int main() {
igraph_t graph;
FILE *ifile = fopen("cattr_bool_bug.graphml", "r");
if (!ifile) {
printf("Cannot open input file");
return 1;
}
igraph_i_set_attribute_table(&igraph_cattribute_table);
igraph_read_graph_graphml(&graph, ifile, 0);
fclose(ifile);
check_attr(&graph, 10);
igraph_to_directed(&graph, IGRAPH_TO_DIRECTED_ARBITRARY);
check_attr(&graph, 20);
if (GAB(&graph, "loops")) { return 2; }
igraph_destroy(&graph);
return 0;
}
int main(int argc, char* argv[])
{
igraph_i_set_attribute_table(&igraph_cattribute_table);
char * in_graph_fn;
char * out_graph_fn;
if (argc < 3) {
printf("[ERROR] usage: mm-writer in_graph_fn out_graph_fn\n");
exit(-1);
}
else {
in_graph_fn = &argv[1][0];
out_graph_fn = &argv[2][0];
}
igraph_t g;
FILE *ifile, *ofile;
ifile = fopen(in_graph_fn, "r");
if (ifile == 0) {
return 10;
}
igraph_read_graph_graphml(&g, ifile, 0);
fclose(ifile);
igraph_to_directed(&g, IGRAPH_TO_DIRECTED_ARBITRARY);
printf("The graph stats:\n");
printf("Vertices: %li\n", (long int) igraph_vcount(&g));
printf("Edges: %li\n", (long int) igraph_ecount(&g));
printf("Directed: %i\n", (int) igraph_is_directed(&g));
ofile = fopen(out_graph_fn, "w");
if (ofile == 0) {
return 10;
}
// Write MM format
fprintf(ofile, "%li %li %li\n", (long int) igraph_vcount(&g),
(long int) igraph_vcount(&g), (long int) igraph_ecount(&g));
igraph_integer_t to;
igraph_integer_t from;
igraph_integer_t eid;
igraph_real_t weight;
for (eid = 0; eid < (long int) igraph_ecount(&g); eid++) {
igraph_edge(&g, eid, &from, &to);
weight = igraph_cattribute_EAN(&g, "weight",eid); // TODO: time
fprintf(ofile, "%i %i %f\n", from, to, weight);
//printf("Edge %i => %i --> %i\n", eid, from, to);
//printf("Edge %i has weight %f\n", eid, igraph_cattribute_EAN(&g, "weight",eid)); // TODO: time
}
// For all. TODO: time
#if 0
igraph_es_t eids;
igraph_es_all(&eids, IGRAPH_EDGEORDER_ID); // Order edges
igraph_vector_t result;
igraph_vector_init(&result, (int long) igraph_ecount(&g));
igraph_cattribute_EANV(&g, "weight", eids, &result);
igraph_integer_t i;
for (i = 0; i < (int long) igraph_ecount(&g); i++)
printf("Edge %i value: %f\n", i, VECTOR(result)[i]);
// Free memory
igraph_es_destroy(&eids);
igraph_vector_destroy(&result);
#endif
igraph_destroy(&g);
fclose(ofile);
return 0;
}
