 href="classboost_1_1locale_1_1abstract__calendar.html#a7bd4c26f5a4260f6d9c91c615efc4b46">difference</a> (<a class="el" href="classboost_1_1locale_1_1abstract__calendar.html">abstract_calendar</a> const *other, <a class="el" href="namespaceboost_1_1locale_1_1period_1_1marks.html#a1536eaff4b2a880782128fc127f40d3a">period::marks::period_mark</a> p) const =0</td></tr>
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