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The boost::asio::buffer_copy function is used to copy bytes
        from a source buffer (or buffer sequence) to a target buffer (or buffer sequence).
      
std::size_t buffer_copy( const mutable_buffer & target, const const_buffer & source); » more... std::size_t buffer_copy( const mutable_buffer & target, const const_buffers_1 & source); » more... std::size_t buffer_copy( const mutable_buffer & target, const mutable_buffer & source); » more... std::size_t buffer_copy( const mutable_buffer & target, const mutable_buffers_1 & source); » more... template< typename ConstBufferSequence> std::size_t buffer_copy( const mutable_buffer & target, const ConstBufferSequence & source); » more... std::size_t buffer_copy( const mutable_buffers_1 & target, const const_buffer & source); » more... std::size_t buffer_copy( const mutable_buffers_1 & target, const const_buffers_1 & source); » more... std::size_t buffer_copy( const mutable_buffers_1 & target, const mutable_buffer & source); » more... std::size_t buffer_copy( const mutable_buffers_1 & target, const mutable_buffers_1 & source); » more... template< typename ConstBufferSequence> std::size_t buffer_copy( const mutable_buffers_1 & target, const ConstBufferSequence & source); » more... template< typename MutableBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const const_buffer & source); » more... template< typename MutableBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const const_buffers_1 & source); » more... template< typename MutableBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const mutable_buffer & source); » more... template< typename MutableBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const mutable_buffers_1 & source); » more... template< typename MutableBufferSequence, typename ConstBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const ConstBufferSequence & source); » more... std::size_t buffer_copy( const mutable_buffer & target, const const_buffer & source, std::size_t max_bytes_to_copy); » more... std::size_t buffer_copy( const mutable_buffer & target, const const_buffers_1 & source, std::size_t max_bytes_to_copy); » more... std::size_t buffer_copy( const mutable_buffer & target, const mutable_buffer & source, std::size_t max_bytes_to_copy); » more... std::size_t buffer_copy( const mutable_buffer & target, const mutable_buffers_1 & source, std::size_t max_bytes_to_copy); » more... template< typename ConstBufferSequence> std::size_t buffer_copy( const mutable_buffer & target, const ConstBufferSequence & source, std::size_t max_bytes_to_copy); » more... std::size_t buffer_copy( const mutable_buffers_1 & target, const const_buffer & source, std::size_t max_bytes_to_copy); » more... std::size_t buffer_copy( const mutable_buffers_1 & target, const const_buffers_1 & source, std::size_t max_bytes_to_copy); » more... std::size_t buffer_copy( const mutable_buffers_1 & target, const mutable_buffer & source, std::size_t max_bytes_to_copy); » more... std::size_t buffer_copy( const mutable_buffers_1 & target, const mutable_buffers_1 & source, std::size_t max_bytes_to_copy); » more... template< typename ConstBufferSequence> std::size_t buffer_copy( const mutable_buffers_1 & target, const ConstBufferSequence & source, std::size_t max_bytes_to_copy); » more... template< typename MutableBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const const_buffer & source, std::size_t max_bytes_to_copy); » more... template< typename MutableBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const const_buffers_1 & source, std::size_t max_bytes_to_copy); » more... template< typename MutableBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const mutable_buffer & source, std::size_t max_bytes_to_copy); » more... template< typename MutableBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const mutable_buffers_1 & source, std::size_t max_bytes_to_copy); » more... template< typename MutableBufferSequence, typename ConstBufferSequence> std::size_t buffer_copy( const MutableBufferSequence & target, const ConstBufferSequence & source, std::size_t max_bytes_to_copy); » more...
        The buffer_copy function
        is available in two forms:
      
buffer_copy(target, source)
          buffer_copy(target, source, max_bytes_to_copy)
          Both forms return the number of bytes actually copied. The number of bytes copied is the lesser of:
buffer_size(target)
          buffer_size(source)
          If specified, max_bytes_to_copy.
          This prevents buffer overflow, regardless of the buffer sizes used in the copy operation.
        Note that buffer_copy is implemented in terms
        of memcpy, and consequently
        it cannot be used to copy between overlapping memory regions.
      
        Header: boost/asio/buffer.hpp
      
        Convenience header: boost/asio.hpp