int main(int argc, char* argv[]) {
if(argc != 2) {
printf("USAGE: %s path/to/file.graphml.xml\n", argv[0]);
return -1;
}
char* fileName = argv[1];
igraph_attribute_table_t* oldHandler = igraph_i_set_attribute_table(&igraph_cattribute_table);
FILE* graphFile = fopen(fileName, "r");
if(!graphFile) {
printf("error opening graph file at %s\n", fileName);
return -2;
}
igraph_t graph;
time_t start = time(NULL);
int r = igraph_read_graph_graphml(&graph, graphFile, 0);
time_t end = time(NULL);
fclose(graphFile);
if(r != IGRAPH_SUCCESS) {
printf("error loading graph file at %s\n", fileName);
r = -3;
} else {
printf("successfully loaded graph file at %s in %li seconds\n", fileName, (long int)(end-start));
r = 0;
}
printf("graph has %li vertices and %li edges\n", (long int)igraph_vcount(&graph), (long int)igraph_ecount(&graph));
igraph_integer_t largestCliqueSize = 0;
start = time(NULL);
r = igraph_clique_number(&graph, &largestCliqueSize);
end = time(NULL);
if(r != IGRAPH_SUCCESS) {
printf("error computing igraph_clique_number\n");
r = -4;
} else {
printf("igraph_clique_number = %i in %li seconds\n", (int) largestCliqueSize, (long int)(end-start));
r = 0;
}
start = time(NULL);
igraph_destroy(&graph);
end = time(NULL);
printf("igraph_destroy finished in %li seconds\n", (long int)end-start);
return r;
}
int main() {
igraph_t g;
igraph_vector_ptr_t result;
igraph_es_t es;
igraph_integer_t omega;
long int i, j, n;
const int params[] = {4, -1, 2, 2, 0, 0, -1, -1};
igraph_set_warning_handler(warning_handler_ignore);
igraph_vector_ptr_init(&result, 0);
igraph_full(&g, 6, 0, 0);
igraph_es_pairs_small(&es, 0, 0, 1, 0, 2, 3, 5, -1);
igraph_delete_edges(&g, es);
igraph_es_destroy(&es);
for (j=0; j<sizeof(params)/(2*sizeof(params[0])); j++) {
if (params[2*j+1] != 0) {
igraph_cliques(&g, &result, params[2*j], params[2*j+1]);
} else {
igraph_largest_cliques(&g, &result);
}
n = igraph_vector_ptr_size(&result);
printf("%ld cliques found\n", (long)n);
canonicalize_list(&result);
for (i=0; i<n; i++) {
igraph_vector_t* v = (igraph_vector_t*) igraph_vector_ptr_e(&result,i);
print_vector(v);
igraph_vector_destroy(v);
free(v);
}
}
igraph_clique_number(&g, &omega);
printf("omega=%ld\n", (long)omega);
test_callback(&g);
igraph_destroy(&g);
igraph_tree(&g, 5, 2, IGRAPH_TREE_OUT);
igraph_cliques(&g, &result, 5, 5);
if (igraph_vector_ptr_size(&result) != 0) return 1;
igraph_destroy(&g);
igraph_vector_ptr_destroy(&result);
return 0;
}
