int main() {
igraph_t g;
igraph_vs_t vertices;
igraph_vector_t result1, result2;
igraph_rng_seed(igraph_rng_default(), 42);
igraph_vector_init(&result1, 0);
igraph_vector_init(&result2, 0);
igraph_erdos_renyi_game(&g, IGRAPH_ERDOS_RENYI_GNP, 100, .1,
IGRAPH_UNDIRECTED, IGRAPH_NO_LOOPS);
igraph_vs_seq(&vertices, 0, 99);
igraph_transitivity_local_undirected(&g, &result1, igraph_vss_all(),
IGRAPH_TRANSITIVITY_NAN);
igraph_transitivity_local_undirected(&g, &result2, vertices,
IGRAPH_TRANSITIVITY_NAN);
if (!igraph_vector_all_e(&result1, &result2)) {
igraph_vector_print(&result1);
igraph_vector_print(&result2);
return 1;
}
igraph_vector_destroy(&result1);
igraph_vector_destroy(&result2);
igraph_vs_destroy(&vertices);
igraph_destroy(&g);
return 0;
}
int main(void)
{
igraph_integer_t diameter;
igraph_t graph;
igraph_rng_seed(igraph_rng_default(), 42);
igraph_erdos_renyi_game(&graph, IGRAPH_ERDOS_RENYI_GNP, 1000, 5.0/1000, IGRAPH_UNDIRECTED, IGRAPH_NO_LOOPS);
igraph_diameter(&graph, &diameter, 0, 0, 0, IGRAPH_UNDIRECTED, 1);
printf("Diameter of a random graph with average degree 5: %d\n", (int) diameter);
igraph_destroy(&graph);
return 0;
}
int main() {
igraph_t g;
igraph_vector_ptr_t res;
igraph_integer_t i, n;
igraph_rng_seed(igraph_rng_default(), 42);
igraph_erdos_renyi_game(&g, IGRAPH_ERDOS_RENYI_GNM, 100, 3000, /* directed = */ 0, /* loops= */ 0);
igraph_vector_ptr_init(&res, 0);
BENCH("1 Cliques in random graph with 100 vertices and 3000 edges",
igraph_cliques(&g, &res, /* min_size= */ 0, /* max_size= */ 0);
);
/* call-seq:
* IGraph::GenerateRandom.erdos_renyi_game(type,n,p_or_m,directed,loops) -> IGraph
*
* Generates a random (Erdos-Renyi) graph.
*
* type: The type of the random graph, possible values:
*
* IGraph::ERDOS_RENYI_GNM - G(n,m) graph, m edges are selected uniformly
* randomly in a graph with n vertices.
*
* IGraph::ERDOS_RENYI_GNP - G(n,p) graph, every possible edge is included in
* the graph with probability p.
*
* n: The number of vertices in the graph.
*
* p_or_m: This is the p parameter for G(n,p) graphs and the m parameter
* for G(n,m) graphs.
*
* directed: Logical, whether to generate a directed graph.
*
* loops: Logical, whether to generate loops (self) edges.
*/
VALUE cIGraph_erdos_renyi_game(VALUE self, VALUE type, VALUE nodes, VALUE mp, VALUE directed, VALUE loops) {
igraph_t *graph;
VALUE new_graph;
new_graph = cIGraph_alloc(cIGraph);
Data_Get_Struct(new_graph, igraph_t, graph);
igraph_destroy(graph);
igraph_erdos_renyi_game(graph, NUM2INT(type), NUM2INT(nodes),
NUM2DBL(mp),
directed == Qtrue ? 1: 0,
loops == Qtrue ? 1: 0);
return new_graph;
}
int main() {
igraph_t graph;
igraph_matrix_t coords;
int i;
igraph_matrix_init(&coords, 0, 0);
for (i=0; i<10; i++) {
igraph_erdos_renyi_game(&graph, IGRAPH_ERDOS_RENYI_GNP, /*n=*/ 100,
/*p=*/ 2.0/100, IGRAPH_UNDIRECTED, /*loops=*/ 0);
igraph_layout_mds(&graph, &coords, /*dist=*/ 0, /*dim=*/ 2,
/*options=*/ 0);
igraph_destroy(&graph);
}
igraph_matrix_destroy(&coords);
return 0;
}
int main() {
igraph_t graph;
igraph_vector_ptr_t cliques;
igraph_rng_t rng;
igraph_rng_init(&rng, &igraph_rngtype_mt19937);
igraph_rng_seed(&rng, 42);
igraph_rng_seed(igraph_rng_default(), 42);
igraph_erdos_renyi_game(&graph, IGRAPH_ERDOS_RENYI_GNP,
/*n=*/ 100, /*p=*/ 0.7, /*directed=*/ 0,
/*loops=*/ 0, &rng);
igraph_vector_ptr_init(&cliques, 0);
igraph_maximal_cliques(&graph, &cliques, /*min_size=*/ 15,
/*max_size=*/ 0);
print_and_destroy(&cliques);
igraph_destroy(&graph);
igraph_rng_destroy(&rng);
return 0;
}
int main(int argc, char* argv[])
{
if (argc != 9)
{
cout << "Usage: ./release/fixating <Update Rule: \"Bd\", \"dB\"> <integer: population size> <\"directed\" or \"undirected\"> <double: fitness of mutant> <category of graph: \"complete\", \"ER\", \"BB\", \"WS\", \"geo\", or \"custom\" > <secondary parameter for the category of graph: \"GNM\" or \"GNP\" for Erdos Reny, double power of preference for Barabasi, int dimension for small world, bool periodic for geometric, , adjacency matrix for custom> <tertiary parameter for the category of graph: probability for every edge in Erdos-Reny GNP and geometric, number of edges for Erdos-Reny GNM, m for barabasi, probability of rewiring for small world, 0 for custom> <output: \"probability\", \"conditional\", \"unconditional\", or \"all\">" << endl;
return -1;
}
// ---------- If you want to stop time, uncomment all comments with //CLOCK//
//CLOCK//
std::clock_t start;
//CLOCK//
double bt = 0;
//CLOCK//
double st = 0;
//counting variable for the graph generators
int counts = 0;
const unsigned int popSize = atoi(argv[2]);
if (popSize > 23)
{
cout << "Code only possible for population size up to 23... aborting..." << endl;
return -1;
}
const unsigned int numStates = 1 << popSize;
string update = argv[1];
if (update != "dB" && update != "Bd")
{
cout << "Only \"Bd\" or \"dB\" possible for update rule!... aborting..." << endl;
return -1;
}
float fitnessMutants = atof(argv[4]);
string direction = argv[3];
string category = argv[5];
igraph_t graph;
int admat[popSize * popSize];
string output = argv[8];
if (output != "probability" && output != "conditional" && output != "unconditional" && output != "all")
{
cout << "Only \"probability\", \"unconditional\", \"conditional\" or \"all\" possible for output!... aborting..." << endl;
return -1;
}
// ---------- Code snippet for fully connected graph ----------
if (category == "complete")
{
if (direction == "undirected")
{
igraph_full(&graph, popSize, false, false);
}
else if (direction == "directed")
{
igraph_full(&graph, popSize, true, false);
}
else
{
cout << "Only \"directed\" and \"undirected\" possible for direction of graph!... aborting..." << endl;
return -1;
}
}
// ---------- Code snippet for random graph ----------
else if (category == "ER")
{
string gn = argv[6];
igraph_rng_seed(igraph_rng_default(), std::clock());
igraph_bool_t isConnected = 0;
if (direction == "directed")
{
while ((isConnected == 0) & (counts < maxcount))
{
if (gn == "GNP")
{
double edgeprob = atof(argv[7]);
if ((edgeprob > 1) || (edgeprob < 0))
{
cout << "probabilities larger than 1 or smaller than 0 ...aborting..." << endl;
return -1;
}
igraph_erdos_renyi_game(&graph, IGRAPH_ERDOS_RENYI_GNP,
popSize, edgeprob,
true, false);
}
else if (gn == "GNM")
{
int edgenumber = atoi(argv[7]);
if ((edgenumber < 1) || (edgenumber > popSize*(popSize-1)))
{
cout << "number of edges must be greater than 1 and smaller than N*(N-1) ...aborting..." << endl;
return -1;
}
igraph_erdos_renyi_game(&graph, IGRAPH_ERDOS_RENYI_GNM,
popSize, edgenumber,
true, false);
}
else
{
cout << "Only \"GNM\" and \"GNP\" possible ... aborting..." << endl;
}
igraph_is_connected(&graph, &isConnected, IGRAPH_STRONG);
counts++;
}
if (counts == maxcount)
{
cout << "Probability or number of edges too low... Did not find a connected graph after "<< maxcount <<" attempts... aborting..." << endl;
return -1;
}
}
else if (direction == "undirected")
{
int counts = 0;
while ((isConnected == 0) & (counts < maxcount))
{
if (gn == "GNP")
{
double edgeprob = atof(argv[7]);
if ((edgeprob > 1) || (edgeprob < 0))
{
cout << "probabilities larger than 1 or smaller than 0 ...aborting..." << endl;
return -1;
}
igraph_erdos_renyi_game(&graph, IGRAPH_ERDOS_RENYI_GNP,
popSize, edgeprob,
false, false);
}
else if (gn == "GNM")
{
int edgenumber = atoi(argv[7]);
if ((edgenumber < 1) || (edgenumber > popSize*(popSize-1)/2))
{
cout << "number of edges must be greater than 1 and smaller than N*(N-1)/2 ...aborting..." << endl;
return -1;
}
igraph_erdos_renyi_game(&graph, IGRAPH_ERDOS_RENYI_GNM,
popSize, edgenumber,
false, false);
}
else
{
cout << "Only \"GNM\" and \"GNP\" possible ... aborting..." << endl;
}
igraph_is_connected(&graph, &isConnected, IGRAPH_STRONG);
counts++;
}
if (counts == maxcount)
{
cout << "Probability or number of edges too low... Did not find a connected graph after "<< maxcount <<" attempts... aborting..." << endl;
return -1;
}
}
else
{
cout << "Only \"directed\" and \"undirected\" possible for direction of graph!... aborting..." << endl;
return -1;
}
}
//---------------------------- Code snippet for small world network --------------------------------//
else if (category == "WS")
{
igraph_rng_seed(igraph_rng_default(), std::clock());
igraph_bool_t isConnected = 0;
double edgeprob = atof(argv[7]);
if ((edgeprob > 1) || (edgeprob < 0))
{
cout << "probabilities larger than 1 or smaller than 0 ...aborting..." << endl;
return -1;
}
int dim = atoi(argv[6]);
int latSize = pow(popSize,1/double(dim));
if (direction == "directed")
{
while ((isConnected == 0) & (counts < maxcount))
{
igraph_watts_strogatz_game(&graph, dim,
latSize, 1,
edgeprob, 0,
0);
igraph_is_connected(&graph, &isConnected, IGRAPH_STRONG);
counts++;
}
}
else if (direction == "undirected")
{
while ((isConnected == 0) & (counts < maxcount))
{
igraph_watts_strogatz_game(&graph, dim,
latSize, 1,
edgeprob, 0,
0);
igraph_is_connected(&graph, &isConnected, IGRAPH_STRONG);
counts++;
}
}
else
{
cout << "Only \"directed\" and \"undirected\" possible for direction of graph!... aborting..." << endl;
return -1;
}
if (counts == maxcount)
{
cout << "Did not find a connected graph after "<< maxcount <<" attempts... aborting..." << endl;
return -1;
}
}
//---------------------------- Code snippet for geometric generator --------------------------------//
else if(category == "geo")
{
igraph_rng_seed(igraph_rng_default(), std::clock());
igraph_bool_t isConnected = 0;
double edgeprob = atof(argv[7]);
if ((edgeprob > 1) || (edgeprob < 0))
{
cout << "probabilities larger than 1 or smaller than 0 ...aborting..." << endl;
return -1;
}
bool torus = (atoi(argv[6]) == 1);
double radius = sqrt(edgeprob/3.14);
if (direction == "directed")
{
while ((isConnected == 0) & (counts < maxcount))
{
igraph_grg_game(&graph, popSize,
radius, torus,
0, 0);
igraph_is_connected(&graph, &isConnected, IGRAPH_STRONG);
counts++;
}
}
else if (direction == "undirected")
{
while ((isConnected == 0) & (counts < maxcount))
{
igraph_grg_game(&graph, popSize,
radius, torus,
0, 0);
igraph_is_connected(&graph, &isConnected, IGRAPH_STRONG);
counts++;
}
}
else
{
cout << "Only \"directed\" and \"undirected\" possible for direction of graph!... aborting..." << endl;
return -1;
}
if (counts == maxcount)
{
cout << "Probability or number of edges too low... Did not find a connected graph after "<< maxcount <<" attempts... aborting..." << endl;
return -1;
}
}
//---------------------------- Code snippet for barabasi generator --------------------------------//
else if(category == "BB")
{
double power = atof(argv[6]);
int m = atoi(argv[7]);
igraph_rng_seed(igraph_rng_default(), std::clock());
igraph_bool_t isConnected = 0;
if (direction == "directed")
{
cout << "directed Barabasi-Albert never creates connected graphs, use undirected instead! aborting..." << endl;
return -1;
}
else if (direction == "undirected")
{
while ((isConnected == 0) & (counts < maxcount))
{
igraph_barabasi_game(&graph, popSize,
power,
m,
0,
0,
1.0,
false,
IGRAPH_BARABASI_PSUMTREE,
0);
igraph_is_connected(&graph, &isConnected, IGRAPH_STRONG);
counts++;
}
}
else
{
cout << "Only \"directed\" and \"undirected\" possible for direction of graph!... aborting..." << endl;
return -1;
}
if (counts == maxcount)
{
cout << "Did not find a connected graph after "<< maxcount <<" attempts... aborting..." << endl;
return -1;
}
}
// ---------- Code snippet for custom graph ----------
else if(category == "custom")
{
std::string admats = argv[6];
if (admats.size() != popSize*popSize)
{
cout << "adjacency matrix has the wrong size... aborting..." << endl;
return -1;
}
std::vector<int> ints;
std::transform(std::begin(admats), std::end(admats), std::back_inserter(ints),
[](char c)
{
return c - '0';
}
);
std::copy(ints.begin(), ints.end(), admat);
}
else
{
cout << "Only \"complete\", \"ER\", \"BB\", \"WS\", or \"geo\" as categories... aborting..." << endl;
return -1;
}
// ---------- Here the adjacency matrix gets copied into an array ----------
if(category!="custom")
{
igraph_matrix_t admatv;
igraph_matrix_init(&admatv, 0,0);
igraph_get_adjacency( &graph, &admatv,IGRAPH_GET_ADJACENCY_BOTH,false);
for(unsigned int i = 0 ; i < popSize ; i++)
{
for(unsigned int k = 0 ; k < popSize ; k++)
{
admat[ i*popSize + k] = MATRIX(admatv,i,k );
}
}
igraph_destroy(&graph);
igraph_matrix_destroy(&admatv);
}
for (unsigned int i=0; i<popSize; i++) {
for (unsigned int j=0; j<popSize; j++) {
// If you want to print the adjacency matrix:
cout<<admat[i * popSize + j]<<" ";
}
}
cout<<endl;
t_vectorFP data;
t_vectorInt row;
t_vectorInt col;
data.reserve(popSize * numStates);
row.reserve(popSize * numStates);
col.reserve(popSize * numStates);
//CLOCK//
start = std::clock();
createTransitionMatrix(popSize, numStates, fitnessMutants, update, admat, data, row, col);
std::vector<T> tripletList;
tripletList.reserve(popSize * numStates);
for( unsigned int j = 0 ; j < data.size() ; j++)
{
tripletList.push_back(T(col.at(j),row.at(j),data.at(j)));
}
SpMat mat(numStates,numStates);
mat.setFromTriplets(tripletList.begin(), tripletList.end());
// Stopping time after creating transition matrix
//CLOCK//
bt = ( std::clock() - start ) / (double) CLOCKS_PER_SEC;
//for (int i = 0; i<data.size(); i++)
// cout<<"unconditional: transition prob from state "<<row[i]<<" to state "<<col[i]<<" is "<<data[i]<<endl;
string s1;
/* ---------- No distinguishing between "probability", "unconditional" time, and "conditional" time ---------- */
float * fixProbAllStates = static_cast<float*> (malloc(numStates * sizeof(float)));
fixProb(mat, popSize, numStates, fixProbAllStates);
// Stopping time after solving fixation probabilities
//CLOCK//
st = ( std::clock() - start) / (double) CLOCKS_PER_SEC - bt;
float probOne = 0.0;
for(unsigned int i = 0; i < popSize; i++)
{
int j = 1 << i;
probOne = probOne + fixProbAllStates[j];
}
probOne = probOne / (float)(popSize);
cout << "fixation probability:" << probOne << endl;
/* ---------- Printing the fixation probability starting from all states ---------- */
/*
for(unsigned int i = 0; i < numStates; i++)
{
bitset<23> b1(i);
s1 = b1.to_string();
cout<<"fixation probability in state ";
cout<< s1.substr(23-popSize,popSize);
cout <<" is "<<fixProbAllStates[i]<<endl;
}
*/
if((output == "unconditional")||(output == "all"))
{
float * uncondFixTimeAllStates = static_cast<float*> (malloc(numStates * sizeof(float)));
// Stopping the time for solving for unconditional fixation time
//CLOCK// start = std::clock();
//CLOCK// bt = ( std::clock() - start ) / (double) CLOCKS_PER_SEC;
time(mat, popSize, numStates, uncondFixTimeAllStates);
//CLOCK//
float avUncondTime = 0.0;
for(unsigned int i = 0 ; i < popSize ; i++)
{
int j = 1 << i;
avUncondTime = avUncondTime + uncondFixTimeAllStates[j];
}
avUncondTime = avUncondTime / (float)(popSize);
free(uncondFixTimeAllStates);
cout<< "unconditional fixation time:" << avUncondTime << endl;
}
/* ---------- Printing the average unconditional fixation time starting from all states ---------- */
//for(unsigned int i = 0; i < numStates; i++)
//{
// bitset<23> b1(i);
// s1 = b1.to_string();
//cout<<"Unconditional fixation time in state ";
//cout<< s1.substr (23-popSize,popSize);
//cout <<" is "<<uncondFixTimeAllStates[i]<<endl;
//}
//float * fixProbAllStates = (float*) malloc(numStates * sizeof(float));
//fixProb(mat, popSize, numStates, fixProbAllStates);
if((output == "conditional")||(output == "all"))
{
createConditionalTransitionMatrix(popSize, numStates, fixProbAllStates, data, row, col);
std::vector<T> tripletListCond;
tripletListCond.reserve(popSize * numStates);
for( unsigned int j = 0 ; j < data.size() ; j++)
{
tripletListCond.push_back(T(col.at(j),row.at(j),data.at(j)));
}
SpMat conditionalMatrix(numStates,numStates);
conditionalMatrix.setFromTriplets(tripletListCond.begin(), tripletListCond.end());
float * condFixTimeAllStates = static_cast<float*> (malloc(numStates * sizeof(float)));
time(conditionalMatrix, popSize, numStates, condFixTimeAllStates);
float avCondTime = 0.0;
for(unsigned int i = 0 ; i < popSize ; i++)
{
int j = 1 << i;
avCondTime = avCondTime + condFixTimeAllStates[j];
}
avCondTime = avCondTime / (float)(popSize);
free(condFixTimeAllStates);
cout << "conditional fixation time:" << avCondTime << endl;
}
free(fixProbAllStates);
/* ---------- Printing the average conditional fixation time starting from all states ---------- */
//for(unsigned int i = 0; i < numStates; i++)
//{
//bitset<23> b1(i);
//s1 = b1.to_string();
//cout<<"Conditional fixation time in state ";
//cout<< s1.substr (23-popSize,popSize);
//cout <<" is "<<condFixTimeAllStates[i]<<endl;
//}
st = ( std::clock() - start) / (double) CLOCKS_PER_SEC - bt;
//CLOCK//
cout<<"building time: "<< bt <<'\n';
//CLOCK//
cout<<"solving time: "<< st << "\n\n";
}
Graph::Graph(int size, double p) : size(size){
graph = new igraph_t;
igraph_erdos_renyi_game(graph, IGRAPH_ERDOS_RENYI_GNP, size, p, 0, 0);
}
int main() {
igraph_t g, g2, cli;
igraph_vector_t perm;
igraph_vector_ptr_t cliques;
igraph_integer_t no;
int i;
igraph_rng_seed(igraph_rng_default(), 42);
/* Create a graph that has a random component, plus a number of
relatively small cliques */
igraph_vector_init_seq(&perm, 0, NODES-1);
igraph_erdos_renyi_game(&g, IGRAPH_ERDOS_RENYI_GNM, NODES, NODES,
/*directed=*/ 0, /*loops=*/ 0, igraph_rng_default());
igraph_full(&cli, CLIQUE_SIZE, /*directed=*/ 0, /*loops=*/ 0);
for (i=0; i<NO_CLIQUES; i++) {
/* Permute vertices of g */
permutation(&perm);
igraph_permute_vertices(&g, &g2, &perm);
igraph_destroy(&g);
g=g2;
/* Add a clique */
igraph_union(&g2, &g, &cli, /*edge_map1=*/ 0, /*edge_map2=*/ 0);
igraph_destroy(&g);
g=g2;
}
igraph_simplify(&g, /*multiple=*/ 1, /*loop=*/ 0, /*edge_comb=*/ 0);
igraph_vector_destroy(&perm);
igraph_destroy(&cli);
/* Find the maximal cliques */
igraph_vector_ptr_init(&cliques, 0);
igraph_maximal_cliques(&g, &cliques, /*min_size=*/ 3,
/*max_size=*/ 0 /*no limit*/);
igraph_maximal_cliques_count(&g, &no, /*min_size=*/ 3,
/*max_size=*/ 0 /*no limit*/);
if (no != igraph_vector_ptr_size(&cliques)) { return 1; }
/* Print and destroy them */
print_and_destroy_cliques(&cliques);
/* Clean up */
igraph_vector_ptr_destroy(&cliques);
igraph_destroy(&g);
/* Build a triangle with a loop (thanks to Emmanuel Navarro) */
igraph_small(&g, 3, IGRAPH_UNDIRECTED, 0, 1, 1, 2, 2, 0, 0, 0, -1);
/* Find the maximal cliques */
igraph_vector_ptr_init(&cliques, 0);
igraph_maximal_cliques(&g, &cliques, /*min_size=*/ 3,
/*max_size=*/ 0 /*no limit*/);
igraph_maximal_cliques_count(&g, &no, /*min_size=*/ 3,
/*max_size=*/ 0 /*no limit*/);
if (no != igraph_vector_ptr_size(&cliques)) { return 2; }
/* Print and destroy them */
print_and_destroy_cliques(&cliques);
/* Clean up */
igraph_vector_ptr_destroy(&cliques);
igraph_destroy(&g);
return 0;
}
int check_simple() {
igraph_t g;
long int nodes=100;
long int edges=1000;
igraph_real_t p=3.0/nodes;
long int runs=10;
long int r, e, ecount;
igraph_vector_t eids, pairs, path;
srand(time(0));
igraph_vector_init(&pairs, edges*2);
igraph_vector_init(&path, 0);
igraph_vector_init(&eids, 0);
for (r=0; r<runs; r++) {
igraph_erdos_renyi_game(&g, IGRAPH_ERDOS_RENYI_GNP, nodes, p,
/*directed=*/ 0, /*loops=*/ 0);
ecount=igraph_ecount(&g);
for (e=0; e<edges; e++) {
long int edge=RNG_INTEGER(0, ecount-1);
VECTOR(pairs)[2*e] = IGRAPH_FROM(&g, edge);
VECTOR(pairs)[2*e+1] = IGRAPH_TO(&g, edge);
}
igraph_get_eids(&g, &eids, &pairs, /*path=*/ 0, 0, /*error=*/ 1);
for (e=0; e<edges; e++) {
long int edge=VECTOR(eids)[e];
long int from1=VECTOR(pairs)[2*e];
long int to1=VECTOR(pairs)[2*e+1];
long int from2=IGRAPH_FROM(&g, edge);
long int to2=IGRAPH_TO(&g, edge);
long int min1= from1 < to1 ? from1 : to1;
long int max1= from1 < to1 ? to1 : from1;
long int min2= from2 < to2 ? from2 : to2;
long int max2= from2 < to2 ? to2 : from2;
if (min1 != min2 || max1 != max2) {
return 11;
}
}
igraph_diameter(&g, /*res=*/ 0, /*from=*/ 0, /*to=*/ 0, &path,
IGRAPH_UNDIRECTED, /*unconn=*/ 1);
igraph_get_eids(&g, &eids, /*pairs=*/ 0, &path, 0, /*error=*/ 1);
for (e=0; e<igraph_vector_size(&path)-1; e++) {
long int edge=VECTOR(eids)[e];
long int from1=VECTOR(path)[e];
long int to1=VECTOR(path)[e+1];
long int from2=IGRAPH_FROM(&g, edge);
long int to2=IGRAPH_TO(&g, edge);
long int min1= from1 < to1 ? from1 : to1;
long int max1= from1 < to1 ? to1 : from1;
long int min2= from2 < to2 ? from2 : to2;
long int max2= from2 < to2 ? to2 : from2;
if (min1 != min2 || max1 != max2) {
return 12;
}
}
igraph_destroy(&g);
}
igraph_vector_destroy(&path);
igraph_vector_destroy(&pairs);
igraph_vector_destroy(&eids);
return 0;
}
