57     : G(&G), F(F), DFSNumber(0), LowLink(0) {  in Node()
160   N.DFSNumber = N.LowLink = -1;  in insert()
382   N->LowLink = N->DFSNumber = 1;  in internalDFS()
419         ChildN.LowLink = ChildN.DFSNumber = NextDFSNumber++;  in internalDFS()
428       assert(ChildN.LowLink != 0 &&  in internalDFS()
430       if (ChildN.LowLink >= 0 && ChildN.LowLink < N->LowLink)  in internalDFS()
431         N->LowLink = ChildN.LowLink;  in internalDFS()
435     if (N->LowLink == N->DFSNumber) {  in internalDFS()
475     N->LowLink = 0;  in removeIntraSCCEdge()
587     assert(NodeStack.back()->LowLink >= RootN->LowLink &&  in formSCC()
630     N->LowLink = N->DFSNumber = 1;  in getNextSCCInPostOrder()
650         ChildN.LowLink = ChildN.DFSNumber = NextDFSNumber++;  in getNextSCCInPostOrder()
658       assert(ChildN.LowLink != 0 &&  in getNextSCCInPostOrder()
660       if (ChildN.LowLink >= 0 && ChildN.LowLink < N->LowLink)  in getNextSCCInPostOrder()
661         N->LowLink = ChildN.LowLink;  in getNextSCCInPostOrder()
665     if (N->LowLink == N->DFSNumber)  in getNextSCCInPostOrder()