row_equal_p      4493 src/dispnew.c    while (entry && !row_equal_p (entry->row, row, 1))
row_equal_p      4569 src/dispnew.c  	  && row_equal_p (c, d, 1))
row_equal_p      4646 src/dispnew.c           && row_equal_p (MATRIX_ROW (desired_matrix, i - 1),