148   std::set<uint32_t> AllFeatures = InitialFeatures;  in Merge()  local
153     AllFeatures.insert(Cur.begin(), Cur.end());  in Merge()
159     std::set_difference(Cur.begin(), Cur.end(), AllFeatures.begin(),  in Merge()
160                         AllFeatures.end(), std::inserter(Tmp, Tmp.begin()));  in Merge()
182       if (AllFeatures.insert(Fe).second) {  in Merge()
196 std::set<uint32_t> Merger::AllFeatures() const {  in AllFeatures()  function in fuzzer::Merger
221   std::set<size_t> AllFeatures;  in CrashResistantMergeInternalStep()  local
222   auto PrintStatsWrapper = [this, &AllFeatures](const char* Where) {  in CrashResistantMergeInternalStep()
223     this->PrintStats(Where, "\n", 0, AllFeatures.size());  in CrashResistantMergeInternalStep()
248         if (AllFeatures.insert(Feature).second)  in CrashResistantMergeInternalStep()
289   std::set<uint32_t> AllFeatures;  in SetCoverMerge()  local
308     AllFeatures.insert(F % kFeatureSetSize);  in SetCoverMerge()
319       AllFeatures.insert(F % kFeatureSetSize);  in SetCoverMerge()
323   while (NumCovered != AllFeatures.size()) {  in SetCoverMerge()
365       assert(NumCovered == AllFeatures.size());  in SetCoverMerge()