FTS2_ROTOR_MASK  3297 third_party/sqlite/src/ext/fts2/fts2.c     iRotorBegin[iRotor&FTS2_ROTOR_MASK] = iBegin;
FTS2_ROTOR_MASK  3298 third_party/sqlite/src/ext/fts2/fts2.c     iRotorLen[iRotor&FTS2_ROTOR_MASK] = iEnd-iBegin;
FTS2_ROTOR_MASK  3312 third_party/sqlite/src/ext/fts2/fts2.c           int k = (iRotor-j) & FTS2_ROTOR_MASK;