0.000 0 0 -1 1 0 2
-	1 1 1.00 60.00 120.00
-	 4800 3600 4800 2400
-2 1 0 1 0 7 50 0 -1 0.000 0 0 -1 1 0 2
-	1 1 1.00 60.00 120.00
-	 6900 3000 5400 2400
-2 1 0 1 0 7 50 0 -1 0.000 0 0 -1 1 0 2
-	1 1 1.00 60.00 120.00
-	 6900 3000 7500 2400
-2 1 0 1 0 7 50 0 -1 0.000 0 0 -1 1 0 2
-	1 1 1.00 60.00 120.00
-	 6900 3000 9075 2475
-4 0 0 100 0 19 18 0.0000 4 210 2040 6600 2400 WritableIterator\001
-4 0 0 100 0 19 18 0.0000 4 210 2145 3900 2400 ReadableIterator\001
-4 0 0 50 0 19 18 0.0000 4 210 2835 5700 3300 MutableLvalueIterator\001
-4 0 0 50 0 19 18 0.0000 4 270 2355 9075 2400 SwappableIterator\001
-4 0 0 50 0 19 18 0.0000 4 210 2970 3825 3900 ConstantLvalueIterator\001

development/libs/iterator/iterator_concepts.htm

@@ -1,663 +0,0 @@
-<HTML>
-<!--
-  -- Copyright (c) Jeremy Siek 2000
-  --
-  -- Permission to use, copy, modify, distribute and sell this software
-  -- and its documentation for any purpose is hereby granted without fee,
-  -- provided that the above copyright notice appears in all copies and
-  -- that both that copyright notice and this permission notice appear
-  -- in supporting documentation.  I make no representations about the
-  -- suitability of this software for any purpose.  It is provided "as is"
-  -- without express or implied warranty.
-  -->
-<!--
-  -- Copyright (c) 1996-1999
-  -- Silicon Graphics Computer Systems, Inc.
-  --
-  -- Permission to use, copy, modify, distribute and sell this software
-  -- and its documentation for any purpose is hereby granted without fee,
-  -- provided that the above copyright notice appears in all copies and
-  -- that both that copyright notice and this permission notice appear
-  -- in supporting documentation.  Silicon Graphics makes no
-  -- representations about the suitability of this software for any
-  -- purpose.  It is provided "as is" without express or implied warranty.
-  --
-  -- Copyright (c) 1994
-  -- Hewlett-Packard Company
-  --
-  -- Permission to use, copy, modify, distribute and sell this software
-  -- and its documentation for any purpose is hereby granted without fee,
-  -- provided that the above copyright notice appears in all copies and
-  -- that both that copyright notice and this permission notice appear
-  -- in supporting documentation.  Hewlett-Packard Company makes no
-  -- representations about the suitability of this software for any
-  -- purpose.  It is provided "as is" without express or implied warranty.
-  --
-  -->
-<Head>
-<Title>Iterator Concepts</Title>
-<BODY BGCOLOR="#ffffff" LINK="#0000ee" TEXT="#000000" VLINK="#551a8b" 
-	ALINK="#ff0000"> 
-<IMG SRC="../../../../c++boost.gif" 
-     ALT="C++ Boost" width="277" height="86"> 
-
-<BR Clear>
-
-
-<h1>Iterator Concepts</h1>
-
-<p>The standard iterator categories and requirements are flawed because
-they use a single hierarchy of requirements to address two orthogonal
-issues: <b><i>iterator traversal</i></b> and <b><i>dereference return
-type</i></b>. The current iterator requirement hierarchy is mainly
-geared towards iterator traversal (hence the category names), while
-requirements that address dereference return type sneak in at various
-places. 
-
-<p>
-The iterator requirements should be separated into two hierarchies.
-One set of concepts handles the return type semantics: 
-<ul>
-  <li><a href="#concept:ReadableIterator">Readable Iterator</a></li>
-  <li><a href="#concept:WritableIterator">Writable Iterator</a></li>
-  <li><a href="#concept:SwappableIterator">Swappable Iterator</a></li>
-  <li><a href="#concept:ConstantLvalueIterator">Constant Lvalue Iterator</a></li>
-  <li><a href="#concept:MutableLvalueIterator">Mutable Lvalue Iterator</a></li>
-</ul>
-
-The other set of concepts handles iterator traversal: 
-
-<ul>
-  <li><a href="#concept:ForwardTraversalIterator">Forward Traversal Iterator</a></li>
-  <li><a href="#concept:BidirectionalTraversalIterator">Bidirectional Traversal Iterator</a></li>
-  <li><a href="#concept:RandomAccessTraversalIterator">Random Access Traversal Iterator</a></li>
-</ul>
-
-The current Input Iterator and Output Iterator requirements will
-continue to be used as is. Note that Input Iterator implies Readable
-Iterator and Output Iterator implies Writable Iterator.
-
-<p>
-Note: we considered defining a Single-Pass Iterator, which could be
-combined with Readable or Writable Iterator to replace the Input and
-Output Iterator requirements. We rejected this idea because there are
-some differences between Input and Output Iterators that make it hard
-to merge them: for example Input Iterator requires Equality Comparable
-while Output Iterator does not.
-
-
-<p></p>
-<DIV ALIGN="CENTER"><A NAME="fig:graph-concepts"></A></A>
-<TABLE>
-<CAPTION ALIGN="TOP"><STRONG>Figure 1:</STRONG>
-The iterator concepts and refinement relationships.
-</CAPTION>
-<TR><TD><IMG SRC="./iterator_concepts.gif" ></TD></TR>
-</TABLE>
-</DIV>
-<p></p>
-
-
-<h2>Relationship with the standard iterator concepts</h2>
-
-<p>
-std::Input Iterator implies boost::ReadableIterator.
-
-<p>
-std::Output Iterator implies boost::Writable Iterator.
-
-<p>
-std::Forward Iterator refines boost::Forward Iterator and
-boost::Constant Lvalue Iterator or boost::Mutable Lvalue Iterator.
-
-<p>
-std::Bidirectional Iterator refines boost::Bidirectional Iterator and
-boost::Constant Lvalue Iterator or boost::Mutable Lvalue Iterator.
-
-<p>
-std::Random Access Iterator refines boost::Random Access Iterator and
-boost::Constant Lvalue Iterator or boost::Mutable Lvalue Iterator.
-
-
-<h3>Notation</h3>
-<Table>
-  <tr>
-    <td><tt>X</tt></td>
-    <td>The iterator type.</td>
-  </tr>
-  <tr>
-    <td><tt>T</tt></td>
-    <td>The value type of <tt>X</tt>, i.e., <tt>std::iterator_traits&lt;X&gt;::value_type</tt>.</td>
-  </tr>
-  <tr>
-    <td><tt>x</tt>, <tt>y</tt></td>
-    <td>An object of type <tt>X</tt>.</td>
-  </tr>
-  <tr>
-    <td><tt>t</tt></td>
-    <td>An object of type <tt>T</tt>.</td>
-  </tr>
-</table>
-
-<p>
-
-<hr>
-<!--------------------------------------------------------------------------->
-
-<H3><A NAME="concept:ReadableIterator"></A>
-Readable Iterator
-</H3>
-
-A Readable Iterator is an iterator that dereferences to produce an
-rvalue that is convertible to the <tt>value_type</tt> of the
-iterator. 
-
-<h3>Associated Types</h3>
-
-<Table border>
-
-  <tr>
-    <td>Value type</td>
-    <td><tt>std::iterator_traits&lt;X&gt;::value_type</tt></td>
-    <td>The type of the objects pointed to by the iterator.</td>
-  </tr>
-
-  <tr>
-    <td>Reference type</td>
-    <td><tt>std::iterator_traits&lt;X&gt;::reference</tt></td>
-    <td>
-    The return type of dereferencing the iterator. This
-    type must be convertible to <tt>T</tt>.
-    </td>
-  </tr>
-
-  <tr>
-    <td>Return Category</td>
-    <td><tt>std::return_category&lt;X&gt;::type</tt></td>
-    <td>
-    A type convertible to <tt>std::readable_iterator_tag</tt>
-    </td>
-  </tr>
-
-</Table>
-
-<h3>Refinement of</h3>
-
-<A href="http://www.boost.org/libs/utility/CopyConstructible.html">Copy Constructible</A>
-
-<h3>Valid expressions</h3>
-
-<Table border>
-<tr><TH>Name</TH><TH>Expression</TH><TH>Type requirements</TH><TH>Return type</TH></tr>
-<tr>
- <td>Dereference</td>
- <td><tt>*x</tt></td>
- <td>&nbsp;</td>
- <td><tt>std::iterator_traits&lt;X&gt;::reference</tt></td>
-</tr>
-<tr>
- <td>Member access</td>
- <td><tt>x-&gt;m</tt></td>
- <td><tt>T</tt> is a type with a member named <tt>m</tt>.</td>
- <td>
-If <tt>m</tt> is a data member, the type of <tt>m</tt>.
-If <tt>m</tt> is a member function, the return type of <tt>m</tt>.
- </td>
-</tr>
-</table>
-
-<p>
-
-<hr>
-<!--------------------------------------------------------------------------->
-
-<H3><A NAME="concept:WritableIterator"></A>
-Writable Iterator
-</H3>
-
-A Writable Iterator is an iterator that can be used to store a value
-using the dereference-assignment expression.
-
-<h3>Definitions</h3>
-
-If <tt>x</tt> is an Writable Iterator of type <tt>X</tt>, then the
-expression <tt>*x = a;</tt> stores the value <tt>a</tt> into
-<tt>x</tt>.  Note that <tt>operator=</tt>, like other C++ functions,
-may be overloaded; it may, in fact, even be a template function.  In
-general, then, <tt>a</tt> may be any of several different types.  A
-type <tt>A</tt> belongs to the <i>set of value types</i> of <tt>X</tt>
-if, for an object <tt>a</tt> of type <tt>A</tt>, <tt>*x = a;</tt> is
-well-defined and does not require performing any non-trivial
-conversions on <tt>a</tt>.
-
-<h3>Associated Types</h3>
-
-<Table border>
-
-  <tr>
-    <td>Return Category</td>
-    <td><tt>std::return_category&lt;X&gt;::type</tt></td>
-    <td>
-    A type convertible to <tt>std::writable_iterator_tag</tt>
-    </td>
-  </tr>
-
-</Table>
-
-
-
-<h3>Refinement of</h3>
-
-<A href="http://www.boost.org/libs/utility/CopyConstructible.html">Copy Constructible</A>
-
-<h3>Valid expressions</h3>
-
-<Table border>
-  <tr>
-    <TH>Name</TH><TH>Expression</TH><TH>Return type</TH>
-  </tr>
-  <tr>
-    <td>Dereference assignment</td>
-    <td><tt>*x = a</tt></td>
-    <td>unspecified</td>
-  </tr>
-</table>
-
-<p>
-
-
-<hr>
-<!--------------------------------------------------------------------------->
-
-<H3><A NAME="concept:SwappableIterator"></A>
-Swappable Iterator
-</H3>
-
-A Swappable Iterator is an iterator whose dereferenced values can be
-swapped.
-
-<p>
-Note: the requirements for Swappable Iterator are dependent on the
-issues surrounding <tt>std::swap()</tt> being resolved. Here we assume
-that the issue will be resolved by allowing the overload of
-<tt>std::swap()</tt> for user-defined types.
-
-<p>
-Note: Readable Iterator and Writable Iterator combined implies
-Swappable Iterator because of the fully templated
-<tt>std::swap()</tt>.  However, Swappable Iterator does not imply
-Readable Iterator nor Writable Iterator.
-
-<h3>Associated Types</h3>
-
-<Table border>
-
-  <tr>
-    <td>Return Category</td>
-    <td><tt>std::return_category&lt;X&gt;::type</tt></td>
-    <td>
-    A type convertible to <tt>std::swappable_iterator_tag</tt>
-    </td>
-  </tr>
-
-</Table>
-
-
-<h3>Valid expressions</h3>
-
-Of the two valid expressions listed below, only one <b>OR</b> the
-other is required. If <tt>std::iter_swap()</tt> is overloaded for
-<tt>X</tt> then <tt>std::swap()</tt> is not required. If
-<tt>std::iter_swap()</tt> is not overloaded for <tt>X</tt> then the
-default (fully templated) version is used, which will call
-<tt>std::swap()</tt> (this means changing the current requirements for
-<tt>std::iter_swap()</tt>).
-
-<p>
-<Table border>
-  <tr>
-    <TH>Name</TH><TH>Expression</TH><TH>Return type</TH>
-  </tr>
-
-  <tr>
-    <td>Iterator Swap</td>
-    <td><tt>std::iter_swap(x, y)</tt></td>
-    <td>void</td>
-  </tr>
-
-  <tr>
-    <td>Dereference and Swap</td>
-    <td><tt>std::swap(*x, *y)</tt></td>
-    <td>void</td>
-  </tr>
-
-</table>
-
-<p>
-
-
-<hr>
-<!--------------------------------------------------------------------------->
-
-<H3><A NAME="concept:ConstantLvalueIterator"></A>
-Constant Lvalue Iterator
-</H3>
-
-A Constant Lvalue Iterator is an iterator that dereferences to produce a
-const reference to the pointed-to object, i.e., the associated
-<tt>reference</tt> type is <tt>const T&amp;</tt>. Changing the value
-of or destroying an iterator that models Constant Lvalue Iterator does
-not invalidate pointers and references previously obtained from that
-iterator.
-
- 
-<h3>Refinement of</h3>
-
-<a href="#concept:ReadableIterator">Readable Iterator</a> 
-
-<h3>Associated Types</h3>
-
-<Table border>
-
-  <tr>
-    <td>Reference type</td>
-    <td><tt>std::iterator_traits&lt;X&gt;::reference</tt></td>
-    <td>
-     The return type of dereferencing the iterator, which must be
-     <tt>const T&amp;</tt>.
-    </td>
-  </tr>
-
-<!--  I don't think this is needed
-  <tr>
-    <td>Pointer type</td>
-    <td><tt>std::iterator_traits&lt;X&gt;::pointer</tt></td>
-    <td>
-     The pointer to the value type, which must be <tt>const T*</tt>.
-    </td>
-  </tr>
--->
-
-  <tr>
-    <td>Return Category</td>
-    <td><tt>std::return_category&lt;X&gt;::type</tt></td>
-    <td>
-    A type convertible to <tt>std::constant_lvalue_iterator_tag</tt>
-    </td>
-  </tr>
-
-</table>
-
-<!-- these are not necessary now that we use reference as operator* return type
-<h3>Valid expressions</h3>
-
-<Table border>
-<tr><TH>Name</TH><TH>Expression</TH><TH>Type requirements</TH><TH>Return type</TH></tr>
-<tr>
- <td>Dereference</td>
- <td><tt>*x</tt></td>
- <td>&nbsp;</td>
- <td><tt>std::iterator_traits&lt;X&gt;::reference</tt></td>
-</tr>
-<tr>
- <td>Member access</td>
- <td><tt>x-&gt;m</tt></td>
- <td><tt>T</tt> is a type with a member named <tt>m</tt>.</td>
- <td>
- &nbsp;
- </td>
-</tr>
-</table>
-
--->
-
-<p>
-
-<hr>
-<!--------------------------------------------------------------------------->
-
-<H3><A NAME="concept:MutableLvalueIterator"></A>
-Mutable Lvalue Iterator
-</H3>
-
-A Mutable Lvalue Iterator is an iterator that dereferences to produce a
-reference to the pointed-to object. The associated <tt>reference</tt>
-type is <tt>T&amp;</tt>.  Changing the value of or destroying an
-iterator that models Mutable Lvalue Iterator does not invalidate
-pointers and references previously obtained from that iterator.
- 
-<h3>Refinement of</h3>
-
-<a href="#concept:ReadableIterator">Readable Iterator</a>,
-<a href="#concept:WritableIterator">Writable Iterator</a>,
-and <a href="#concept:SwappableIterator">Swappable Iterator</a>.
-
-
-
-<h3>Associated Types</h3>
-
-<Table border>
-
-  <tr>
-    <td>Reference type</td>
-    <td><tt>std::iterator_traits&lt;X&gt;::reference</tt></td>
-    <td>The return type of dereferencing the iterator, which must be
-     <tt>T&amp;</tt>.</td>
-  </tr>
-
-<!-- I don't think this is necessary
-  <tr>
-    <td>Pointer type</td>
-    <td><tt>std::iterator_traits&lt;X&gt;::pointer</tt></td>
-    <td>
-     The pointer to the value type, which is <tt>T*</tt>.
-    </td>
-  </tr>
--->
-
-  <tr>
-    <td>Return Category</td>
-    <td><tt>std::return_category&lt;X&gt;::type</tt></td>
-    <td>
-    A type convertible to <tt>std::mutable_lvalue_iterator_tag</tt>
-    </td>
-  </tr>
-
-</table>
-
-<!-- no longer needed since the return type is specified as reference in the readable iterator
-<h3>Valid expressions</h3>
-
-<Table border>
-<tr><TH>Name</TH><TH>Expression</TH><TH>Type requirements</TH><TH>Return type</TH></tr>
-<tr>
- <td>Dereference</td>
- <td><tt>*x</tt></td>
- <td>&nbsp;</td>
- <td><tt>std::iterator_traits&lt;X&gt;::reference</tt></td>
-</tr>
-<tr>
- <td>Member access</td>
- <td><tt>x-&gt;m</tt></td>
- <td><tt>T</tt> is a type with a member named <tt>m</tt>.</td>
- <td>
- &nbsp;
- </td>
-</tr>
-</table>
-
--->
-
-<p>
-<hr>
-<!--------------------------------------------------------------------------->
-
-<H3><A NAME="concept:ForwardTraversalIterator"></A>
-Forward Traversal Iterator
-</H3>
-
-The Forward Iterator is an iterator that can be incremented. Also, it
-is permissible to make multiple passes through the iterator's range.
-
-<h3>Refinement of</h3>
-
-<A href="http://www.boost.org/libs/utility/CopyConstructible.html">Copy Constructible</A>,
-<A href="http://www.boost.org/libs/utility/Assignable.html">Assignable</A>,
-<A href="http://www.sgi.com/tech/stl/DefaultConstructible.html">Default Constructible</A>, and 
-<A href="http://www.sgi.com/tech/stl/EqualityComparable.html">Equality Comparable</A>
-
-
-<h3>Associated types</h3>
-
-<Table border>
-
-  <tr>
-    <td>Difference Type</td>
-    <td><tt>std::iterator_traits&lt;X&gt;::difference_type</tt></td>
-    <td>
-    A signed integral type used for representing distances
-    between iterators that point into the same range.
-    </td>
-  </tr>
-
-  <tr>
-    <td>Traversal Category</td>
-    <td><tt>std::traversal_category&lt;X&gt;::type</tt></td>
-    <td>
-    A type convertible to <tt>std::forward_traversal_tag</tt>
-    </td>
-  </tr>
-</Table>
-
-<h3>Valid expressions</h3>
-
-<Table border>
-  <tr>
-    <TH>Name</TH><TH>Expression</TH><TH>Type requirements</TH>
-      <TH>Return type</TH>
-  </tr>
-  <tr>
-    <td>Preincrement</td>
-    <td><tt>++i</tt></td><td>&nbsp;</td><td><tt>X&amp;</tt></td>
-  </tr>
-  <tr>
-    <td>Postincrement</td>
-    <td><tt>i++</tt></td><td>&nbsp;</td><td>convertible to <tt>const X&amp;</tt></td>
-  </tr>
-</Table>
-
-<p>
-<hr>
-<!--------------------------------------------------------------------------->
-
-<H3><A NAME="concept:BidirectionalTraversalIterator"></A>
-Bidirectional Traversal Iterator
-</H3>
-
-An iterator that can be incremented and decremented.
-
-<h3>Refinement of</h3>
-
-<a href="#concept:ForwardTraversalIterator">Forward Traversal Iterator</a>
-
-<h3>Associated types</h3>
-
-<Table border>
-  <tr>
-    <td>Traversal Category</td>
-    <td><tt>std::traversal_category&lt;X&gt;::type</tt></td>
-    <td>
-    A type convertible to <tt>std::bidirectional_traversal_tag</tt>
-    </td>
-  </tr>
-</Table>
-
-<h3>Valid expressions</h3>
-
-<Table border>
-  <tr>
-  <TH>Name</TH><TH>Expression</TH><TH>Type requirements</TH>
-      <TH>Return type</TH>
-  </tr>
-  <tr><td>Predecrement</td>
-      <td><tt>--i</tt></td><td>&nbsp;</td><td><tt>X&amp;</tt></td>
-  </tr>
-  <tr><td>Postdecrement</td>
-      <td><tt>i--</tt></td><td>&nbsp;</td><td>convertible to <tt>const X&amp;</tt></td>
-  </tr>
-</table>
-
-<p>
-<hr>
-<!--------------------------------------------------------------------------->
-
-<H3><A NAME="concept:RandomAccessTraversalIterator"></A>
-Random Access Traversal Iterator
-</H3>
-
-An iterator that provides constant-time methods for moving forward and
-backward in arbitrary-sized steps.
-
-<h3>Refinement of</h3>
-
-<a href="#concept:BidirectionalTraversalIterator">Bidirectional Traversal Iterator</a> and
-<A href="http://www.sgi.com/tech/stl/LessThanComparable.html">Less Than Comparable</A> where <tt>&lt;</tt> is a total ordering
-
-<h3>Associated types</h3>
-
-<Table border>
-  <tr>
-    <td>Traversal Category</td>
-    <td><tt>std::traversal_category&lt;X&gt;::type</tt></td>
-    <td>
-    A type convertible to <tt>std::random_access_traversal_tag</tt>
-    </td>
-  </tr>
-</Table>
-
-<h3>Valid expressions</h3>
-
-<Table border>
-<tr><TH>Name</TH><TH>Expression</TH><TH>Type requirements</TH>
-    <TH>Return type</TH>
-</tr>
-<tr><td>Iterator addition</td>
-    <td><tt>i += n</tt></td><td>&nbsp;</td><td><tt>X&amp;</tt></td>
-</tr>
-<tr><td>Iterator addition</td>
-    <td><tt>i + n</tt> or <tt>n + i</tt></td><td>&nbsp;</td><td><tt>X</tt></td>
-</tr>
-<tr><td>Iterator subtraction</td>
-   <td><tt>i -= n</tt></td><td>&nbsp;</td><td><tt>X&amp;</tt></td>
-</tr>
-<tr><td>Iterator subtraction</td>
-    <td><tt>i - n</tt></td><td>&nbsp;</td><td><tt>X</tt></td>
-</tr>
-<tr><td>Difference</td>
-    <td><tt>i - j</tt></td><td>&nbsp;</td><td><tt>std::iterator_traits&lt;X&gt;::difference_type</tt></td>
-</tr>
-<tr><td>Element operator</td>
-    <td><tt>i[n]</tt></td>
-    <td><tt>X</tt> must also be a model of
-     <a href="#concept:ReadableIterator">Readable Iterator</a>. </td>
-    <td><tt>std::iterator_traits&lt;X&gt;::reference</tt></td>
-</tr>
-<tr><td>Element assignment</td>
-    <td><tt>i[n] = t</tt></td>
-    <td><tt>X</tt> must also be a model of
-      <a href="#concept:WritableIterator">Writable Iterator</a>.</td>
-    <td>unspecified</td>
-</tr>
-</table>
-
-<p>
-
-<HR>
-<TABLE>
-<TR valign=top>
-<TD nowrap>Copyright &copy 2000</TD><TD>
-<A HREF="../../../../people/jeremy_siek.htm">Jeremy Siek</A>, Univ.of Notre Dame (<A HREF="mailto:jsiek@lsc.nd.edu">jsiek@lsc.nd.edu</A>)
-</TD></TR></TABLE>
-
-</body>
-</html>

doc/.cvsignore

@@ -1 +0,0 @@
-GNUmakefile

doc/Jamfile.v2

@@ -13,8 +13,11 @@ boostbook standalone
   : 
     iterator 
   :
+    <xsl:param>boost.root=../../../..
     <xsl:param>toc.max.depth=3
     <xsl:param>toc.section.depth=3
     <xsl:param>chunk.section.depth=4
+    <format>pdf:<xsl:param>boost.url.prefix=http://www.boost.org/doc/libs/release/libs/iterator/doc
   ;
 
+

doc/function_input_iterator.html

@@ -0,0 +1,142 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<meta name="generator" content="Docutils 0.6: http://docutils.sourceforge.net/" />
+<title></title>
+<meta name="author" content="Dean Michael Berris" />
+<link rel="stylesheet" href="../../../rst.css" type="text/css" />
+</head>
+<body>
+<div class="document">
+
+<table class="docinfo" frame="void" rules="none">
+<col class="docinfo-name" />
+<col class="docinfo-content" />
+<tbody valign="top">
+<tr><th class="docinfo-name">Author:</th>
+<td><a class="first reference external" href="mailto:mikhailberis&#64;gmail.com">Dean Michael Berris</a></td></tr>
+<tr class="field"><th class="docinfo-name">License:</th><td class="field-body">Distributed under the Boost Software License, Version 1.0
+(See accompanying file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>)</td>
+</tr>
+</tbody>
+</table>
+<div class="section" id="function-input-iterator">
+<h1>Function Input Iterator</h1>
+<p>The Function Input Iterator allows for creating iterators that encapsulate
+a nullary function object and a state object which tracks the number of times
+the iterator has been incremented. A Function Input Iterator models the
+<a class="reference external" href="http://www.sgi.com/tech/stl/InputIterator.html">InputIterator</a> concept and is useful for creating bounded input iterators.</p>
+<p>Like the Generator Iterator, the Function Input Iterator takes a function
+that models the <a class="reference external" href="http://www.sgi.com/tech/stl/Generator.html">Generator</a> concept (which is basically a nullary or 0-arity
+function object). Each increment of the function Function Input Iterator
+invokes the generator function and stores the value in the iterator. When
+the iterator is dereferenced the stored value is returned.</p>
+<p>The Function Input Iterator encapsulates a state object which models the
+<a class="reference internal" href="#incrementable-concept">Incrementable Concept</a> and the <a class="reference external" href="http://www.sgi.com/tech/stl/EqualityComparable.html">EqualityComparable</a> Concept. These concepts are
+described below as:</p>
+<div class="section" id="incrementable-concept">
+<h2>Incrementable Concept</h2>
+<p>A type models the Incrementable Concept when it supports the pre- and post-
+increment operators. For a given object <tt class="docutils literal"><span class="pre">i</span></tt> with type <tt class="docutils literal"><span class="pre">I</span></tt>, the following
+constructs should be valid:</p>
+<table border="1" class="docutils">
+<colgroup>
+<col width="24%" />
+<col width="46%" />
+<col width="30%" />
+</colgroup>
+<tbody valign="top">
+<tr><td colspan="3">Construct  Description        Return Type</td>
+</tr>
+<tr><td>i++</td>
+<td>Post-increment i.</td>
+<td>I</td>
+</tr>
+<tr><td>++i</td>
+<td>Pre-increment i.</td>
+<td>I&amp;</td>
+</tr>
+</tbody>
+</table>
+<p>NOTE: An Incrementable type should also be <a class="reference external" href="http://www.sgi.com/tech/stl/DefaultConstructible.html">DefaultConstructible</a>.</p>
+</div>
+<div class="section" id="synopsis">
+<h2>Synopsis</h2>
+<pre class="literal-block">
+namespace {
+    template &lt;class Function, class State&gt;
+    class function_input_iterator;
+
+    template &lt;class Function, class State&gt;
+    typename function_input_iterator&lt;Function, State&gt;
+    make_function_input_iterator(Function &amp; f);
+
+    struct infinite;
+}
+</pre>
+</div>
+<div class="section" id="function-input-iterator-class">
+<h2>Function Input Iterator Class</h2>
+<p>The class Function Input Iterator class takes two template parameters
+<tt class="docutils literal"><span class="pre">Function</span></tt> and <tt class="docutils literal"><span class="pre">State</span></tt>. These two template parameters tell the
+Function Input Iterator the type of the function to encapsulate and
+the type of the internal state value to hold.</p>
+<p>The <tt class="docutils literal"><span class="pre">State</span></tt> parameter is important in cases where you want to
+control the type of the counter which determines whether two iterators
+are at the same state. This allows for creating a pair of iterators which
+bound the range of the invocations of the encapsulated functions.</p>
+</div>
+<div class="section" id="examples">
+<h2>Examples</h2>
+<p>The following example shows how we use the function input iterator class
+in cases where we want to create bounded (lazy) generated ranges.</p>
+<pre class="literal-block">
+struct generator {
+    typedef int result_type;
+    generator() { srand(time(0)); }
+    result_type operator() () const {
+        return rand();
+    }
+};
+
+int main(int argc, char * argv[]) {
+    generator f;
+    copy(
+            make_function_input_iterator(f, 0),
+            make_function_input_iterator(f, 10),
+            ostream_iterator&lt;int&gt;(cout, &quot; &quot;)
+        );
+    return 0;
+}
+</pre>
+<p>Here we can see that we've bounded the number of invocations using an <tt class="docutils literal"><span class="pre">int</span></tt>
+that counts from <tt class="docutils literal"><span class="pre">0</span></tt> to <tt class="docutils literal"><span class="pre">10</span></tt>. Say we want to create an endless stream
+of random numbers and encapsulate that in a pair of integers, we can do
+it with the <tt class="docutils literal"><span class="pre">boost::infinite</span></tt> helper class.</p>
+<pre class="literal-block">
+copy(
+        make_function_input_iterator(f,infinite()),
+        make_function_input_iterator(f,infinite()),
+        ostream_iterator&lt;int&gt;(count, &quot; &quot;)
+    );
+</pre>
+<p>Above, instead of creating a huge vector we rely on the STL copy algorithm
+to traverse the function input iterator and call the function object f
+as it increments the iterator. The special property of <tt class="docutils literal"><span class="pre">boost::infinite</span></tt>
+is that equating two instances always yield false -- and that incrementing
+an instance of <tt class="docutils literal"><span class="pre">boost::infinite</span></tt> doesn't do anything. This is an efficient
+way of stating that the iterator range provided by two iterators with an
+encapsulated infinite state will definitely be infinite.</p>
+</div>
+</div>
+</div>
+<div class="footer">
+<hr class="footer" />
+<a class="reference external" href="function_input_iterator.rst">View document source</a>.
+Generated by <a class="reference external" href="http://docutils.sourceforge.net/">Docutils</a> from <a class="reference external" href="http://docutils.sourceforge.net/rst.html">reStructuredText</a> source.
+
+</div>
+</body>
+</html>

doc/function_input_iterator.rst

@@ -0,0 +1,132 @@
+:Author:
+    `Dean Michael Berris <mailto:me@deanberris.com>`_
+
+:License:
+    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)
+
+:Copyright:
+    Copyright 2012 Google, Inc.
+
+Function Input Iterator
+=======================
+
+The Function Input Iterator allows for creating iterators that encapsulate
+a nullary function object and a state object which tracks the number of times
+the iterator has been incremented. A Function Input Iterator models the
+`InputIterator`_ concept and is useful for creating bounded input iterators.
+
+.. _InputIterator: http://www.sgi.com/tech/stl/InputIterator.html
+
+The Function Input Iterator takes a function that models the Generator_ concept
+(which is basically a nullary or 0-arity function object). The first dereference
+of the iterator at a given position invokes the generator function and stores
+and returns the result; subsequent dereferences at the same position simply
+return the same stored result. Incrementing the iterator places it at a new
+position, hence a subsequent dereference will generate a new value via another
+invokation of the generator function. This ensures the generator function is
+invoked precisely when the iterator is requested to return a (new) value.
+
+.. _Generator: http://www.sgi.com/tech/stl/Generator.html
+
+The Function Input Iterator encapsulates a state object which models the
+`Incrementable Concept`_ and the EqualityComparable_ Concept. These concepts are
+described below as:
+
+.. _EqualityComparable: http://www.sgi.com/tech/stl/EqualityComparable.html
+
+Incrementable Concept
+---------------------
+
+A type models the Incrementable Concept when it supports the pre- and post-
+increment operators. For a given object ``i`` with type ``I``, the following 
+constructs should be valid:
+
+=========  =================  ===========
+Construct  Description        Return Type
+-----------------------------------------
+i++        Post-increment i.  I
+++i        Pre-increment i.   I&
+=========  =================  ===========
+
+NOTE: An Incrementable type should also be DefaultConstructible_.
+
+.. _DefaultConstructible: http://www.sgi.com/tech/stl/DefaultConstructible.html
+
+Synopsis
+--------
+
+::
+
+    namespace {
+        template <class Function, class State>
+        class function_input_iterator;
+
+        template <class Function, class State>
+        typename function_input_iterator<Function, State>
+        make_function_input_iterator(Function & f, State s);
+
+        struct infinite;
+    }
+
+Function Input Iterator Class
+-----------------------------
+
+The class Function Input Iterator class takes two template parameters
+``Function`` and ``State``. These two template parameters tell the
+Function Input Iterator the type of the function to encapsulate and
+the type of the internal state value to hold.
+
+The ``State`` parameter is important in cases where you want to
+control the type of the counter which determines whether two iterators 
+are at the same state. This allows for creating a pair of iterators which 
+bound the range of the invocations of the encapsulated functions.
+
+Examples
+--------
+
+The following example shows how we use the function input iterator class
+in cases where we want to create bounded (lazy) generated ranges.
+
+::
+
+    struct generator {
+        typedef int result_type;
+        generator() { srand(time(0)); }
+        result_type operator() () const {
+            return rand();
+        }
+    };
+
+    int main(int argc, char * argv[]) {
+        generator f;
+        copy(
+                make_function_input_iterator(f, 0),
+                make_function_input_iterator(f, 10),
+                ostream_iterator<int>(cout, " ")
+            );
+        return 0;
+    }
+
+Here we can see that we've bounded the number of invocations using an ``int``
+that counts from ``0`` to ``10``. Say we want to create an endless stream
+of random numbers and encapsulate that in a pair of integers, we can do
+it with the ``boost::infinite`` helper class.
+
+::
+
+    copy(
+            make_function_input_iterator(f,infinite()),
+            make_function_input_iterator(f,infinite()),
+            ostream_iterator<int>(cout, " ")
+        );
+   
+Above, instead of creating a huge vector we rely on the STL copy algorithm
+to traverse the function input iterator and call the function object f
+as it increments the iterator. The special property of ``boost::infinite``
+is that equating two instances always yield false -- and that incrementing
+an instance of ``boost::infinite`` doesn't do anything. This is an efficient
+way of stating that the iterator range provided by two iterators with an
+encapsulated infinite state will definitely be infinite.
+
+

doc/index.html

@@ -3,7 +3,7 @@
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<meta name="generator" content="Docutils 0.5: http://docutils.sourceforge.net/" />
+<meta name="generator" content="Docutils 0.6: http://docutils.sourceforge.net/" />
 <title>The Boost.Iterator Library Boost</title>
 <link rel="stylesheet" href="../../../rst.css" type="text/css" />
 </head>
@@ -11,9 +11,6 @@
 <div class="document" id="the-boost-iterator-library-logo">
 <h1 class="title">The Boost.Iterator Library <a class="reference external" href="../../../index.htm"><img alt="Boost" src="../../../boost.png" /></a></h1>
 
-<!-- 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) -->
 <!-- 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) -->
@@ -40,7 +37,7 @@ Lab</a>, <a class="reference external" href="http://www.styleadvisor.com">Zephyr
 <col class="field-body" />
 <tbody valign="top">
 <tr class="field"><th class="field-name">Abstract:</th><td class="field-body">The Boost Iterator Library contains two parts. The first
-is a system of <a class="reference external" href="../../../more/generic_programming.html#concept">concepts</a> which extend the C++ standard
+is a system of <a class="reference external" href="http://www.boost.org/more/generic_programming.html#concept">concepts</a> which extend the C++ standard
 iterator requirements. The second is a framework of
 components for building iterators based on these
 extended concepts and includes several useful iterator
@@ -60,21 +57,21 @@ older Boost Iterator Adaptor Library.</td>
 <div class="contents topic" id="table-of-contents">
 <p class="topic-title first"><strong>Table of Contents</strong></p>
 <ul class="simple">
-<li><a class="reference internal" href="#new-style-iterators" id="id22">New-Style Iterators</a></li>
-<li><a class="reference internal" href="#iterator-facade-and-adaptor" id="id23">Iterator Facade and Adaptor</a></li>
-<li><a class="reference internal" href="#specialized-adaptors" id="id24">Specialized Adaptors</a></li>
-<li><a class="reference internal" href="#iterator-utilities" id="id25">Iterator Utilities</a><ul>
-<li><a class="reference internal" href="#traits" id="id26">Traits</a></li>
-<li><a class="reference internal" href="#testing-and-concept-checking" id="id27">Testing and Concept Checking</a></li>
+<li><a class="reference internal" href="#new-style-iterators" id="id23">New-Style Iterators</a></li>
+<li><a class="reference internal" href="#iterator-facade-and-adaptor" id="id24">Iterator Facade and Adaptor</a></li>
+<li><a class="reference internal" href="#specialized-adaptors" id="id25">Specialized Adaptors</a></li>
+<li><a class="reference internal" href="#iterator-utilities" id="id26">Iterator Utilities</a><ul>
+<li><a class="reference internal" href="#traits" id="id27">Traits</a></li>
+<li><a class="reference internal" href="#testing-and-concept-checking" id="id28">Testing and Concept Checking</a></li>
 </ul>
 </li>
-<li><a class="reference internal" href="#upgrading-from-the-old-boost-iterator-adaptor-library" id="id28">Upgrading from the old Boost Iterator Adaptor Library</a></li>
-<li><a class="reference internal" href="#history" id="id29">History</a></li>
+<li><a class="reference internal" href="#upgrading-from-the-old-boost-iterator-adaptor-library" id="id29">Upgrading from the old Boost Iterator Adaptor Library</a></li>
+<li><a class="reference internal" href="#history" id="id30">History</a></li>
 </ul>
 </div>
 <hr class="docutils" />
 <div class="section" id="new-style-iterators">
-<h1><a class="toc-backref" href="#id22">New-Style Iterators</a></h1>
+<h1><a class="toc-backref" href="#id23">New-Style Iterators</a></h1>
 <p>The iterator categories defined in C++98 are extremely limiting
 because they bind together two orthogonal concepts: traversal and
 element access.  For example, because a random access iterator is
@@ -93,7 +90,7 @@ concepts, see our</p>
 <a class="reference external" href="new-iter-concepts.html">Standard Proposal For New-Style Iterators</a> (<a class="reference external" href="new-iter-concepts.pdf">PDF</a>)</blockquote>
 </div>
 <div class="section" id="iterator-facade-and-adaptor">
-<h1><a class="toc-backref" href="#id23">Iterator Facade and Adaptor</a></h1>
+<h1><a class="toc-backref" href="#id24">Iterator Facade and Adaptor</a></h1>
 <p>Writing standard-conforming iterators is tricky, but the need comes
 up often.  In order to ease the implementation of new iterators,
 the Boost.Iterator library provides the <tt class="docutils literal"><span class="pre">iterator_facade</span></tt> class template,
@@ -120,7 +117,7 @@ and accepted into the first C++ technical report; see our</p>
 <p>for more details.</p>
 </div>
 <div class="section" id="specialized-adaptors">
-<h1><a class="toc-backref" href="#id24">Specialized Adaptors</a></h1>
+<h1><a class="toc-backref" href="#id25">Specialized Adaptors</a></h1>
 <p>The iterator library supplies a useful suite of standard-conforming
 iterator templates based on the Boost <a class="reference internal" href="#iterator-facade-and-adaptor">iterator facade and adaptor</a>.</p>
 <ul class="simple">
@@ -128,6 +125,9 @@ iterator templates based on the Boost <a class="reference internal" href="#itera
 Implements a &quot;lazy sequence&quot;</li>
 <li><a class="reference external" href="filter_iterator.html"><tt class="docutils literal"><span class="pre">filter_iterator</span></tt></a> (<a class="reference external" href="filter_iterator.pdf">PDF</a>): an iterator over the subset of elements of some
 sequence which satisfy a given predicate</li>
+<li><a class="reference external" href="function_input_iterator.html"><tt class="docutils literal"><span class="pre">function_input_iterator</span></tt></a> (<a class="reference external" href="function_input_iterator.pdf">PDF</a>): an input iterator wrapping a generator (nullary
+function object); each time the iterator is dereferenced, the function object
+is called to get the value to return.</li>
 <li><a class="reference external" href="function_output_iterator.html"><tt class="docutils literal"><span class="pre">function_output_iterator</span></tt></a> (<a class="reference external" href="function_output_iterator.pdf">PDF</a>): an output iterator wrapping a unary function
 object; each time an element is written into the dereferenced
 iterator, it is passed as a parameter to the function object.</li>
@@ -149,9 +149,9 @@ positions of heterogeneous underlying iterators.</li>
 </ul>
 </div>
 <div class="section" id="iterator-utilities">
-<h1><a class="toc-backref" href="#id25">Iterator Utilities</a></h1>
+<h1><a class="toc-backref" href="#id26">Iterator Utilities</a></h1>
 <div class="section" id="traits">
-<h2><a class="toc-backref" href="#id26">Traits</a></h2>
+<h2><a class="toc-backref" href="#id27">Traits</a></h2>
 <ul class="simple">
 <li><a class="reference external" href="pointee.html"><tt class="docutils literal"><span class="pre">pointee.hpp</span></tt></a> (<a class="reference external" href="pointee.pdf">PDF</a>): Provides the capability to deduce the referent types
 of pointers, smart pointers and iterators in generic code.  Used
@@ -165,7 +165,7 @@ testing iterator interoperability -->
 <!-- comment! __ interoperable.pdf -->
 </div>
 <div class="section" id="testing-and-concept-checking">
-<h2><a class="toc-backref" href="#id27">Testing and Concept Checking</a></h2>
+<h2><a class="toc-backref" href="#id28">Testing and Concept Checking</a></h2>
 <ul class="simple">
 <li><a class="reference external" href="iterator_concepts.html"><tt class="docutils literal"><span class="pre">iterator_concepts.hpp</span></tt></a> (<a class="reference external" href="iterator_concepts.pdf">PDF</a>): Concept checking classes for the new iterator concepts.</li>
 <li><a class="reference external" href="iterator_archetypes.html"><tt class="docutils literal"><span class="pre">iterator_archetypes.hpp</span></tt></a> (<a class="reference external" href="iterator_archetypes.pdf">PDF</a>): Concept archetype classes for the new iterators concepts.</li>
@@ -173,17 +173,17 @@ testing iterator interoperability -->
 </div>
 </div>
 <div class="section" id="upgrading-from-the-old-boost-iterator-adaptor-library">
-<h1><a class="toc-backref" href="#id28">Upgrading from the old Boost Iterator Adaptor Library</a></h1>
+<h1><a class="toc-backref" href="#id29">Upgrading from the old Boost Iterator Adaptor Library</a></h1>
 <p id="upgrading">If you have been using the old Boost Iterator Adaptor library to
 implement iterators, you probably wrote a <tt class="docutils literal"><span class="pre">Policies</span></tt> class which
 captures the core operations of your iterator.  In the new library
 design, you'll move those same core operations into the body of the
 iterator class itself.  If you were writing a family of iterators,
-you probably wrote a <a class="reference external" href="../../../more/generic_programming.html#type_generator">type generator</a> to build the
+you probably wrote a <a class="reference external" href="http://www.boost.org/more/generic_programming.html#type_generator">type generator</a> to build the
 <tt class="docutils literal"><span class="pre">iterator_adaptor</span></tt> specialization you needed; in the new library
 design you don't need a type generator (though may want to keep it
 around as a compatibility aid for older code) because, due to the
-use of the Curiously Recurring Template Pattern (CRTP) <a class="citation-reference" href="#cop95" id="id21">[Cop95]</a>,
+use of the Curiously Recurring Template Pattern (CRTP) <a class="citation-reference" href="#cop95" id="id22">[Cop95]</a>,
 you can now define the iterator class yourself and acquire
 functionality through inheritance from <tt class="docutils literal"><span class="pre">iterator_facade</span></tt> or
 <tt class="docutils literal"><span class="pre">iterator_adaptor</span></tt>.  As a result, you also get much finer control
@@ -198,7 +198,7 @@ type, <tt class="docutils literal"><span class="pre">transform_iterator</span></
 <tt class="docutils literal"><span class="pre">projection_iterator</span></tt> used to.</p>
 </div>
 <div class="section" id="history">
-<h1><a class="toc-backref" href="#id29">History</a></h1>
+<h1><a class="toc-backref" href="#id30">History</a></h1>
 <p>In 2000 Dave Abrahams was writing an iterator for a container of
 pointers, which would access the pointed-to elements when
 dereferenced.  Naturally, being a library writer, he decided to
@@ -226,7 +226,7 @@ library you see today.</p>
 <table class="docutils citation" frame="void" id="cop95" rules="none">
 <colgroup><col class="label" /><col /></colgroup>
 <tbody valign="top">
-<tr><td class="label"><a class="fn-backref" href="#id21">[Cop95]</a></td><td>[Coplien, 1995] Coplien, J., Curiously Recurring Template
+<tr><td class="label"><a class="fn-backref" href="#id22">[Cop95]</a></td><td>[Coplien, 1995] Coplien, J., Curiously Recurring Template
 Patterns, C++ Report, February 1995, pp. 24-27.</td></tr>
 </tbody>
 </table>

doc/index.rst

@@ -43,7 +43,7 @@ __ ../../../index.htm
            The components of the Boost Iterator Library replace the
            older Boost Iterator Adaptor Library.
 
-.. _concepts: ../../../more/generic_programming.html#concept
+.. _concepts: http://www.boost.org/more/generic_programming.html#concept
 
 .. contents:: **Table of Contents**
 
@@ -138,7 +138,11 @@ iterator templates based on the Boost `iterator facade and adaptor`_.
 * |filter|_ (PDF__): an iterator over the subset of elements of some
   sequence which satisfy a given predicate
 
-* |function|_ (PDF__): an output iterator wrapping a unary function
+* |function_input|_ (PDF__): an input iterator wrapping a generator (nullary
+  function object); each time the iterator is dereferenced, the function object
+  is called to get the value to return.
+
+* |function_output|_ (PDF__): an output iterator wrapping a unary function
   object; each time an element is written into the dereferenced
   iterator, it is passed as a parameter to the function object.
 
@@ -171,8 +175,12 @@ __ counting_iterator.pdf
 .. _filter: filter_iterator.html
 __ filter_iterator.pdf
 
-.. |function| replace:: ``function_output_iterator``
-.. _function: function_output_iterator.html
+.. |function_input| replace:: ``function_input_iterator``
+.. _function_input: function_input_iterator.html
+__ function_input_iterator.pdf
+
+.. |function_output| replace:: ``function_output_iterator``
+.. _function_output: function_output_iterator.html
 __ function_output_iterator.pdf
 
 .. |indirect| replace:: ``indirect_iterator``
@@ -271,7 +279,7 @@ over how your iterator works: you can add additional constructors,
 or even override the iterator functionality provided by the
 library.
 
-.. _`type generator`: ../../../more/generic_programming.html#type_generator
+.. _`type generator`: http://www.boost.org/more/generic_programming.html#type_generator
 
 If you're looking for the old ``projection_iterator`` component,
 its functionality has been merged into ``transform_iterator``: as

doc/iterator_facade.html

@@ -866,7 +866,7 @@ operator -(iterator_facade<Dr1,V1,TC1,R1,D1> const& lhs,
 <p>In this section we'll walk through the implementation of a few
 iterators using <tt class="docutils literal"><span class="pre">iterator_facade</span></tt>, based around the simple
 example of a linked list of polymorphic objects.  This example was
-inspired by a <a class="reference external" href="http://thread.gmane.org/gmane.comp.lib.boost.user/5100">posting</a> by Keith Macdonald on the <a class="reference external" href="../../../more/mailing_lists.htm#users">Boost-Users</a>
+inspired by a <a class="reference external" href="http://thread.gmane.org/gmane.comp.lib.boost.user/5100">posting</a> by Keith Macdonald on the <a class="reference external" href="http://www.boost.org/more/mailing_lists.htm#users">Boost-Users</a>
 mailing list.</p>
 <div class="section" id="the-problem">
 <h2><a class="toc-backref" href="#id32">The Problem</a></h2>

doc/iterator_facade_ref.rst

@@ -106,7 +106,7 @@ The ``iterator_category`` member of ``iterator_facade`` is
 
 .. parsed-literal::
 
-  *iterator-category*\ (CategoryOrTraversal, value_type, reference)
+  *iterator-category*\ (CategoryOrTraversal, reference, value_type)
 
 where *iterator-category* is defined as follows:
 

doc/iterator_facade_tutorial.rst

@@ -8,7 +8,7 @@ example of a linked list of polymorphic objects.  This example was
 inspired by a `posting`__ by Keith Macdonald on the `Boost-Users`_
 mailing list.
 
-.. _`Boost-Users`: ../../../more/mailing_lists.htm#users
+.. _`Boost-Users`: http://www.boost.org/more/mailing_lists.htm#users
 
 __ http://thread.gmane.org/gmane.comp.lib.boost.user/5100
 

doc/quickbook/facade_tutorial.qbk

@@ -7,7 +7,7 @@ example of a linked list of polymorphic objects.  This example was
 inspired by a 
 [@http://thread.gmane.org/gmane.comp.lib.boost.user/5100 `posting`]
 by Keith Macdonald on the 
-[@../../../more/mailing_lists.htm#users `Boost-Users`]
+[@http://www.boost.org/more/mailing_lists.htm#users `Boost-Users`]
 mailing list.
 
 

doc/quickbook/iterator.qbk

@@ -32,7 +32,7 @@
 
 [section:intro Introduction]
 
-[def _concepts_ [@../../more/generic_programming.html#concept concepts]]
+[def _concepts_ [@http://www.boost.org/more/generic_programming.html#concept concepts]]
 
 The Boost Iterator Library contains two parts. The first
 is a system of _concepts_ which extend the C++ standard
@@ -203,7 +203,7 @@ templates.
 
 [section:upgrading Upgrading from the old Boost Iterator Adaptor Library]
 
-[def _type_generator_ [@../../more/generic_programming.html#type_generator type generator]]
+[def _type_generator_ [@http://www.boost.org/more/generic_programming.html#type_generator type generator]]
 
 If you have been using the old Boost Iterator Adaptor library to
 implement iterators, you probably wrote a `Policies` class which

doc/sources.py

@@ -6,6 +6,7 @@ sources = [
 'counting_iterator.rst',
 'facade-and-adaptor.rst',
 'filter_iterator.rst',
+'function_input_iterator.rst',
 'function_output_iterator.rst',
 'index.rst',
 'indirect_iterator.rst',

doc/transform_iterator.html

@@ -99,7 +99,7 @@ private:
 </pre>
 <p>If <tt class="docutils literal"><span class="pre">Reference</span></tt> is <tt class="docutils literal"><span class="pre">use_default</span></tt> then the <tt class="docutils literal"><span class="pre">reference</span></tt> member of
 <tt class="docutils literal"><span class="pre">transform_iterator</span></tt> is
-<tt class="docutils literal"><span class="pre">result_of&lt;UnaryFunction(iterator_traits&lt;Iterator&gt;::reference)&gt;::type</span></tt>.
+<tt class="docutils literal"><span class="pre">result_of&lt;const UnaryFunction(iterator_traits&lt;Iterator&gt;::reference)&gt;::type</span></tt>.
 Otherwise, <tt class="docutils literal"><span class="pre">reference</span></tt> is <tt class="docutils literal"><span class="pre">Reference</span></tt>.</p>
 <p>If <tt class="docutils literal"><span class="pre">Value</span></tt> is <tt class="docutils literal"><span class="pre">use_default</span></tt> then the <tt class="docutils literal"><span class="pre">value_type</span></tt> member is
 <tt class="docutils literal"><span class="pre">remove_cv&lt;remove_reference&lt;reference&gt;</span> <span class="pre">&gt;::type</span></tt>.  Otherwise,
@@ -117,10 +117,10 @@ convertible to <tt class="docutils literal"><span class="pre">input_iterator_tag
 <div class="section" id="transform-iterator-requirements">
 <h1><a class="toc-backref" href="#id3"><tt class="docutils literal"><span class="pre">transform_iterator</span></tt> requirements</a></h1>
 <p>The type <tt class="docutils literal"><span class="pre">UnaryFunction</span></tt> must be Assignable, Copy Constructible, and
-the expression <tt class="docutils literal"><span class="pre">f(*i)</span></tt> must be valid where <tt class="docutils literal"><span class="pre">f</span></tt> is an object of
+the expression <tt class="docutils literal"><span class="pre">f(*i)</span></tt> must be valid where <tt class="docutils literal"><span class="pre">f</span></tt> is a const object of
 type <tt class="docutils literal"><span class="pre">UnaryFunction</span></tt>, <tt class="docutils literal"><span class="pre">i</span></tt> is an object of type <tt class="docutils literal"><span class="pre">Iterator</span></tt>, and
 where the type of <tt class="docutils literal"><span class="pre">f(*i)</span></tt> must be
-<tt class="docutils literal"><span class="pre">result_of&lt;UnaryFunction(iterator_traits&lt;Iterator&gt;::reference)&gt;::type</span></tt>.</p>
+<tt class="docutils literal"><span class="pre">result_of&lt;const UnaryFunction(iterator_traits&lt;Iterator&gt;::reference)&gt;::type</span></tt>.</p>
 <p>The argument <tt class="docutils literal"><span class="pre">Iterator</span></tt> shall model Readable Iterator.</p>
 </div>
 <div class="section" id="transform-iterator-models">

doc/transform_iterator_ref.rst

@@ -41,7 +41,7 @@
 
 If ``Reference`` is ``use_default`` then the ``reference`` member of
 ``transform_iterator`` is
-``result_of<UnaryFunction(iterator_traits<Iterator>::reference)>::type``.
+``result_of<const UnaryFunction(iterator_traits<Iterator>::reference)>::type``.
 Otherwise, ``reference`` is ``Reference``.
 
 If ``Value`` is ``use_default`` then the ``value_type`` member is
@@ -64,10 +64,10 @@ convertible to ``input_iterator_tag``.
 ...................................
 
 The type ``UnaryFunction`` must be Assignable, Copy Constructible, and
-the expression ``f(*i)`` must be valid where ``f`` is an object of
+the expression ``f(*i)`` must be valid where ``f`` is a const object of
 type ``UnaryFunction``, ``i`` is an object of type ``Iterator``, and
 where the type of ``f(*i)`` must be
-``result_of<UnaryFunction(iterator_traits<Iterator>::reference)>::type``.
+``result_of<const UnaryFunction(iterator_traits<Iterator>::reference)>::type``.
 
 The argument ``Iterator`` shall model Readable Iterator.  
 

include/boost/iterator.hpp

@@ -1,4 +1,4 @@
-//  interator.hpp workarounds for non-conforming standard libraries  ---------//
+//  iterator.hpp workarounds for non-conforming standard libraries  ---------//
 
 //  (C) Copyright Beman Dawes 2000. Distributed under the Boost
 //  Software License, Version 1.0. (See accompanying file

include/boost/iterator/detail/config_def.hpp

@@ -47,9 +47,11 @@
 #endif
 
 #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)                                       \
-    || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x531))                   \
+    || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x5A0))                   \
     || (BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION, <= 700) && defined(_MSC_VER)) \
-    || BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042))
+    || BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042))                \
+    || BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x590))
+    
 # define BOOST_NO_LVALUE_RETURN_DETECTION
 
 # if 0 // test code

include/boost/iterator/detail/facade_iterator_category.hpp

@@ -73,15 +73,8 @@ struct iterator_writability_disabled
 // Convert an iterator_facade's traversal category, Value parameter,
 // and ::reference type to an appropriate old-style category.
 //
-// If writability has been disabled per the above metafunction, the
-// result will not be convertible to output_iterator_tag.
-//
-// Otherwise, if Traversal == single_pass_traversal_tag, the following
-// conditions will result in a tag that is convertible both to
-// input_iterator_tag and output_iterator_tag:
-//
-//    1. Reference is a reference to non-const
-//    2. Reference is not a reference and is convertible to Value
+// Due to changeset 21683, this now never results in a category convertible
+// to output_iterator_tag.
 //
 template <class Traversal, class ValueParam, class Reference>
 struct iterator_facade_default_category

include/boost/iterator/detail/operator_brackets_dispatch.hpp

@@ -0,0 +1,88 @@
+// (C) Copyright David Abrahams 2002.
+// (C) Copyright Jeremy Siek    2002.
+// (C) Copyright Thomas Witt    2002.
+// (C) Copyright Jeffrey Lee Hellrung, Jr. 2012.
+// 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)
+#ifndef BOOST_OPERATOR_BRACKETS_DISPATCH_07102012JLH_HPP
+#define BOOST_OPERATOR_BRACKETS_DISPATCH_07102012JLH_HPP
+
+#include <boost/iterator/detail/facade_iterator_category.hpp>
+
+#include <boost/type_traits/is_pod.hpp>
+#include <boost/type_traits/remove_const.hpp>
+
+#include <boost/mpl/if.hpp>
+
+namespace boost { namespace detail {
+
+// operator[] must return a proxy in case iterator destruction invalidates
+// referents.
+// To see why, consider the following implementation of operator[]:
+//   reference operator[](difference_type n) const
+//   { return *(*this + n); }
+// The problem here is that operator[] would return a reference created from
+// a temporary iterator.
+
+template <class Value>
+struct operator_brackets_value
+{
+    typedef Value result_type;
+    template <class Iterator>
+    static result_type apply(Iterator const & i)
+    { return *i; }
+};
+
+template <class Iterator, class Reference>
+struct operator_brackets_const_proxy
+{
+    class result_type
+    {
+        Iterator const m_i;
+        explicit result_type(Iterator const & i) : m_i(i) { }
+        friend struct operator_brackets_const_proxy;
+        void operator=(result_type&);
+    public:
+        operator Reference() const { return *m_i; }
+    };
+    static result_type apply(Iterator const & i)
+    { return result_type(i); }
+};
+
+template <class Iterator, class Reference>
+struct operator_brackets_proxy
+{
+    class result_type
+    {
+        Iterator const m_i;
+        explicit result_type(Iterator const & i) : m_i(i) { }
+        friend struct operator_brackets_proxy;
+        void operator=(result_type&);
+    public:
+        operator Reference() const { return *m_i; }
+        operator_brackets_proxy const & operator=(
+          typename Iterator::value_type const & x) const
+        { *m_i = x; return *this; }
+    };
+    static result_type apply(Iterator const & i)
+    { return result_type(i); }
+};
+
+template <class Iterator, class ValueType, class Reference>
+struct operator_brackets_dispatch
+{
+    typedef typename mpl::if_c<
+        iterator_writability_disabled<ValueType,Reference>::value,
+        typename mpl::if_c<
+            boost::is_POD<ValueType>::value,
+            operator_brackets_value<typename boost::remove_const<ValueType>::type>,
+            operator_brackets_const_proxy<Iterator,Reference>
+        >::type,
+        operator_brackets_proxy<Iterator,Reference>
+    >::type type;
+};
+
+} } // namespace detail / namespace boost
+
+#endif // #ifndef BOOST_OPERATOR_BRACKETS_DISPATCH_07102012JLH_HPP

include/boost/iterator/function_input_iterator.hpp

@@ -0,0 +1,160 @@
+// Copyright 2009 (C) Dean Michael Berris <me@deanberris.com>
+// Copyright 2012 (C) Google, Inc.
+// Copyright 2012 (C) Jeffrey Lee Hellrung, Jr.
+// 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)
+//
+
+#ifndef BOOST_FUNCTION_INPUT_ITERATOR
+#define BOOST_FUNCTION_INPUT_ITERATOR
+
+#include <boost/assert.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/function_types/is_function_pointer.hpp>
+#include <boost/function_types/is_function_reference.hpp>
+#include <boost/function_types/result_type.hpp>
+#include <boost/iterator/iterator_facade.hpp>
+#include <boost/none.hpp>
+#include <boost/optional/optional.hpp>
+
+namespace boost {
+
+    namespace impl {
+
+        template <class Function, class Input>
+        class function_input_iterator
+            : public iterator_facade<
+            function_input_iterator<Function, Input>,
+            typename Function::result_type,
+            single_pass_traversal_tag,
+            typename Function::result_type const &
+            >
+        {
+        public:
+            function_input_iterator() {}
+            function_input_iterator(Function & f_, Input state_ = Input()) 
+                : f(&f_), state(state_) {}
+
+            void increment() {
+                if(value)
+                    value = none;
+                else
+                    (*f)();
+                ++state;
+            }
+
+            typename Function::result_type const & 
+                dereference() const {
+                    return (value ? value : value = (*f)()).get();
+            }
+
+            bool equal(function_input_iterator const & other) const {
+                return f == other.f && state == other.state;
+            }
+
+        private:
+            Function * f;
+            Input state;
+            mutable optional<typename Function::result_type> value;
+        };
+
+        template <class Function, class Input>
+        class function_pointer_input_iterator
+            : public iterator_facade<
+            function_pointer_input_iterator<Function, Input>,
+            typename function_types::result_type<Function>::type,
+            single_pass_traversal_tag,
+            typename function_types::result_type<Function>::type const &
+            >
+        {
+        public:
+            function_pointer_input_iterator() {}
+            function_pointer_input_iterator(Function &f_, Input state_ = Input())
+                : f(f_), state(state_) {}
+
+            void increment() {
+                if(value)
+                    value = none;
+                else
+                    (*f)();
+                ++state;
+            }
+
+            typename function_types::result_type<Function>::type const &
+                dereference() const {
+                    return (value ? value : value = (*f)()).get();
+            }
+
+            bool equal(function_pointer_input_iterator const & other) const {
+                return f == other.f && state == other.state;
+            }
+
+        private:
+            Function f;
+            Input state;
+            mutable optional<typename function_types::result_type<Function>::type> value;
+        };
+
+        template <class Function, class Input>
+        class function_reference_input_iterator
+            : public function_pointer_input_iterator<Function*,Input>
+        {
+        public:
+            function_reference_input_iterator(Function & f_, Input state_ = Input())
+                : function_pointer_input_iterator<Function*,Input>(&f_, state_)
+            {}
+        };
+
+    } // namespace impl
+
+    template <class Function, class Input>
+    class function_input_iterator 
+        : public mpl::if_<
+            function_types::is_function_pointer<Function>,
+            impl::function_pointer_input_iterator<Function,Input>,
+            typename mpl::if_<
+                function_types::is_function_reference<Function>,
+                impl::function_reference_input_iterator<Function,Input>,
+                impl::function_input_iterator<Function,Input>
+            >::type
+        >::type
+    {
+        typedef typename mpl::if_<
+            function_types::is_function_pointer<Function>,
+            impl::function_pointer_input_iterator<Function,Input>,
+            typename mpl::if_<
+                function_types::is_function_reference<Function>,
+                impl::function_reference_input_iterator<Function,Input>,
+                impl::function_input_iterator<Function,Input>
+            >::type
+        >::type base_type;
+    public:
+        function_input_iterator(Function & f, Input i)
+            : base_type(f, i) {}
+    };
+
+    template <class Function, class Input>
+    inline function_input_iterator<Function, Input>
+        make_function_input_iterator(Function & f, Input state) {
+            typedef function_input_iterator<Function, Input> result_t;
+            return result_t(f, state);
+    }
+
+    template <class Function, class Input>
+    inline function_input_iterator<Function*, Input>
+        make_function_input_iterator(Function * f, Input state) {
+            typedef function_input_iterator<Function*, Input> result_t;
+            return result_t(f, state);
+    }
+
+    struct infinite {
+        infinite & operator++() { return *this; }
+        infinite & operator++(int) { return *this; }
+        bool operator==(infinite &) const { return false; };
+        bool operator==(infinite const &) const { return false; };
+    };
+}
+
+#endif
+

include/boost/iterator/indirect_iterator.hpp

@@ -110,7 +110,7 @@ namespace boost
   private:    
       typename super_t::reference dereference() const
       {
-# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
+# if BOOST_WORKAROUND(__BORLANDC__, < 0x5A0 )
           return const_cast<super_t::reference>(**this->base());
 # else
           return **this->base();

include/boost/iterator/iterator_adaptor.hpp

@@ -24,10 +24,9 @@
 
 #ifdef BOOST_ITERATOR_REF_CONSTNESS_KILLS_WRITABILITY
 # include <boost/type_traits/remove_reference.hpp>
-#else 
-# include <boost/type_traits/add_reference.hpp>
-#endif 
+#endif
 
+#include <boost/type_traits/add_reference.hpp>
 #include <boost/iterator/detail/config_def.hpp>
 
 #include <boost/iterator/iterator_traits.hpp>

include/boost/iterator/iterator_facade.hpp

@@ -1,6 +1,7 @@
 // (C) Copyright David Abrahams 2002.
 // (C) Copyright Jeremy Siek    2002.
 // (C) Copyright Thomas Witt    2002.
+// (C) copyright Jeffrey Lee Hellrung, Jr. 2012.
 // 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)
@@ -13,9 +14,10 @@
 
 #include <boost/iterator/detail/facade_iterator_category.hpp>
 #include <boost/iterator/detail/enable_if.hpp>
+#include <boost/iterator/detail/operator_brackets_dispatch.hpp>
 
-#include <boost/implicit_cast.hpp>
 #include <boost/static_assert.hpp>
+#include <boost/utility/addressof.hpp>
 
 #include <boost/type_traits/is_same.hpp>
 #include <boost/type_traits/add_const.hpp>
@@ -75,7 +77,7 @@ namespace boost
           , Return
           , int[3]
         >::type type;
-    };        
+    };
 #else
       : ::boost::iterators::enable_if<
            mpl::or_<
@@ -85,7 +87,7 @@ namespace boost
          , Return
         >
     {};
-#endif 
+#endif
 
     //
     // Generates associated types for an iterator_facade with the
@@ -94,7 +96,7 @@ namespace boost
     template <
         class ValueParam
       , class CategoryOrTraversal
-      , class Reference 
+      , class Reference
       , class Difference
     >
     struct iterator_facade_types
@@ -102,15 +104,16 @@ namespace boost
         typedef typename facade_iterator_category<
             CategoryOrTraversal, ValueParam, Reference
         >::type iterator_category;
-        
+
         typedef typename remove_const<ValueParam>::type value_type;
-        
+
+        // Not the real associated pointer type
         typedef typename mpl::eval_if<
             boost::detail::iterator_writability_disabled<ValueParam,Reference>
           , add_pointer<const value_type>
           , add_pointer<value_type>
         >::type pointer;
-      
+
 # if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)                          \
     && (BOOST_WORKAROUND(_STLPORT_VERSION, BOOST_TESTED_AT(0x452))              \
         || BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, BOOST_TESTED_AT(310)))     \
@@ -146,7 +149,7 @@ namespace boost
 
         // Returning a mutable reference allows nonsense like
         // (*r++).mutate(), but it imposes fewer assumptions about the
-        // behavior of the value_type.  In particular, recall taht
+        // behavior of the value_type.  In particular, recall that
         // (*r).mutate() is legal if operator* returns by value.
         value_type&
         operator*() const
@@ -156,7 +159,7 @@ namespace boost
      private:
         mutable value_type stored_value;
     };
-    
+
     //
     // In general, we can't determine that such an iterator isn't
     // writable -- we also need to store a copy of the old iterator so
@@ -208,7 +211,7 @@ namespace boost
         {
             return stored_iterator;
         }
-        
+
      private:
         mutable value_type stored_value;
         Iterator stored_iterator;
@@ -220,7 +223,7 @@ namespace boost
     struct is_non_proxy_reference_impl
     {
         static Reference r;
-        
+
         template <class R>
         static typename mpl::if_<
             is_convertible<
@@ -230,17 +233,17 @@ namespace boost
           , char[1]
           , char[2]
         >::type& helper(R const&);
-        
+
         BOOST_STATIC_CONSTANT(bool, value = sizeof(helper(r)) == 1);
     };
-        
+
     template <class Reference, class Value>
     struct is_non_proxy_reference
       : mpl::bool_<
             is_non_proxy_reference_impl<Reference, Value>::value
         >
     {};
-# else 
+# else
     template <class Reference, class Value>
     struct is_non_proxy_reference
       : is_convertible<
@@ -249,8 +252,8 @@ namespace boost
           , Value const volatile*
         >
     {};
-# endif 
-        
+# endif
+
     // A metafunction to choose the result type of postfix ++
     //
     // Because the C++98 input iterator requirements say that *r++ has
@@ -272,7 +275,7 @@ namespace boost
             mpl::and_<
                 // A proxy is only needed for readable iterators
                 is_convertible<Reference,Value const&>
-                
+
                 // No multipass iterator can have values that disappear
                 // before positions can be re-visited
               , mpl::not_<
@@ -293,116 +296,46 @@ namespace boost
 
     // operator->() needs special support for input iterators to strictly meet the
     // standard's requirements. If *i is not a reference type, we must still
-    // produce a lvalue to which a pointer can be formed. We do that by
-    // returning an instantiation of this special proxy class template.
-    template <class T>
-    struct operator_arrow_proxy
+    // produce an lvalue to which a pointer can be formed.  We do that by
+    // returning a proxy object containing an instance of the reference object.
+    template <class Reference>
+    struct operator_arrow_dispatch // proxy references
     {
-        operator_arrow_proxy(T const* px) : m_value(*px) {}
-        T* operator->() const { return &m_value; }
-        // This function is needed for MWCW and BCC, which won't call operator->
-        // again automatically per 13.3.1.2 para 8
-        operator T*() const { return &m_value; }
-        mutable T m_value;
+        struct proxy
+        {
+            explicit proxy(Reference const & x) : m_ref(x) {}
+            Reference* operator->() { return boost::addressof(m_ref); }
+            // This function is needed for MWCW and BCC, which won't call
+            // operator-> again automatically per 13.3.1.2 para 8
+            operator Reference*() { return boost::addressof(m_ref); }
+            Reference m_ref;
+        };
+        typedef proxy result_type;
+        static result_type apply(Reference const & x)
+        {
+            return result_type(x);
+        }
     };
 
-    // A metafunction that gets the result type for operator->.  Also
-    // has a static function make() which builds the result from a
-    // Reference
-    template <class ValueType, class Reference, class Pointer>
-    struct operator_arrow_result
+    template <class T>
+    struct operator_arrow_dispatch<T&> // "real" references
     {
-        // CWPro8.3 won't accept "operator_arrow_result::type", and we
-        // need that type below, so metafunction forwarding would be a
-        // losing proposition here.
-        typedef typename mpl::if_<
-            is_reference<Reference>
-          , Pointer
-          , operator_arrow_proxy<ValueType>
-        >::type type;
-
-        static type make(Reference x)
+        typedef T* result_type;
+        static result_type apply(T& x)
         {
-            return implicit_cast<type>(&x);
+            return boost::addressof(x);
         }
     };
 
 # if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
     // Deal with ETI
     template<>
-    struct operator_arrow_result<int, int, int>
+    struct operator_arrow_dispatch<int>
     {
-        typedef int type;
+        typedef int result_type;
     };
 # endif
 
-    // A proxy return type for operator[], needed to deal with
-    // iterators that may invalidate referents upon destruction.
-    // Consider the temporary iterator in *(a + n)
-    template <class Iterator>
-    class operator_brackets_proxy
-    {
-        // Iterator is actually an iterator_facade, so we do not have to
-        // go through iterator_traits to access the traits.
-        typedef typename Iterator::reference  reference;
-        typedef typename Iterator::value_type value_type;
-
-     public:
-        operator_brackets_proxy(Iterator const& iter)
-          : m_iter(iter)
-        {}
-
-        operator reference() const
-        {
-            return *m_iter;
-        }
-
-        operator_brackets_proxy& operator=(value_type const& val)
-        {
-            *m_iter = val;
-            return *this;
-        }
-
-     private:
-        Iterator m_iter;
-    };
-
-    // A metafunction that determines whether operator[] must return a
-    // proxy, or whether it can simply return a copy of the value_type.
-    template <class ValueType, class Reference>
-    struct use_operator_brackets_proxy
-      : mpl::not_<
-            mpl::and_<
-                // Really we want an is_copy_constructible trait here,
-                // but is_POD will have to suffice in the meantime.
-                boost::is_POD<ValueType>
-              , iterator_writability_disabled<ValueType,Reference>
-            >
-        >
-    {};
-        
-    template <class Iterator, class Value, class Reference>
-    struct operator_brackets_result
-    {
-        typedef typename mpl::if_<
-            use_operator_brackets_proxy<Value,Reference>
-          , operator_brackets_proxy<Iterator>
-          , Value
-        >::type type;
-    };
-
-    template <class Iterator>
-    operator_brackets_proxy<Iterator> make_operator_brackets_result(Iterator const& iter, mpl::true_)
-    {
-        return operator_brackets_proxy<Iterator>(iter);
-    }
-
-    template <class Iterator>
-    typename Iterator::value_type make_operator_brackets_result(Iterator const& iter, mpl::false_)
-    {
-      return *iter;
-    }
-
     struct choose_difference_type
     {
         template <class I1, class I2>
@@ -416,13 +349,13 @@ namespace boost
             , typename I1::difference_type
             , typename I2::difference_type
           >
-# else 
+# else
           mpl::eval_if<
               is_convertible<I2,I1>
             , iterator_difference<I1>
             , iterator_difference<I2>
           >
-# endif 
+# endif
         {};
 
     };
@@ -433,27 +366,27 @@ namespace boost
 # ifdef BOOST_NO_STRICT_ITERATOR_INTEROPERABILITY
 #  define BOOST_ITERATOR_FACADE_INTEROP_HEAD(prefix, op, result_type)       \
     template <                                                              \
-        class Derived1, class V1, class TC1, class R1, class D1             \
-      , class Derived2, class V2, class TC2, class R2, class D2             \
+        class Derived1, class V1, class TC1, class Reference1, class Difference1 \
+      , class Derived2, class V2, class TC2, class Reference2, class Difference2 \
     >                                                                       \
     prefix typename mpl::apply2<result_type,Derived1,Derived2>::type \
     operator op(                                                            \
-        iterator_facade<Derived1, V1, TC1, R1, D1> const& lhs               \
-      , iterator_facade<Derived2, V2, TC2, R2, D2> const& rhs)
-# else 
+        iterator_facade<Derived1, V1, TC1, Reference1, Difference1> const& lhs   \
+      , iterator_facade<Derived2, V2, TC2, Reference2, Difference2> const& rhs)
+# else
 #  define BOOST_ITERATOR_FACADE_INTEROP_HEAD(prefix, op, result_type)   \
     template <                                                          \
-        class Derived1, class V1, class TC1, class R1, class D1         \
-      , class Derived2, class V2, class TC2, class R2, class D2         \
+        class Derived1, class V1, class TC1, class Reference1, class Difference1 \
+      , class Derived2, class V2, class TC2, class Reference2, class Difference2 \
     >                                                                   \
     prefix typename boost::detail::enable_if_interoperable<             \
         Derived1, Derived2                                              \
       , typename mpl::apply2<result_type,Derived1,Derived2>::type       \
     >::type                                                             \
     operator op(                                                        \
-        iterator_facade<Derived1, V1, TC1, R1, D1> const& lhs           \
-      , iterator_facade<Derived2, V2, TC2, R2, D2> const& rhs)
-# endif 
+        iterator_facade<Derived1, V1, TC1, Reference1, Difference1> const& lhs   \
+      , iterator_facade<Derived2, V2, TC2, Reference2, Difference2> const& rhs)
+# endif
 
 #  define BOOST_ITERATOR_FACADE_PLUS_HEAD(prefix,args)              \
     template <class Derived, class V, class TC, class R, class D>   \
@@ -470,13 +403,12 @@ namespace boost
   //
   class iterator_core_access
   {
-# if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)                  \
-    || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x551))
+# if defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
       // Tasteless as this may seem, making all members public allows member templates
       // to work in the absence of member template friends.
    public:
 # else
-      
+
       template <class I, class V, class TC, class R, class D> friend class iterator_facade;
 
 #  define BOOST_ITERATOR_FACADE_RELATION(op)                                \
@@ -618,16 +550,24 @@ namespace boost
          Value, CategoryOrTraversal, Reference, Difference
       > associated_types;
 
+      typedef boost::detail::operator_arrow_dispatch<
+          Reference> operator_arrow_dispatch_;
+
+      typedef typename boost::detail::operator_brackets_dispatch<
+          Derived, Value, Reference>::type operator_brackets_dispatch_;
+
    protected:
       // For use by derived classes
       typedef iterator_facade<Derived,Value,CategoryOrTraversal,Reference,Difference> iterator_facade_;
-      
+
    public:
 
       typedef typename associated_types::value_type value_type;
       typedef Reference reference;
       typedef Difference difference_type;
-      typedef typename associated_types::pointer pointer;
+
+      typedef typename operator_arrow_dispatch_::result_type pointer;
+
       typedef typename associated_types::iterator_category iterator_category;
 
       reference operator*() const
@@ -635,29 +575,15 @@ namespace boost
           return iterator_core_access::dereference(this->derived());
       }
 
-      typename boost::detail::operator_arrow_result<
-          value_type
-        , reference
-        , pointer
-      >::type
-      operator->() const
+      pointer operator->() const
       {
-          return boost::detail::operator_arrow_result<
-              value_type
-            , reference
-            , pointer
-          >::make(*this->derived());
+          return operator_arrow_dispatch_::apply(*this->derived());
       }
-        
-      typename boost::detail::operator_brackets_result<Derived,Value,reference>::type
+
+      typename operator_brackets_dispatch_::result_type
       operator[](difference_type n) const
       {
-          typedef boost::detail::use_operator_brackets_proxy<Value,Reference> use_proxy;
-          
-          return boost::detail::make_operator_brackets_result<Derived>(
-              this->derived() + n
-            , use_proxy()
-          );
+          return operator_brackets_dispatch_::apply(this->derived() + n);
       }
 
       Derived& operator++()
@@ -676,7 +602,7 @@ namespace boost
           return tmp;
       }
 # endif
-      
+
       Derived& operator--()
       {
           iterator_core_access::decrement(this->derived());
@@ -731,14 +657,14 @@ namespace boost
   {
       typename boost::detail::postfix_increment_result<I,V,R,TC>::type
           tmp(*static_cast<I*>(&i));
-      
+
       ++i;
-      
+
       return tmp;
   }
-# endif 
+# endif
+
 
-  
   //
   // Comparison operator implementation. The library supplied operators
   // enables the user to provide fully interoperable constant/mutable

include/boost/iterator/reverse_iterator.hpp

@@ -7,8 +7,8 @@
 #ifndef BOOST_REVERSE_ITERATOR_23022003THW_HPP
 #define BOOST_REVERSE_ITERATOR_23022003THW_HPP
 
+#include <boost/next_prior.hpp>
 #include <boost/iterator.hpp>
-#include <boost/utility.hpp>
 #include <boost/iterator/iterator_adaptor.hpp>
 
 namespace boost

include/boost/iterator/transform_iterator.hpp

@@ -7,7 +7,6 @@
 #ifndef BOOST_TRANSFORM_ITERATOR_23022003THW_HPP
 #define BOOST_TRANSFORM_ITERATOR_23022003THW_HPP
 
-#include <boost/function.hpp>
 #include <boost/iterator.hpp>
 #include <boost/iterator/detail/enable_if.hpp>
 #include <boost/iterator/iterator_adaptor.hpp>
@@ -21,6 +20,8 @@
 #include <boost/type_traits/is_reference.hpp>
 #include <boost/type_traits/remove_const.hpp>
 #include <boost/type_traits/remove_reference.hpp>
+#include <boost/utility/result_of.hpp>
+
 
 #if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1310))
 # include <boost/type_traits/is_base_and_derived.hpp>
@@ -36,33 +37,16 @@ namespace boost
 
   namespace detail 
   {
-
-    template <class UnaryFunc>
-    struct function_object_result
-    {
-      typedef typename UnaryFunc::result_type type;
-    };
-
-#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-    template <class Return, class Argument>
-    struct function_object_result<Return(*)(Argument)>
-    {
-      typedef Return type;
-    };
-#endif
-
     // Compute the iterator_adaptor instantiation to be used for transform_iterator
     template <class UnaryFunc, class Iterator, class Reference, class Value>
     struct transform_iterator_base
     {
      private:
         // By default, dereferencing the iterator yields the same as
-        // the function.  Do we need to adjust the way
-        // function_object_result is computed for the standard
-        // proposal (e.g. using Doug's result_of)?
+        // the function.
         typedef typename ia_dflt_help<
             Reference
-          , function_object_result<UnaryFunc>
+          , result_of<const UnaryFunc(typename std::iterator_traits<Iterator>::reference)>
         >::type reference;
 
         // To get the default for Value: remove any reference on the
@@ -114,7 +98,7 @@ namespace boost
 #endif 
     }
 
-    template<
+    template <
         class OtherUnaryFunction
       , class OtherIterator
       , class OtherReference

include/boost/iterator/zip_iterator.hpp

@@ -357,7 +357,7 @@ namespace boost {
     {
       typedef typename tuple_impl_specific::tuple_meta_transform<
           IteratorTuple
-        , iterator_traversal<>
+        , pure_traversal_tag<iterator_traversal<> >
       >::type tuple_of_traversal_tags;
           
       typedef typename tuple_impl_specific::tuple_meta_accumulate<

include/boost/iterator_adaptors.hpp

@@ -1,6 +1,9 @@
 // Copyright David Abrahams 2004. 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 www.boost.org/libs/iterator for documentation.
+
 #ifndef ITERATOR_ADAPTORS_DWA2004725_HPP
 # define ITERATOR_ADAPTORS_DWA2004725_HPP
 

include/boost/pending/integer_range.hpp

@@ -1,59 +0,0 @@
-// (C) Copyright David Abrahams and Jeremy Siek 2000-2001.
-// 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)
-//
-// Revision History:
-// 04 Jan 2001  Factored counting_iterator stuff into
-//              boost/counting_iterator.hpp (David Abrahams)
-
-#ifndef BOOST_INTEGER_RANGE_HPP_
-#define BOOST_INTEGER_RANGE_HPP_
-
-#include <boost/config.hpp>
-#include <boost/iterator/counting_iterator.hpp>
-#include <algorithm>
-
-namespace boost {
-
-//=============================================================================
-// Counting Iterator and Integer Range Class
-
-template <class IntegerType>
-struct integer_range {
-    typedef counting_iterator<IntegerType> iterator;
-
-    typedef iterator const_iterator;
-    typedef IntegerType value_type;
-    typedef std::ptrdiff_t difference_type;
-    typedef IntegerType reference;
-    typedef IntegerType const_reference;
-    typedef const IntegerType* pointer;
-    typedef const IntegerType* const_pointer;
-    typedef IntegerType size_type;
-
-    integer_range(IntegerType start, IntegerType finish)
-        : m_start(start), m_finish(finish) { }
-
-    iterator begin() const { return iterator(m_start); }
-    iterator end() const { return iterator(m_finish); }
-    size_type size() const { return m_finish - m_start; }
-    bool empty() const { return m_finish == m_start; }
-    void swap(integer_range& x) {
-        std::swap(m_start, x.m_start);
-        std::swap(m_finish, x.m_finish);
-    }
-protected:
-    IntegerType m_start, m_finish;
-};
-
-template <class IntegerType>
-inline integer_range<IntegerType>
-make_integer_range(IntegerType first, IntegerType last)
-{
-  return integer_range<IntegerType>(first, last);
-}
-
-} // namespace boost
-
-#endif // BOOST_INTEGER_RANGE_HPP_

test/Jamfile.v2

@@ -43,5 +43,6 @@ test-suite iterator
     [ run iterator_traits_test.cpp ]
     [ run permutation_iterator_test.cpp : : : # <stlport-iostream>on 
     ]
+    [ run function_input_iterator_test.cpp ]
       
 ;