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This is an older version of Boost and was released in 2024. The current version is 1.89.0.
Inherited from basic_socket.
Determine the number of bytes available for reading.
std::size_t available( boost::system::error_code & ec) const;
This function is used to determine the number of bytes that may be read without blocking.
Set to indicate what error occurred, if any.
The number of bytes that may be read without blocking, or 0 if an error occurs.