#### buffered_stream::write_some

Write the given data to the stream. Returns the number of bytes written. Throws an exception on failure.

    template<
        typename ConstBufferSequence>
    std::size_t write_some(
        const ConstBufferSequence & buffers);
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Write the given data to the stream. Returns the number of bytes written, or 0 if an error occurred.

    template<
        typename ConstBufferSequence>
    std::size_t write_some(
        const ConstBufferSequence & buffers,
        asio::error_code & ec);
      » more...