rem: GraphOpSeq seq;  seq.setGraphOps(argv[1]);
add: GraphOpSeq seq(argv[1]);
context: int main(int argc, char *argv[]){    osgInit(argc, argv);    NodePtr    root = Node::create();    GroupPtr   group = Group::create();    beginEditCP(root);    beginEditCP(group);    root->setCore(group);    if(argc < 4)    {        std::cout << argv[0] << " opseq infile1 [infile2 ...] outfile" << std::endl;        return 1;    }        GraphOpSeq seq;        seq.setGraphOps(argv[1]);        for(int a = 2; a < (argc - 1); ++a)    {        std::cout << "read:" << argv[a] << std::endl;        NodePtr node = SceneFileHandler::the().read(argv[a]);        if(node == NullFC)        {            std::cerr <<                "ERROR: Cannot read file " <<                argv[a] <<                "" <<                std::endl;            continue;        }        root->addChild(node);    }    if (argc == 4)        root = root->getChild(0);    seq.run(root);        SceneFileHandler::the().write(root,argv[argc-1]);    endEditCP(root);    endEditCP(group);       return 0;}