61         return *this->begin();  in first()
65         return *this->rbegin();  in last()
70         auto high = this->lower_bound(x);  in findY()
72         if (high == this->end()) {  in findY()
73             return this->rbegin()->second;  in findY()
76         if (high == this->begin()) {  in findY()
107             auto low2 = this->end();  in findY()
108             if (low != this->begin()) {  in findY()
134                 sec0 = low2 != this->end()  in findY()
137                 sec1 = high2 != this->end()  in findY()
146                 m0 = low2 != this->end()  in findY()
150                 m1 = high2 != this->end()  in findY()
245                 ?: parcel->writeUint32((uint32_t)this->size()); // silent truncation  in writeToParcel()
249         for (const auto &pt : *this) {  in writeToParcel()
260         this->clear();  in readFromParcel()
289             this->emplace(x, y);  in readFromParcel()
302         for (const auto &pt : *this) {  in toString()