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Coding Standards
This is an older version of Boost and was released in 2024. The current version is 1.89.0.
Start an asynchronous write. The data being written must be valid for the lifetime of the asynchronous operation.
template< typename ConstBufferSequence, typename WriteHandler = default_completion_token_t<executor_type>> DEDUCED async_write_some( const ConstBufferSequence & buffers, WriteHandler && handler = default_completion_token_t< executor_type >());
void(boost::system::error_code, std::size_t)