|  | Home | Libraries | People | FAQ | More | 
          Boost.Asio provides timers based on the std::chrono facilities
          via the basic_waitable_timer
          class template. The typedefs system_timer,
          steady_timer and
          high_resolution_timer
          utilise the standard clocks system_clock, steady_clock
          and high_resolution_clock respectively.
        
          Support for the std::chrono facilities is automatically enabled
          for g++ 4.6 and later, when the -std=c++0x
          or -std=gnu++0x compiler options are used. (Note that,
          for g++, the draft-standard monotonic_clock
          is used in place of steady_clock.) Support may be disabled
          by defining BOOST_ASIO_DISABLE_STD_CHRONO, or explicitly enabled
          for other compilers by defining BOOST_ASIO_HAS_STD_CHRONO.
        
          When standard chrono is unavailable, Boost.Asio will otherwise
          use the Boost.Chrono library. The basic_waitable_timer
          class template may be used with either.