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Inheriting std::iterator is deprecated in c++17.

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Boost's iterator.hpp is deprecated, too. Therefore get rid of all of that and replace inheritance by lifting std::iterator's members into the derived class.

Signed-off-by: Daniela Engert <dani@ngrt.de>
This commit is contained in:
Daniela Engert
2017-12-27 09:20:39 +01:00
parent 218dc4baf1
commit e16f2de233
4 changed files with 67 additions and 43 deletions
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31
test/is_lvalue_iterator.cpp
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@ -5,10 +5,10 @@
#include <deque>
#include <iterator>
#include <iostream>
#include <cstddef> // std::ptrdiff_t
#include <boost/static_assert.hpp>
#include <boost/noncopyable.hpp>
#include <boost/iterator/is_lvalue_iterator.hpp>
#include <boost/iterator.hpp>
// Last, for BOOST_NO_LVALUE_RETURN_DETECTION
#include <boost/iterator/detail/config_def.hpp>
@ -20,29 +20,36 @@ struct v
};
struct value_iterator : boost::iterator<std::input_iterator_tag,v>
struct value_iterator
{
typedef std::input_iterator_tag iterator_category;
typedef v value_type;
typedef std::ptrdiff_t difference_type;
typedef v* pointer;
typedef v& reference;
v operator*() const;
};
struct noncopyable_iterator : boost::iterator<std::forward_iterator_tag,boost::noncopyable>
struct noncopyable_iterator
{
typedef std::forward_iterator_tag iterator_category;
typedef boost::noncopyable value_type;
typedef std::ptrdiff_t difference_type;
typedef boost::noncopyable* pointer;
typedef boost::noncopyable& reference;
boost::noncopyable const& operator*() const;
};
template <class T>
struct proxy_iterator
: boost::iterator<std::output_iterator_tag,T>
{
typedef T value_type;
#if BOOST_WORKAROUND(__GNUC__, == 2)
typedef boost::iterator<std::input_iterator_tag,value_type> base;
typedef base::iterator_category iterator_category;
typedef base::difference_type difference_type;
typedef base::pointer pointer;
typedef base::reference reference;
#endif
typedef std::output_iterator_tag iterator_category;
typedef std::ptrdiff_t difference_type;
typedef T* pointer;
typedef T& reference;
struct proxy
{