diff options
Diffstat (limited to 'contrib/src/boost/iterator/reverse_iterator.hpp')
-rw-r--r-- | contrib/src/boost/iterator/reverse_iterator.hpp | 148 |
1 files changed, 74 insertions, 74 deletions
diff --git a/contrib/src/boost/iterator/reverse_iterator.hpp b/contrib/src/boost/iterator/reverse_iterator.hpp index f9aab8f..3bef39e 100644 --- a/contrib/src/boost/iterator/reverse_iterator.hpp +++ b/contrib/src/boost/iterator/reverse_iterator.hpp @@ -1,74 +1,74 @@ -// (C) Copyright David Abrahams 2002.
-// (C) Copyright Jeremy Siek 2002.
-// (C) Copyright Thomas Witt 2002.
-// 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_REVERSE_ITERATOR_23022003THW_HPP
-#define BOOST_REVERSE_ITERATOR_23022003THW_HPP
-
-#include <boost/next_prior.hpp>
-#include <boost/iterator.hpp>
-#include <boost/iterator/iterator_adaptor.hpp>
-
-namespace boost {
-namespace iterators {
-
- //
- //
- //
- template <class Iterator>
- class reverse_iterator
- : public iterator_adaptor< reverse_iterator<Iterator>, Iterator >
- {
- typedef iterator_adaptor< reverse_iterator<Iterator>, Iterator > super_t;
-
- friend class iterator_core_access;
-
- public:
- reverse_iterator() {}
-
- explicit reverse_iterator(Iterator x)
- : super_t(x) {}
-
- template<class OtherIterator>
- reverse_iterator(
- reverse_iterator<OtherIterator> const& r
- , typename enable_if_convertible<OtherIterator, Iterator>::type* = 0
- )
- : super_t(r.base())
- {}
-
- private:
- typename super_t::reference dereference() const { return *boost::prior(this->base()); }
-
- void increment() { --this->base_reference(); }
- void decrement() { ++this->base_reference(); }
-
- void advance(typename super_t::difference_type n)
- {
- this->base_reference() += -n;
- }
-
- template <class OtherIterator>
- typename super_t::difference_type
- distance_to(reverse_iterator<OtherIterator> const& y) const
- {
- return this->base_reference() - y.base();
- }
- };
-
- template <class BidirectionalIterator>
- inline reverse_iterator<BidirectionalIterator> make_reverse_iterator(BidirectionalIterator x)
- {
- return reverse_iterator<BidirectionalIterator>(x);
- }
-
-} // namespace iterators
-
-using iterators::reverse_iterator;
-using iterators::make_reverse_iterator;
-
-} // namespace boost
-
-#endif // BOOST_REVERSE_ITERATOR_23022003THW_HPP
+// (C) Copyright David Abrahams 2002. +// (C) Copyright Jeremy Siek 2002. +// (C) Copyright Thomas Witt 2002. +// 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_REVERSE_ITERATOR_23022003THW_HPP +#define BOOST_REVERSE_ITERATOR_23022003THW_HPP + +#include <boost/next_prior.hpp> +#include <boost/iterator.hpp> +#include <boost/iterator/iterator_adaptor.hpp> + +namespace boost { +namespace iterators { + + // + // + // + template <class Iterator> + class reverse_iterator + : public iterator_adaptor< reverse_iterator<Iterator>, Iterator > + { + typedef iterator_adaptor< reverse_iterator<Iterator>, Iterator > super_t; + + friend class iterator_core_access; + + public: + reverse_iterator() {} + + explicit reverse_iterator(Iterator x) + : super_t(x) {} + + template<class OtherIterator> + reverse_iterator( + reverse_iterator<OtherIterator> const& r + , typename enable_if_convertible<OtherIterator, Iterator>::type* = 0 + ) + : super_t(r.base()) + {} + + private: + typename super_t::reference dereference() const { return *boost::prior(this->base()); } + + void increment() { --this->base_reference(); } + void decrement() { ++this->base_reference(); } + + void advance(typename super_t::difference_type n) + { + this->base_reference() += -n; + } + + template <class OtherIterator> + typename super_t::difference_type + distance_to(reverse_iterator<OtherIterator> const& y) const + { + return this->base_reference() - y.base(); + } + }; + + template <class BidirectionalIterator> + inline reverse_iterator<BidirectionalIterator> make_reverse_iterator(BidirectionalIterator x) + { + return reverse_iterator<BidirectionalIterator>(x); + } + +} // namespace iterators + +using iterators::reverse_iterator; +using iterators::make_reverse_iterator; + +} // namespace boost + +#endif // BOOST_REVERSE_ITERATOR_23022003THW_HPP |