Add graph references

references/igraph-1.0.1/tests/unit/set.c

@@ -0,0 +1,85 @@
+/*
+   igraph library.
+   Copyright (C) 2006-2012  Gabor Csardi <csardi.gabor@gmail.com>
+   334 Harvard st, Cambridge MA, 02139 USA
+
+   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, write to the Free Software
+   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301 USA
+
+*/
+
+#include <igraph.h>
+#include <stdlib.h>
+
+#include "core/set.h"
+
+#include "test_utilities.h"
+
+void print_set(igraph_set_t *set, FILE *f) {
+    igraph_int_t state = 0;
+    igraph_int_t element;
+    while (igraph_set_iterate(set, &state, &element)) {
+        fprintf(f, " %" IGRAPH_PRId , element);
+    }
+    fprintf(f, "\n");
+}
+
+int main(void) {
+
+    igraph_set_t set;
+    igraph_int_t i;
+
+    /* simple init */
+    igraph_set_init(&set, 0);
+    igraph_set_destroy(&set);
+
+    /* addition, igraph_set_size */
+    igraph_set_init(&set, 10);
+    i = 10;
+    while (igraph_set_size(&set) < 10) {
+        igraph_set_add(&set, 2 * i);
+        i--;
+    }
+    while (igraph_set_size(&set) < 21) {
+        igraph_set_add(&set, 2 * i + 1);
+        i++;
+    }
+    print_set(&set, stdout);
+
+    /* adding existing element */
+    igraph_set_add(&set, 8);
+    if (igraph_set_size(&set) != 21) {
+        return 4;
+    }
+
+    /* igraph_set_contains */
+    if (igraph_set_contains(&set, 42) || !igraph_set_contains(&set, 7)) {
+        return 3;
+    }
+
+    /* igraph_set_empty, igraph_set_clear */
+    if (igraph_set_empty(&set)) {
+        return 1;
+    }
+    igraph_set_clear(&set);
+    if (!igraph_set_empty(&set)) {
+        return 2;
+    }
+    igraph_set_destroy(&set);
+
+    VERIFY_FINALLY_STACK();
+
+    return 0;
+}