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This is an older version of Boost and was released in 2015. The current version is 1.89.0.
Get the expiry time for the timer as an absolute time.
time_type expires_at( const implementation_type & impl) const; » more...
Set the expiry time for the timer as an absolute time.
std::size_t expires_at( implementation_type & impl, const time_type & expiry_time, boost::system::error_code & ec); » more...