Misuse of memcmp-style function

The return value may be misinterpreted if the function returns an unexpected value. A memcmp-style function is used assuming that it returns -1, 0, or 1.
/src/mongo/db/transaction_participant.cpp:187: BAD_COMPARE 122257 The return value of "find" is not of the type boolean. Note that "find" returns the position of the start of the substring that matches the search criteria or std::string::npos if the search was unsuccessful.