//==========================================================================
buffer( buffer const& src ) : parent_data(src.allocator())
{
parent_data::allocate(src.size());
#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && BOOST_WORKAROUND(BOOST_MSVC, < 1600)
stdext::unchecked_copy(src.begin(),src.end(),begin());
#elif BOOST_WORKAROUND(BOOST_MSVC, > 1500)
std::copy(src.begin(),src.end(),stdext::make_unchecked_array_iterator(begin()));
#else
std::copy(src.begin(),src.end(),begin());
#endif
}
//==========================================================================
void swap( buffer&src )
{
parent_data::swap( src );
boost::swap(allocator(),src.allocator());
}