Files
boost_range/include/boost/range/sub_range.hpp
Thorsten Jørgen Ottosen 531339a51d *** empty log message ***
[SVN r24455]
2004-08-13 07:24:13 +00:00

78 lines
2.5 KiB
C++
Executable File

// Boost.Range library
//
// Copyright Thorsten Ottosen 2003-2004. Use, modification and
// distribution is subject to 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)
//
// For more information, see http://www.boost.org/libs/range/
//
#ifndef BOOST_RANGE_SUB_RANGE_HPP
#define BOOST_RANGE_SUB_RANGE_HPP
#include <boost/range/config.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/range/value_type.hpp>
#include <boost/range/result_iterator.hpp>
#include <boost/range/size_type.hpp>
#include <boost/range/difference_type.hpp>
namespace boost
{
template< class ForwardRange >
class sub_range : public iterator_range< BOOST_DEDUCED_TYPENAME result_iterator_of<ForwardRange>::type >
{
typedef BOOST_DEDUCED_TYPENAME result_iterator_of<ForwardRange>::type iterator_t;
typedef iterator_range< iterator_t > base;
public:
typedef BOOST_DEDUCED_TYPENAME value_type_of<ForwardRange>::type value_type;
typedef BOOST_DEDUCED_TYPENAME result_iterator_of<ForwardRange>::type iterator;
typedef BOOST_DEDUCED_TYPENAME const_iterator_of<ForwardRange>::type const_iterator;
typedef BOOST_DEDUCED_TYPENAME difference_type_of<ForwardRange>::type difference_type;
typedef BOOST_DEDUCED_TYPENAME size_type_of<ForwardRange>::type size_type;
public:
template< class ForwardRange2 >
sub_range( ForwardRange2& r ) : base( r )
{ }
template< class ForwardRange2 >
sub_range( const ForwardRange2& r ) : base( r )
{ }
template< class Iter >
sub_range( Iter first, Iter last ) :
base( first, last )
{ }
template< class ForwardRange2 >
sub_range& operator=( ForwardRange2& r )
{
base::operator=( r );
return *this;
}
template< class ForwardRange2 >
sub_range& operator=( const ForwardRange2& r )
{
base::operator=( r );
return *this;
}
public:
iterator begin() { return base::begin(); }
const_iterator begin() const { return base::begin(); }
iterator end() { return base::end(); }
const_iterator end() const { return base::end(); }
size_type size() const { return std::distance( begin(), end() ); }
};
} // namespace 'boost'
#endif