105     string *longest_common_prefix);
223   string longest_common_prefix;  in PrintFlagCompletionInfo()  local
229       &longest_common_prefix);  in PrintFlagCompletionInfo()
231   DVLOG(1) << "Identified " << longest_common_prefix  in PrintFlagCompletionInfo()
233   if (longest_common_prefix.size() > canonical_token.size()) {  in PrintFlagCompletionInfo()
236     DVLOG(1) << "The common prefix '" << longest_common_prefix  in PrintFlagCompletionInfo()
239     fprintf(stdout, "--%s", longest_common_prefix.c_str());  in PrintFlagCompletionInfo()
355     string *longest_common_prefix) {  in FindMatchingFlags()  argument
365         *longest_common_prefix = it->name;  in FindMatchingFlags()
367         if (longest_common_prefix->empty() || it->name.empty()) {  in FindMatchingFlags()
368           longest_common_prefix->clear();  in FindMatchingFlags()
372         while (pos < longest_common_prefix->size() &&  in FindMatchingFlags()
374             (*longest_common_prefix)[pos] == it->name[pos])  in FindMatchingFlags()
376         longest_common_prefix->erase(pos);  in FindMatchingFlags()