2012/6/28 Krzysztof Czainski <1czajnik@gmail.com>
2012/6/27 Vicente J. Botet Escriba <vicente.botet@wanadoo.fr>
Le 27/06/12 14:31, Krzysztof Czainski a écrit :
Hello,
Suppose I want to use durations, and time_points with a user defined clock. I don't want to use any clocks provided by Boost.Chrono.
My compiler provides a<time.h>, which doesn't define CLOCK_REALTIME, which chrono/config.hpp reports as an error. This prevents me from using parts of Chrono, that I believe don't depend on anything from<time.h>.
chrono/config.hpp contains
# if defined( BOOST_CHRONO_POSIX_API ) # define BOOST_CHRONO_HAS_PROCESS_**CLOCKS # include <time.h> //to check for CLOCK_REALTIME and CLOCK_MONOTONIC and _POSIX_THREAD_CPUTIME # if defined(CLOCK_REALTIME) # if defined(CLOCK_MONOTONIC) # define BOOST_CHRONO_HAS_CLOCK_STEADY # endif # else # error <time.h> does not supply CLOCK_REALTIME # endif ... # endif
if CLOCK_REALTIME is not defined this means that we are unable to provide system_clock which is mandatory. This is why there is an error. Maybe this could only be included only when including system_clocks.hpp. Please could you make a feature request on the Trac system?
I don't need system_clock, while I would like to use time_point and duration. I will create a ticket then.
Ticket no. 7042. Kris.