Add the LEMON graph library source to the repo

I'll likely be using it, so this just makes it easier to get to from
elsewhere. If I end up not using it then I can just delete it.

1 files changed, 40 insertions, 0 deletions

diff --git a/lemon/test/random_test.cc b/lemon/test/random_test.cc
new file mode 100644
index 0000000..49dd8b6
--- /dev/null
+++ b/lemon/test/random_test.cc
@@ -0,0 +1,40 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2009
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+#include <lemon/random.h>
+#include "test_tools.h"
+
+int seed_array[] = {1, 2};
+
+int main()
+{
+  double a=lemon::rnd();
+  check(a<1.0&&a>0.0,"This should be in [0,1)");
+  a=lemon::rnd.gauss();
+  a=lemon::rnd.gamma(3.45,0);
+  a=lemon::rnd.gamma(4);
+  //Does gamma work with integer k?
+  a=lemon::rnd.gamma(4.0,0);
+  a=lemon::rnd.poisson(.5);
+
+  lemon::rnd.seed(100);
+  lemon::rnd.seed(seed_array, seed_array +
+                  (sizeof(seed_array) / sizeof(seed_array[0])));
+
+  return 0;
+}