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, 50 insertions, 0 deletions

diff --git a/lemon/test/test_tools.h b/lemon/test/test_tools.h
new file mode 100644
index 0000000..3300356
--- /dev/null
+++ b/lemon/test/test_tools.h
@@ -0,0 +1,50 @@
+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2010
+ * 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.
+ *
+ */
+
+#ifndef LEMON_TEST_TEST_TOOLS_H
+#define LEMON_TEST_TEST_TOOLS_H
+
+///\ingroup misc
+///\file
+///\brief Some utilities to write test programs.
+
+#include <iostream>
+#include <stdlib.h>
+
+///If \c rc is fail, writes an error message and exits.
+
+///If \c rc is fail, writes an error message and exits.
+///The error message contains the file name and the line number of the
+///source code in a standard from, which makes it possible to go there
+///using good source browsers like e.g. \c emacs.
+///
+///For example
+///\code check(0==1,"This is obviously false.");\endcode will
+///print something like this (and then exits).
+///\verbatim file_name.cc:123: error: This is obviously false. \endverbatim
+#define check(rc, msg)                                                  \
+  {                                                                     \
+    if(!(rc)) {                                                         \
+      std::cerr << __FILE__ ":" << __LINE__ << ": error: "              \
+                << msg << std::endl;                                    \
+      abort();                                                          \
+    } else { }                                                          \
+  }                                                                     \
+
+
+#endif