id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
10154,Compilation error in gregorian_calendar.ipp: is_leap_year,anonymous,"James E. King, III","Using visual studio 2013, I get the following compilation error:

1>C:\Libs\CLibs\boost_1.55.0\include\boost/date_time/gregorian_calendar.ipp(167): error C2675: unary '!' : 'boost::type' does not define this operator or a conversion to a type acceptable to the predefined operator
1>          C:\Libs\CLibs\boost_1.55.0\include\boost/date_time/gregorian_calendar.ipp(165) : while compiling class template member function 'bool boost::date_time::gregorian_calendar_base<boost::gregorian::greg_year_month_day,unsigned int>::is_leap_year(boost::gregorian::greg_year)'
1>          C:\Libs\CLibs\boost_1.55.0\include\boost/date_time/gregorian_calendar.ipp(51) : see reference to function template instantiation 'bool boost::date_time::gregorian_calendar_base<boost::gregorian::greg_year_month_day,unsigned int>::is_leap_year(boost::gregorian::greg_year)' being compiled
1>          C:\Libs\CLibs\boost_1.55.0\include\boost/date_time/gregorian_calendar.ipp(22) : while compiling class template member function 'unsigned short boost::date_time::gregorian_calendar_base<boost::gregorian::greg_year_month_day,unsigned int>::day_of_week(const boost::date_time::year_month_day_base<boost::gregorian::greg_year,boost::gregorian::greg_month,boost::gregorian::greg_day> &)'
1>          C:\Libs\CLibs\boost_1.55.0\include\boost/date_time/date.hpp(95) : see reference to function template instantiation 'unsigned short boost::date_time::gregorian_calendar_base<boost::gregorian::greg_year_month_day,unsigned int>::day_of_week(const boost::date_time::year_month_day_base<boost::gregorian::greg_year,boost::gregorian::greg_month,boost::gregorian::greg_day> &)' being compiled
1>          C:\Libs\CLibs\boost_1.55.0\include\boost/date_time/gregorian/greg_calendar.hpp(27) : see reference to class template instantiation 'boost::date_time::gregorian_calendar_base<boost::gregorian::greg_year_month_day,unsigned int>' being compiled

---

Include tree:

""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/thread.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/thread/thread.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/thread/thread_only.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/thread/win32/thread_data.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/thread/thread_time.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/date_time/posix_time/posix_tim
e_types.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/date_time/posix_time/ptime.hpp
""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/date_time/posix_time/posix_tim
e_system.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/date_time/posix_time/posix_ti
me_config.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/date_time/gregorian/gregorian
_types.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/date_time/gregorian/greg_cale
ndar.hpp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/date_time/gregorian_calendar.h
pp""
""C:\\Libs\\CLibs\\boost_1.55.0\\include\\boost/date_time/gregorian_calendar.i
pp""

---

Changing the line 167 to:

    return (!((unsigned short)year % 4))  && (((unsigned short)year % 100) || (!((unsigned short)year % 400)));

... fixes the problem.




",Bugs,closed,To Be Determined,date_time,Boost 1.55.0,Problem,invalid,,