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Global time_formats< CharT >::duration_sign_always - Boost C++ 函数库

Global time_formats< CharT >::duration_sign_always

boost::date_time::time_formats< CharT >::duration_sign_always

提要

// In header: <boost/date_time/time_facet.hpp>

const time_formats< CharT >::char_type time_formats< CharT >::duration_sign_always;