| | |
| | | ts_bool vtx_remove_neighbour(ts_vertex *vtx, ts_vertex *nvtx){ |
| | | /* find a neighbour */ |
| | | /* remove it from the list while shifting remaining neighbours up */ |
| | | ts_int i,j=-1; |
| | | ts_uint i,j=0; |
| | | for(i=0;i<vtx->neigh_no;i++){ |
| | | // fprintf(stderr,"neigh_addr=%ld\n", (long)vtx->neigh[i]); |
| | | if(vtx->neigh[i]!=nvtx){ |
| | | vtx->neigh[j]=vtx->neigh[i]; |
| | | j++; |
| | | } |
| | | } |
| | | if(j==0) { |
| | | fatal("vtx_remove_neighbour: Error, vertices are not neighbours", 100); |
| | | } |
| | | // fprintf(stderr,"remove_neighbour: vtx1_addr=%ld, vtx2_addr=%ld\n",(long)vtx,(long)nvtx); |
| | | /* resize memory. potentionally time consuming */ |
| | | vtx->neigh_no--; |
| | | vtx->neigh=(ts_vertex **)realloc(vtx->neigh,vtx->neigh_no*sizeof(ts_vertex *)); |
| | | if(vtx->neigh == NULL && vtx->neigh_no!=0) |
| | | fatal("Reallocation of memory failed during removal of vertex neighbour in vtx_remove_neighbour",100); |
| | | fprintf(stderr,"first alloc"); |
| | | fatal("(1) Reallocation of memory failed during removal of vertex neighbour in vtx_remove_neighbour",100); |
| | | //fprintf(stderr,"first alloc"); |
| | | /* repeat for the neighbour */ |
| | | /* find a neighbour */ |
| | | /* remove it from the list while shifting remaining neighbours up */ |
| | | j=0; |
| | | for(i=0;i<nvtx->neigh_no;i++){ |
| | | if(nvtx->neigh[i]!=vtx){ |
| | | nvtx->neigh[j]=nvtx->neigh[i]; |
| | |
| | | } |
| | | } |
| | | /* resize memory. potentionally time consuming. */ |
| | | // fprintf(stderr,"Neigbours=%d\n",nvtx->neigh_no); |
| | | nvtx->neigh_no--; |
| | | nvtx->neigh=(ts_vertex **)realloc(nvtx->neigh,nvtx->neigh_no*sizeof(ts_vertex *)); |
| | | // fprintf(stderr,"Neigbours=%d\n",nvtx->neigh_no); |
| | | if(nvtx->neigh == NULL && nvtx->neigh_no!=0) |
| | | fatal("Reallocation of memory failed during removal of vertex neighbour in vtx_remove_neighbour",100); |
| | | fatal("(2) Reallocation of memory failed during removal of vertex neighbour in vtx_remove_neighbour",100); |
| | | |
| | | return TS_SUCCESS; |
| | | } |
| | |
| | | ts_bool vtx_add_cneighbour(ts_bond_list *blist, ts_vertex *vtx1, ts_vertex *vtx2){ |
| | | ts_bool retval; |
| | | retval=vtx_add_neighbour(vtx1,vtx2); |
| | | // retval=vtx_add_neighbour(vtx2,vtx1); |
| | | if(retval==TS_SUCCESS) |
| | | retval=vtx_add_bond(blist,vtx1,vtx2); |
| | | return retval; |