// 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 |