Add graph references

2026-06-28 13:49:01 +01:00
parent 0a9807e448
commit a11edf0c53
2578 changed files with 868045 additions and 0 deletions
@@ -0,0 +1,59 @@
+
+#include <igraph.h>
+#include <stdio.h>
+
+#include "test_utilities.h"
+
+void sort_and_print_vector(igraph_vector_int_t *v) {
+    igraph_vector_int_sort(v);
+    print_vector_int(v);
+}
+
+int main(void) {
+    igraph_t graph;
+    igraph_vector_int_t bridges;
+
+    igraph_vector_int_init(&bridges, 0);
+
+    igraph_empty(&graph, 0, IGRAPH_UNDIRECTED);
+    igraph_bridges(&graph, &bridges);
+    sort_and_print_vector(&bridges);
+    igraph_destroy(&graph);
+
+    igraph_empty(&graph, 1, IGRAPH_UNDIRECTED);
+    igraph_bridges(&graph, &bridges);
+    sort_and_print_vector(&bridges);
+    igraph_destroy(&graph);
+
+    igraph_empty(&graph, 2, IGRAPH_UNDIRECTED);
+    igraph_bridges(&graph, &bridges);
+    sort_and_print_vector(&bridges);
+    igraph_destroy(&graph);
+
+    igraph_small(&graph, /* num_nodes = */ 7, IGRAPH_UNDIRECTED,
+                 0, 1, 1, 2, 0, 2, 0, 3, 3, 4, 4, 5, 3, 5, 4, 6, -1);
+    igraph_bridges(&graph, &bridges);
+    sort_and_print_vector(&bridges);
+    igraph_destroy(&graph);
+
+    /* Test with disconnected graph. */
+    igraph_small(&graph, /* num_nodes = */ 16, IGRAPH_UNDIRECTED,
+                 0, 1, 1, 2, 1, 3, 4, 5, 5, 6, 4, 6, 4, 7, 7, 8, 4, 8, 9, 10, 10, 11,
+                 11, 12, 9, 12, 9, 13, 13, 14, -1);
+    igraph_bridges(&graph, &bridges);
+    sort_and_print_vector(&bridges);
+    igraph_destroy(&graph);
+
+    /* Test with multi-edges and self-loops. */
+    igraph_small(&graph, /* num_nodes = */ 3, IGRAPH_UNDIRECTED,
+                 0, 1, 0, 1, 1, 2, 2, 2, -1);
+    igraph_bridges(&graph, &bridges);
+    sort_and_print_vector(&bridges);
+    igraph_destroy(&graph);
+
+    igraph_vector_int_destroy(&bridges);
+
+    VERIFY_FINALLY_STACK();
+
+    return 0;
+}