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 +1,49 @@
+/*
+   igraph library.
+   Copyright (C) 2020  The igraph development team <igraph@igraph.org>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include <igraph.h>
+#include <stdio.h>
+
+int main(void) {
+    igraph_t graph;
+
+    /* Initialize the library. */
+    igraph_setup();
+
+    /* Create a directed path graph on 10 vertices. */
+    igraph_ring(&graph, 10, IGRAPH_DIRECTED, /* mutual= */ 0, /* circular= */ 0);
+
+    /* Output the edge list of the graph. */
+    printf("10-path graph:\n");
+    igraph_write_graph_edgelist(&graph, stdout);
+
+    /* Destroy the graph. */
+    igraph_destroy(&graph);
+
+    /* Create a 4-cycle graph. */
+    igraph_ring(&graph, 4, IGRAPH_UNDIRECTED, /* mutual= */ 0, /* circular= */ 1);
+
+    /* Output the edge list of the graph. */
+    printf("\n4-cycle graph:\n");
+    igraph_write_graph_edgelist(&graph, stdout);
+
+    /* Destroy the graph. */
+    igraph_destroy(&graph);
+
+    return 0;
+}