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#### socket_base::send_low_watermark

Socket option for the send low watermark.

    typedef implementation_defined send_low_watermark;

Implements the SOL_SOCKET/SO_SNDLOWAT socket option.

###### Examples

Setting the option:

    boost::asio::ip::tcp::socket socket(io_service);
    ...
    boost::asio::socket_base::send_low_watermark option(1024);
    socket.set_option(option);

Getting the current option value:

    boost::asio::ip::tcp::socket socket(io_service);
    ...
    boost::asio::socket_base::send_low_watermark option;
    socket.get_option(option);
    int size = option.value();

###### Requirements

Header: `boost/asio/socket_base.hpp`

Convenience header: `boost/asio.hpp`