// Boost.Range library
|
//
|
// Copyright Neil Groves 2009. 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_ALGORITHM_EXT_OVERWRITE_HPP_INCLUDED
|
#define BOOST_RANGE_ALGORITHM_EXT_OVERWRITE_HPP_INCLUDED
|
|
#include <boost/range/config.hpp>
|
#include <boost/range/concepts.hpp>
|
#include <boost/range/difference_type.hpp>
|
#include <boost/range/iterator.hpp>
|
#include <boost/range/begin.hpp>
|
#include <boost/range/end.hpp>
|
#include <boost/assert.hpp>
|
|
namespace boost
|
{
|
namespace range
|
{
|
|
template< class SinglePassRange1, class SinglePassRange2 >
|
inline void overwrite( const SinglePassRange1& from, SinglePassRange2& to )
|
{
|
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
|
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> ));
|
|
BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange1>::type
|
i = boost::begin(from), e = boost::end(from);
|
|
BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type
|
out = boost::begin(to);
|
|
#ifndef NDEBUG
|
BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type
|
last_out = boost::end(to);
|
#endif
|
|
for( ; i != e; ++out, ++i )
|
{
|
#ifndef NDEBUG
|
BOOST_ASSERT( out != last_out
|
&& "out of bounds in boost::overwrite()" );
|
#endif
|
*out = *i;
|
}
|
}
|
|
template< class SinglePassRange1, class SinglePassRange2 >
|
inline void overwrite( const SinglePassRange1& from, const SinglePassRange2& to )
|
{
|
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> ));
|
BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> ));
|
|
BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange1>::type
|
i = boost::begin(from), e = boost::end(from);
|
|
BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange2>::type
|
out = boost::begin(to);
|
|
#ifndef NDEBUG
|
BOOST_DEDUCED_TYPENAME range_iterator<const SinglePassRange2>::type
|
last_out = boost::end(to);
|
#endif
|
|
for( ; i != e; ++out, ++i )
|
{
|
#ifndef NDEBUG
|
BOOST_ASSERT( out != last_out
|
&& "out of bounds in boost::overwrite()" );
|
#endif
|
*out = *i;
|
}
|
}
|
|
} // namespace range
|
using range::overwrite;
|
} // namespace boost
|
|
#endif // include guard
|
