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Undo regressions

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[SVN r21721]
This commit is contained in:
Dave Abrahams 2004-01-14 04:38:14 +00:00
parent dd50d3f2ab
commit 9c42ccb0bd
2 changed files with 29 additions and 14 deletions
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41
example/node_iterator2.hpp
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@ -5,7 +5,7 @@
# define NODE_ITERATOR2_DWA2004110_HPP
# include "node.hpp"
# include <boost/iterator/iterator_adaptor.hpp>
# include <boost/iterator/iterator_facade.hpp>
# ifndef BOOST_NO_SFINAE
# include <boost/type_traits/is_convertible.hpp>
@ -14,26 +14,21 @@
template <class Value>
class node_iter
: public boost::iterator_adaptor<
node_iter<Value> // Derived
, Value* // Base
, boost::use_default // Value
, boost::forward_traversal_tag // CategoryOrTraversal
: public boost::iterator_facade<
node_iter<Value>
, Value
, boost::forward_traversal_tag
>
{
private:
struct enabler {}; // a private type avoids misuse
typedef boost::iterator_adaptor<
node_iter<Value>, Value*, boost::use_default, boost::forward_traversal_tag
> super_t;
public:
node_iter()
: super_t(0) {}
: m_node(0) {}
explicit node_iter(Value* p)
: super_t(p) {}
: m_node(p) {}
template <class OtherValue>
node_iter(
@ -47,9 +42,29 @@ class node_iter
)
: m_node(other.m_node) {}
private:
# if !BOOST_WORKAROUND(__GNUC__, == 2)
private: // GCC2 can't even grant that friendship to template member functions
# endif
friend class boost::iterator_core_access;
template <class OtherValue>
bool equal(node_iter<OtherValue> const& other) const
{
return this->m_node == other.m_node;
}
private:
void increment() { m_node = m_node->next(); }
Value& dereference() const { return *m_node; }
# ifdef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
public:
# else
template <class> friend class node_iter;
# endif
Value* m_node;
};
typedef node_iter<node_base> node_iterator;

2
example/node_iterator3.hpp
View File

@ -45,7 +45,7 @@ class node_iter
>::type = enabler()
# endif
)
: m_node(other.m_node) {}
: super_t(other.base()) {}
private:
friend class boost::iterator_core_access;