void AAssociate ::set_application_context(ApplicationContext const & value) { auto const & old_items = this->_item.as_items("Variable-items"); std::vector<Item> new_items; new_items.push_back(value.get_item()); std::copy_if( old_items.begin(), old_items.end(), std::back_inserter(new_items), [](Item const & item) { return item.as_unsigned_int_8("Item-type") == 0x21; }); std::copy_if( old_items.begin(), old_items.end(), std::back_inserter(new_items), [](Item const & item) { return item.as_unsigned_int_8("Item-type") == 0x50; }); this->_item.as_items("Variable-items") = new_items; this->_item.as_unsigned_int_32("PDU-length") = this->_compute_length(); }