This commit was manufactured by cvs2svn to create branch 'RC_1_30_0'.

[SVN r17693]

include/boost/cstdlib.hpp

@@ -5,7 +5,7 @@
 //  appears in all copies. This software is provided "as is" without express or
 //  implied warranty, and with no claim as to its suitability for any purpose.
 
-//  See http://www.boost.org for updates and documentation.
+//  See http://www.boost.org/libs/utility/cstdlib.html for documentation.
 
 //  Revision History
 //   26 Feb 01  Initial version (Beman Dawes)

include/boost/detail/allocator.hpp

@@ -49,7 +49,10 @@ void allocator_construct(T* p, const T& t)
 
 template <class T>
 void allocator_destroy(T* p)
-{ p->~T(); }
+{ 
+   (void)p; // warning suppression
+   p->~T(); 
+}
 
 } }
 
@@ -57,7 +60,7 @@ void allocator_destroy(T* p)
 
 #include <memory>
 
-#define BOOST_DEFAULT_ALLOCATOR(T) std::allocator<T>
+#define BOOST_DEFAULT_ALLOCATOR(T) std::allocator< T >
 
 namespace boost{ namespace detail{
 
@@ -76,7 +79,7 @@ struct rebind_allocator
 // no std::allocator, but the compiler supports the necessary syntax,
 // write our own allocator instead:
 
-#define BOOST_DEFAULT_ALLOCATOR(T) ::boost::detail::allocator<T>
+#define BOOST_DEFAULT_ALLOCATOR(T) ::boost::detail::allocator< T >
 
 namespace boost{ namespace detail{
 

include/boost/detail/iterator.hpp

@@ -1,4 +1,4 @@
-// (C) Copyright David Abrahams 2001. Permission to copy, use, modify,
+// (C) Copyright David Abrahams 2002. Permission to copy, use, modify,
 // sell and distribute this software is granted provided this
 // copyright notice appears in all copies. This software is provided
 // "as is" without express or implied warranty, and with no claim as
@@ -20,11 +20,6 @@
 //    std::iterator_traits<X>::pointer
 //    std::iterator_traits<X>::reference
 //
-// CAVEAT: When using the VC6 standard library, an iterator derived from
-// std::iterator but not boost::iterator or from one supplied by the standard
-// will always have pointer == const value_type* and reference == const
-// value_type&, whether that's correct or not.
-
 // See http://www.boost.org for most recent version including documentation.
 
 // Revision History
@@ -57,17 +52,17 @@
 # define ITERATOR_DWA122600_HPP_
 
 # include <boost/config.hpp>
-# include <boost/type_traits.hpp>
-# include <boost/iterator.hpp>
+# include <boost/type_traits/remove_const.hpp>
+# include <boost/type_traits/detail/yes_no_type.hpp>
+# include <boost/type_traits/is_pointer.hpp>
+# include <boost/type_traits/is_base_and_derived.hpp>
+# include <boost/mpl/if.hpp>
+# include <boost/mpl/aux_/has_xxx.hpp>
 # include <iterator>
 # include <cstddef>
 
-# if defined(BOOST_MSVC_STD_ITERATOR) && !defined(__SGI_STL_PORT)
-#  include <xtree>
-#  include <deque>
-#  include <list>
-# endif
-
+// should be the last #include
+#include "boost/type_traits/detail/bool_trait_def.hpp"
 
 // STLPort 4.0 and betas have a bug when debugging is enabled and there is no
 // partial specialization: instead of an iterator_category typedef, the standard
@@ -76,9 +71,9 @@
 // Also, whether debugging is enabled or not, there is a broken specialization
 // of std::iterator<output_iterator_tag,void,void,void,void> which has no
 // typedefs but iterator_category.
-# if defined(__SGI_STL_PORT) && (__SGI_STL_PORT <= 0x410) && !defined(__STL_CLASS_PARTIAL_SPECIALIZATION)
+# if defined(__SGI_STL_PORT)
 
-#  ifdef __STL_DEBUG
+#  if (__SGI_STL_PORT <= 0x410) && !defined(__STL_CLASS_PARTIAL_SPECIALIZATION) && defined(__STL_DEBUG)
 #   define BOOST_BAD_CONTAINER_ITERATOR_CATEGORY_TYPEDEF
 #  endif
 
@@ -87,293 +82,345 @@
 # endif // STLPort <= 4.1b4 && no partial specialization
 
 namespace boost { namespace detail {
-# if !defined(BOOST_NO_STD_ITERATOR_TRAITS) && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_MSVC_STD_ITERATOR)
-using std::iterator_traits;
+
+BOOST_MPL_HAS_XXX_TRAIT_DEF(value_type)
+BOOST_MPL_HAS_XXX_TRAIT_DEF(reference)
+BOOST_MPL_HAS_XXX_TRAIT_DEF(pointer)
+BOOST_MPL_HAS_XXX_TRAIT_DEF(difference_type)
+BOOST_MPL_HAS_XXX_TRAIT_DEF(iterator_category)
+
+# if !defined(BOOST_NO_STD_ITERATOR_TRAITS)             \
+  && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
+  && !defined(BOOST_MSVC_STD_ITERATOR)
+// Define a new template so it can be specialized
+template <class Iterator>
+struct iterator_traits
+    : std::iterator_traits<Iterator>
+{};
 using std::distance;
+# elif  !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
+     && !defined(BOOST_MSVC_STD_ITERATOR)
+
+// Rogue Wave Standard Library fools itself into thinking partial
+// specialization is missing on some platforms (e.g. Sun), so fails to
+// supply iterator_traits!
+template <class Iterator>
+struct iterator_traits
+{
+    typedef typename Iterator::value_type value_type;
+    typedef typename Iterator::reference reference;
+    typedef typename Iterator::pointer pointer;
+    typedef typename Iterator::difference_type difference_type;
+    typedef typename Iterator::iterator_category iterator_category;
+};
+
+template <class T>
+struct iterator_traits<T*>
+{
+    typedef T value_type;
+    typedef T& reference;
+    typedef T* pointer;
+    typedef std::ptrdiff_t difference_type;
+    typedef std::random_access_iterator_tag iterator_category;
+};
+
+template <class T>
+struct iterator_traits<T const*>
+{
+    typedef T value_type;
+    typedef T const& reference;
+    typedef T const* pointer;
+    typedef std::ptrdiff_t difference_type;
+    typedef std::random_access_iterator_tag iterator_category;
+};
+
 # else
 
-namespace iterator_traits_ {
+// is_mutable_iterator --
+//
+//   A metafunction returning true iff T is a mutable iterator type
+//   with a nested value_type. Will only work portably with iterators
+//   whose operator* returns a reference, but that seems to be OK for
+//   the iterators supplied by Dinkumware. Some input iterators may
+//   compile-time if they arrive here, and if the compiler is strict
+//   about not taking the address of an rvalue.
 
-// Workarounds for less-capable implementations
-template <bool is_ptr> struct iterator_traits_select;
+// This one detects ordinary mutable iterators - the result of
+// operator* is convertible to the value_type.
+template <class T>
+type_traits::yes_type is_mutable_iterator_helper(T const*, BOOST_DEDUCED_TYPENAME T::value_type*);
 
-template <class T> struct undefined;
-template <> struct iterator_traits_select<true>
+// This one detects output iterators such as ostream_iterator which
+// return references to themselves.
+template <class T>
+type_traits::yes_type is_mutable_iterator_helper(T const*, T const*);
+
+type_traits::no_type is_mutable_iterator_helper(...);
+
+template <class T>
+struct is_mutable_iterator_impl
 {
-    template <class Ptr>
-    struct traits
-    {
-        typedef std::ptrdiff_t difference_type;
-        typedef std::random_access_iterator_tag iterator_category;
-        typedef Ptr pointer;
-#if defined(BOOST_MSVC) && BOOST_MSVC <= 1300
-// Keeps MSVC happy under certain circumstances. It seems class template default
-// arguments are partly instantiated even when not used when the class template
-// is the return type of a function template.
-        typedef undefined<void> value_type;
-        typedef undefined<void> reference;
-#endif
+    static T t;
+    
+    BOOST_STATIC_CONSTANT(bool, value = sizeof(
+               detail::is_mutable_iterator_helper((T*)0, &*t))
+           == sizeof(type_traits::yes_type)
+        );
+};
+
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(
+    is_mutable_iterator,T,::boost::detail::is_mutable_iterator_impl<T>::value)
+
+
+// is_full_iterator_traits --
+//
+//   A metafunction returning true iff T has all the requisite nested
+//   types to satisfy the requirements for a fully-conforming
+//   iterator_traits implementation.
+template <class T>
+struct is_full_iterator_traits_impl
+{
+    enum { value = 
+           has_value_type<T>::value 
+           & has_reference<T>::value 
+           & has_pointer<T>::value 
+           & has_difference_type<T>::value
+           & has_iterator_category<T>::value
     };
 };
 
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(
+    is_full_iterator_traits,T,::boost::detail::is_full_iterator_traits_impl<T>::value)
 
-typedef char yes_type;
-typedef double no_type;
 
-# ifdef BOOST_BAD_CONTAINER_ITERATOR_CATEGORY_TYPEDEF
-
-no_type bad_category_helper(...);
-template <class C, class T> yes_type bad_category_helper(std::_DBG_iter<C,T>*);
-
-template <bool has_bad_category_typedef> struct bad_category_select;
-template <>
-struct bad_category_select<true>
+#  ifdef BOOST_BAD_CONTAINER_ITERATOR_CATEGORY_TYPEDEF
+BOOST_MPL_HAS_XXX_TRAIT_DEF(_Iterator_category)
+    
+// is_stlport_40_debug_iterator --
+//
+//   A metafunction returning true iff T has all the requisite nested
+//   types to satisfy the requirements of an STLPort 4.0 debug iterator
+//   iterator_traits implementation.
+template <class T>
+struct is_stlport_40_debug_iterator_impl
 {
-    template <class Iterator>
-    struct category { typedef typename Iterator::_Iterator_category type; };
-};
-template <>
-struct bad_category_select<false>
-{
-    template <class Iterator>
-    struct category { typedef typename Iterator::iterator_category type; };
-};
-
-template <class Iterator>
-struct iterator_category_select
-{
- private:
-    static Iterator p;
-    enum { has_bad_category
-           = sizeof(bad_category_helper(&p)) == sizeof(yes_type) };
-    typedef bad_category_select<has_bad_category> category_select;
- public:
-    typedef typename category_select::template category<Iterator>::type type;
-};
-
-# endif
-
-# ifdef BOOST_BAD_OUTPUT_ITERATOR_SPECIALIZATION
-template <bool is_bad_output_iterator> struct bad_output_iterator_select;
-template <>
-struct bad_output_iterator_select<true>
-{
-    template <class Iterator>
-    struct non_category_traits {
-        typedef void value_type;
-        typedef void difference_type;
-        typedef void pointer;
-        typedef void reference;
+    enum { value = 
+           has_value_type<T>::value 
+           & has_reference<T>::value 
+           & has_pointer<T>::value 
+           & has_difference_type<T>::value
+           & has__Iterator_category<T>::value
     };
 };
-template <>
-struct bad_output_iterator_select<false>
-{
-    template <class Iterator>
-    struct non_category_traits {
-        typedef typename Iterator::value_type value_type;
-        typedef typename Iterator::difference_type difference_type;
-        typedef typename Iterator::pointer pointer;
-        typedef typename Iterator::reference reference;
-    };
-};
-# endif
 
-# if defined(BOOST_MSVC_STD_ITERATOR) && !defined(__SGI_STL_PORT)
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(
+    is_stlport_40_debug_iterator,T,::boost::detail::is_stlport_40_debug_iterator_impl<T>::value)
+
+template <class T>
+struct stlport_40_debug_iterator_traits
+{
+    typedef typename T::value_type value_type;
+    typedef typename T::reference reference;
+    typedef typename T::pointer pointer;
+    typedef typename T::difference_type difference_type;
+    typedef typename T::_Iterator_category iterator_category;
+};
+# endif // BOOST_BAD_CONTAINER_ITERATOR_CATEGORY_TYPEDEF 
+
+template <class T> struct pointer_iterator_traits;
+
+# ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+template <class T>
+struct pointer_iterator_traits<T*>
+{
+    typedef remove_const<T>::type value_type;
+    typedef T* pointer;
+    typedef T& reference;
+    typedef std::random_access_iterator_tag iterator_category;
+    typedef std::ptrdiff_t difference_type;
+};
+# else 
+template <class Ptr>
+struct must_manually_specialize_boost_detail_iterator_traits;
+
+template <class T>
+struct pointer_iterator_traits
+{
+    typedef T pointer;
+    typedef std::random_access_iterator_tag iterator_category;
+    typedef std::ptrdiff_t difference_type;
+
+    // Makes MSVC6 happy under some circumstances
+    typedef must_manually_specialize_boost_detail_iterator_traits<T> value_type;
+    typedef must_manually_specialize_boost_detail_iterator_traits<T> reference;
+};
+
+// Use this as a base class in manual iterator_traits specializations
+// for pointer types. T should be the value_type. CV should be the
+// cv-qualified value_type to which */& is added in order to produce
+// pointer/reference.
+template <class T, class CV = T>
+struct ptr_iter_traits
+{
+    typedef T value_type;
+    typedef CV* pointer;
+    typedef CV& reference;
+    typedef std::random_access_iterator_tag iterator_category;
+    typedef std::ptrdiff_t difference_type;
+};
+# endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 
 // We'll sort iterator types into one of these classifications, from which we
 // can determine the difference_type, pointer, reference, and value_type
-enum {
-    not_msvc_stdlib_iterator,
-    msvc_stdlib_const_iterator,
-    msvc_stdlib_mutable_iterator,
-    msvc_stdlib_ostream_iterator
-};
-       
-template <unsigned> struct msvc_traits_select;
-
-template <> struct msvc_traits_select<not_msvc_stdlib_iterator>
+template <class Iterator>
+struct standard_iterator_traits
 {
-    template <class Iterator>
-    struct traits_     // calling this "traits" will confuse VC.
-    {
-        typedef typename Iterator::difference_type difference_type;
-        typedef typename Iterator::value_type value_type;
-        typedef typename Iterator::pointer pointer;
-        typedef typename Iterator::reference reference;
-    };
+    typedef typename Iterator::difference_type difference_type;
+    typedef typename Iterator::value_type value_type;
+    typedef typename Iterator::pointer pointer;
+    typedef typename Iterator::reference reference;
+    typedef typename Iterator::iterator_category iterator_category;
 };
 
-template <> struct msvc_traits_select<msvc_stdlib_mutable_iterator>
+template <class Iterator>
+struct msvc_stdlib_mutable_traits
+    : std::iterator_traits<Iterator>
 {
-    template <class Iterator>
-    struct traits_
-    {
-        typedef typename Iterator::distance_type difference_type;
-        typedef typename Iterator::value_type value_type;
-        typedef value_type* pointer;
-        typedef value_type& reference;
-    };
+    typedef typename std::iterator_traits<Iterator>::distance_type difference_type;
+    typedef value_type* pointer;
+    typedef value_type& reference;
 };
 
-template <> struct msvc_traits_select<msvc_stdlib_const_iterator>
+template <class Iterator>
+struct msvc_stdlib_const_traits
+    : std::iterator_traits<Iterator>
 {
-    template <class Iterator>
-    struct traits_
-    {
-        typedef typename Iterator::distance_type difference_type;
-        typedef typename Iterator::value_type value_type;
-        typedef const value_type* pointer;
-        typedef const value_type& reference;
-    };
+    typedef typename std::iterator_traits<Iterator>::distance_type difference_type;
+    typedef const value_type* pointer;
+    typedef const value_type& reference;
 };
 
-template <> struct msvc_traits_select<msvc_stdlib_ostream_iterator>
+# ifdef BOOST_BAD_OUTPUT_ITERATOR_SPECIALIZATION
+template <class Iterator>
+struct is_bad_output_iterator
+    : is_base_and_derived<
+        std::iterator<std::output_iterator_tag,void,void,void,void>
+        , Iterator>
 {
-    template <class Iterator>
-    struct traits_
-    {
-        typedef typename Iterator::distance_type difference_type;
-        typedef typename Iterator::value_type value_type;
-        typedef void pointer;
-        typedef void reference;
-    };
 };
 
-// These functions allow us to detect which classification a given iterator type
-// falls into.
-
-// Is the iterator derived from std::iterator?
-no_type is_std_iterator_helper(...);
-template <class V, class D, class C>
-yes_type is_std_iterator_helper(const volatile std::iterator<V,D,C>*);
-
-// Is the iterator derived from boost::iterator?
-template <class C, class T, class D, class P, class R>
-yes_type is_boost_iterator_helper(const volatile boost::iterator<C,T,D,P,R>*);
-no_type is_boost_iterator_helper(...);
-
-// Is the iterator one of the known mutable container iterators?
-template<class K, class Ty, class Kfn, class Pr, class A>
-yes_type is_mutable_iterator_helper(const volatile typename std::_Tree<K,Ty,Kfn,Pr,A>::iterator*);
-template<class Ty, class A>
-yes_type is_mutable_iterator_helper(const volatile typename std::list<Ty,A>::iterator*);
-template<class Ty, class A>
-yes_type is_mutable_iterator_helper(const volatile typename std::deque<Ty,A>::iterator*);
-no_type is_mutable_iterator_helper(...);
-
-// Is the iterator an ostream_iterator?
-template<class T, class CharT, class Traits>
-yes_type is_ostream_iterator_helper(const volatile std::ostream_iterator<T,CharT,Traits>*);
-no_type is_ostream_iterator_helper(...);
-
-template <class T>
-struct msvc_iterator_classification {
-    BOOST_STATIC_CONSTANT(unsigned,
-        value = (sizeof(is_ostream_iterator_helper((T*)0)) == sizeof(yes_type))
-          ? msvc_stdlib_ostream_iterator
-        : (sizeof(is_mutable_iterator_helper((T*)0)) == sizeof(yes_type))
-          ? msvc_stdlib_mutable_iterator
-        : (sizeof(is_std_iterator_helper((T*)0)) == sizeof(yes_type)
-           && sizeof(is_boost_iterator_helper((T*)0)) == sizeof(no_type))
-        ? msvc_stdlib_const_iterator
-        : not_msvc_stdlib_iterator
-        );
+struct bad_output_iterator_traits
+{
+    typedef void value_type;
+    typedef void difference_type;
+    typedef std::output_iterator_tag iterator_category;
+    typedef void pointer;
+    typedef void reference;
 };
 # endif
 
-template <> struct iterator_traits_select<false>
+// If we're looking at an MSVC6 (old Dinkumware) ``standard''
+// iterator, this will generate an appropriate traits class. 
+template <class Iterator>
+struct msvc_stdlib_iterator_traits
+    : mpl::if_<
+       is_mutable_iterator<Iterator>
+       , msvc_stdlib_mutable_traits<Iterator>
+       , msvc_stdlib_const_traits<Iterator>
+      >::type
+{};
+
+template <class Iterator>
+struct non_pointer_iterator_traits
+    : mpl::if_<
+        // if the iterator contains all the right nested types...
+        is_full_iterator_traits<Iterator>
+        // Use a standard iterator_traits implementation
+        , standard_iterator_traits<Iterator>
+# ifdef BOOST_BAD_CONTAINER_ITERATOR_CATEGORY_TYPEDEF
+        // Check for STLPort 4.0 broken _Iterator_category type
+        , mpl::if_<
+             is_stlport_40_debug_iterator<Iterator>
+             , stlport_40_debug_iterator_traits<Iterator>
+# endif
+        // Otherwise, assume it's a Dinkum iterator
+        , msvc_stdlib_iterator_traits<Iterator>
+# ifdef BOOST_BAD_CONTAINER_ITERATOR_CATEGORY_TYPEDEF
+        >::type
+# endif 
+    >::type
 {
-    template <class Iterator>
-    struct traits
-    {
-#   if defined(BOOST_MSVC_STD_ITERATOR) && !defined(__SGI_STL_PORT)
-        typedef msvc_traits_select<(
-            msvc_iterator_classification<Iterator>::value
-        )>::template traits_<Iterator> inner_traits;
-        
-        typedef typename inner_traits::difference_type difference_type;
-        typedef typename inner_traits::value_type value_type;
-        typedef typename inner_traits::pointer pointer;
-        typedef typename inner_traits::reference reference;
-#   elif !defined(BOOST_BAD_OUTPUT_ITERATOR_SPECIALIZATION)
-        typedef typename Iterator::difference_type difference_type;
-        typedef typename Iterator::value_type value_type;
-        typedef typename Iterator::pointer pointer;
-        typedef typename Iterator::reference reference;
-#   else
-        typedef bad_output_iterator_select<
-          is_convertible<const volatile Iterator*,
-            const volatile std::iterator<std::output_iterator_tag,void,void,void,void>*
-          >::value> non_category_traits_select;
-        typedef non_category_traits_select::template non_category_traits<Iterator> non_category_traits;
-     public:
-        typedef typename non_category_traits::value_type value_type;
-        typedef typename non_category_traits::difference_type difference_type;
-        typedef typename non_category_traits::pointer pointer;
-        typedef typename non_category_traits::reference reference;
-#   endif
-        
-#   if !defined(BOOST_BAD_CONTAINER_ITERATOR_CATEGORY_TYPEDEF)
-        typedef typename Iterator::iterator_category iterator_category;
-#   else
-        typedef typename iterator_category_select<Iterator>::type iterator_category;
-#   endif
-    };
 };
 
-} // namespace boost::detail::iterator_traits_
+template <class Iterator>
+struct iterator_traits_aux
+    : mpl::if_<
+        is_pointer<Iterator>
+        , pointer_iterator_traits<Iterator>
+        , non_pointer_iterator_traits<Iterator>
+    >::type
+{
+};
 
 template <class Iterator>
 struct iterator_traits
-    : iterator_traits_::iterator_traits_select<is_pointer<Iterator>::value>::template traits<Iterator>
 {
+    // Explicit forwarding from base class needed to keep MSVC6 happy
+    // under some circumstances.
  private:
-    typedef typename iterator_traits_::iterator_traits_select<
-        is_pointer<remove_cv<Iterator>::type>::value>::template traits<Iterator> traits;
+# ifdef BOOST_BAD_OUTPUT_ITERATOR_SPECIALIZATION
+    typedef 
+    typename mpl::if_<
+        is_bad_output_iterator<Iterator>
+        , bad_output_iterator_traits
+        , iterator_traits_aux<Iterator>
+    >::type base;
+# else
+    typedef iterator_traits_aux<Iterator> base;
+# endif
  public:
-    // Why do I need to define these typedefs? It keeps MSVC happy somehow.
-    // Why don't I need to define the other typedefs? Who knows?!?
-    typedef typename traits::difference_type difference_type;
-    typedef typename traits::iterator_category iterator_category;
+    typedef typename base::value_type value_type;
+    typedef typename base::pointer pointer;
+    typedef typename base::reference reference;
+    typedef typename base::difference_type difference_type;
+    typedef typename base::iterator_category iterator_category;
 };
 
-namespace iterator_traits_ {
+// This specialization cuts off ETI (Early Template Instantiation) for MSVC.
+template <> struct iterator_traits<int>{};
 
-template <class Category>
-struct distance_select {
-    template <class Iterator>
-    static typename ::boost::detail::iterator_traits<Iterator>::difference_type
-    distance(Iterator i1, const Iterator i2)
-    {
-        typename ::boost::detail::iterator_traits<Iterator>::difference_type result = 0;
-        while (i1 != i2)
-        {
-            ++i1;
-            ++result;
-        }
-        return result;
-    }
-};
-
-template <>
-struct distance_select<std::random_access_iterator_tag> {
-    template <class Iterator>
-    static typename ::boost::detail::iterator_traits<Iterator>::difference_type
-    distance(const Iterator i1, const Iterator i2)
-    {
-        return i2 - i1;
-    }
-};
+namespace iterator_traits_
+{
+  template <class Iterator, class Difference>
+  struct distance_select
+  {
+      static Difference execute(Iterator i1, const Iterator i2, ...)
+      {
+          typename Difference result = 0;
+          while (i1 != i2)
+          {
+              ++i1;
+              ++result;
+          }
+          return result;
+      }
 
+      static Difference execute(Iterator i1, const Iterator i2, std::random_access_iterator_tag*)
+      {
+          return i2 - i1;
+      }
+  };
 } // namespace boost::detail::iterator_traits_
 
 template <class Iterator>
-inline typename ::boost::detail::iterator_traits<Iterator>::difference_type
-distance(const Iterator& first, const Iterator& last)
+inline typename iterator_traits<Iterator>::difference_type
+distance(Iterator first, Iterator last)
 {
+    typedef typename iterator_traits<Iterator>::difference_type diff_t;
     typedef typename ::boost::detail::iterator_traits<Iterator>::iterator_category iterator_category;
-    return iterator_traits_::distance_select<iterator_category>::distance(first, last);
+    
+    return iterator_traits_::distance_select<Iterator,diff_t>::execute(
+        first, last, (iterator_category*)0);
 }
 # endif // workarounds
 

include/boost/detail/lightweight_test.hpp

@@ -0,0 +1,74 @@
+#ifndef BOOST_DETAIL_LIGHTWEIGHT_TEST_HPP_INCLUDED
+#define BOOST_DETAIL_LIGHTWEIGHT_TEST_HPP_INCLUDED
+
+#if _MSC_VER >= 1020
+#pragma once
+#endif
+
+//
+//  boost/detail/lightweight_test.hpp - lightweight test library
+//
+//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//
+//  Permission to copy, use, modify, sell and distribute this software
+//  is granted provided this copyright notice appears in all copies.
+//  This software is provided "as is" without express or implied
+//  warranty, and with no claim as to its suitability for any purpose.
+//
+//  BOOST_TEST(expression)
+//  BOOST_ERROR(message)
+//
+//  int boost::report_errors()
+//
+
+#include <boost/current_function.hpp>
+#include <iostream>
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline int & test_errors()
+{
+    static int x = 0;
+    return x;
+}
+
+inline void test_failed_impl(char const * expr, char const * file, int line, char const * function)
+{
+    std::cerr << file << "(" << line << "): test '" << expr << "' failed in function '" << function << "'" << std::endl;
+    ++test_errors();
+}
+
+inline void error_impl(char const * msg, char const * file, int line, char const * function)
+{
+    std::cerr << file << "(" << line << "): " << msg << " in function '" << function << "'" << std::endl;
+    ++test_errors();
+}
+
+} // namespace detail
+
+inline int report_errors()
+{
+    int errors = detail::test_errors();
+
+    if(errors == 0)
+    {
+        std::cerr << "No errors detected." << std::endl;
+        return 0;
+    }
+    else
+    {
+        std::cerr << errors << " error" << (errors == 1? "": "s") << " detected." << std::endl;
+        return 1;
+    }
+}
+
+} // namespace boost
+
+#define BOOST_TEST(expr) ((expr)? (void)0: ::boost::detail::test_failed_impl(#expr, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION))
+#define BOOST_ERROR(msg) ::boost::detail::error_impl(msg, __FILE__, __LINE__, BOOST_CURRENT_FUNCTION)
+
+#endif // #ifndef BOOST_DETAIL_LIGHTWEIGHT_TEST_HPP_INCLUDED

include/boost/detail/quick_allocator.hpp

@@ -0,0 +1,187 @@
+#ifndef BOOST_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED
+#define BOOST_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED
+
+#if _MSC_VER >= 1020
+#pragma once
+#endif
+
+//
+//  detail/quick_allocator.hpp
+//
+//  Copyright (c) 2003 David Abrahams
+//  Copyright (c) 2003 Peter Dimov
+//
+//  Permission to copy, use, modify, sell and distribute this software
+//  is granted provided this copyright notice appears in all copies.
+//  This software is provided "as is" without express or implied
+//  warranty, and with no claim as to its suitability for any purpose.
+//
+
+#include <boost/config.hpp>
+
+#include <boost/detail/lightweight_mutex.hpp>
+#include <boost/type_traits/type_with_alignment.hpp>
+#include <boost/type_traits/alignment_of.hpp>
+
+#include <new>              // ::operator new, ::operator delete
+#include <cstddef>          // std::size_t
+
+namespace boost
+{
+
+namespace detail
+{
+
+template<unsigned size, unsigned align_> union freeblock
+{
+    typedef typename boost::type_with_alignment<align_>::type aligner_type;
+    aligner_type aligner;
+    char bytes[size];
+    freeblock * next;
+};
+
+template<unsigned size, unsigned align_> struct allocator_impl
+{
+    typedef freeblock<size, align_> block;
+
+    // It may seem odd to use such small pages.
+    //
+    // However, on a typical Windows implementation that uses
+    // the OS allocator, "normal size" pages interact with the
+    // "ordinary" operator new, slowing it down dramatically.
+    //
+    // 512 byte pages are handled by the small object allocator,
+    // and don't interfere with ::new.
+    //
+    // The other alternative is to use much bigger pages (1M.)
+    //
+    // It is surprisingly easy to hit pathological behavior by
+    // varying the page size. g++ 2.96 on Red Hat Linux 7.2,
+    // for example, passionately dislikes 496. 512 seems OK.
+
+#if defined(BOOST_QA_PAGE_SIZE)
+
+    enum { items_per_page = BOOST_QA_PAGE_SIZE / size };
+
+#else
+
+    enum { items_per_page = 512 / size }; // 1048560 / size
+
+#endif
+
+#ifdef BOOST_HAS_THREADS
+    static lightweight_mutex mutex;
+#endif
+
+    static block * free;
+    static block * page;
+    static unsigned last;
+
+    static inline void * alloc()
+    {
+#ifdef BOOST_HAS_THREADS
+        lightweight_mutex::scoped_lock lock(mutex);
+#endif
+        if(block * x = free)
+        {
+            free = x->next;
+            return x;
+        }
+        else
+        {
+            if(last == items_per_page)
+            {
+                // "Listen to me carefully: there is no memory leak"
+                // -- Scott Meyers, Eff C++ 2nd Ed Item 10
+                page = ::new block[items_per_page];
+                last = 0;
+            }
+
+            return &page[last++];
+        }
+    }
+
+    static inline void * alloc(std::size_t n)
+    {
+        if(n != size) // class-specific new called for a derived object
+        {
+            return ::operator new(n);
+        }
+        else
+        {
+#ifdef BOOST_HAS_THREADS
+            lightweight_mutex::scoped_lock lock(mutex);
+#endif
+            if(block * x = free)
+            {
+                free = x->next;
+                return x;
+            }
+            else
+            {
+                if(last == items_per_page)
+                {
+                    page = ::new block[items_per_page];
+                    last = 0;
+                }
+
+                return &page[last++];
+            }
+        }
+    }
+
+    static inline void dealloc(void * pv)
+    {
+        if(pv != 0) // 18.4.1.1/13
+        {
+#ifdef BOOST_HAS_THREADS
+            lightweight_mutex::scoped_lock lock(mutex);
+#endif
+            block * pb = static_cast<block *>(pv);
+            pb->next = free;
+            free = pb;
+        }
+    }
+
+    static inline void dealloc(void * pv, std::size_t n)
+    {
+        if(n != size) // class-specific delete called for a derived object
+        {
+            ::operator delete(pv);
+        }
+        else if(pv != 0) // 18.4.1.1/13
+        {
+#ifdef BOOST_HAS_THREADS
+            lightweight_mutex::scoped_lock lock(mutex);
+#endif
+            block * pb = static_cast<block *>(pv);
+            pb->next = free;
+            free = pb;
+        }
+    }
+};
+
+#ifdef BOOST_HAS_THREADS
+template<unsigned size, unsigned align_>
+  lightweight_mutex allocator_impl<size, align_>::mutex;
+#endif
+
+template<unsigned size, unsigned align_>
+  freeblock<size, align_> * allocator_impl<size, align_>::free = 0;
+
+template<unsigned size, unsigned align_>
+  freeblock<size, align_> * allocator_impl<size, align_>::page = 0;
+
+template<unsigned size, unsigned align_>
+  unsigned allocator_impl<size, align_>::last = allocator_impl<size, align_>::items_per_page;
+
+template<class T>
+struct quick_allocator: public allocator_impl< sizeof(T), boost::alignment_of<T>::value >
+{
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif  // #ifndef BOOST_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED

include/boost/pending/ct_if.hpp

@@ -36,12 +36,23 @@ namespace boost {
 
 #ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 
-  template <int cond, class A, class B>
+// agurt, 15/sep/02: in certain cases Borland has problems with
+// choosing the right 'ct_if' specialization even though 'cond' 
+// _does_ equal '1'; the easiest way to fix it is to make first 
+// 'ct_if' non-type template parameter boolean.
+#if !defined(__BORLANDC__)
+  template <bool cond, class A, class B>
   struct ct_if { typedef ct_if_error type; };
   template <class A, class B>
-  struct ct_if<1, A, B> { typedef A type; };
+  struct ct_if<true, A, B> { typedef A type; };
   template <class A, class B>
-  struct ct_if<0, A, B> { typedef B type; };
+  struct ct_if<false, A, B> { typedef B type; };
+#else
+  template <bool cond, class A, class B>
+  struct ct_if { typedef A type; };
+  template <class A, class B>
+  struct ct_if<false, A, B> { typedef B type; };
+#endif
 
   template <class cond, class A, class B>
   struct ct_if_t { typedef ct_if_error type; };

include/boost/visit_each.hpp

@@ -11,7 +11,7 @@
 // This software is provided "as is" without express or implied warranty,
 // and with no claim as to its suitability for any purpose.
  
-// For more information, see http://www.boost.org
+// For more information, see http://www.boost.org/libs/signals
 
 #ifndef BOOST_VISIT_EACH_HPP
 #define BOOST_VISIT_EACH_HPP