Add the vpsc library for IPSEPCOLA features

diff --git a/lib/vpsc/variable.cpp b/lib/vpsc/variable.cpp
new file mode 100644 (file)
index 0000000..27e160b
--- /dev/null
+++ b/lib/vpsc/variable.cpp
@@ -0,0 +1,21 @@
+/**
+ *
+ * Authors:
+ *   Tim Dwyer <tgdwyer@gmail.com>
+ *
+ * Copyright (C) 2005 Authors
+ *
+ * This version is released under the CPL (Common Public License) with
+ * the Graphviz distribution.
+ * A version is also available under the LGPL as part of the Adaptagrams
+ * project: http://sourceforge.net/projects/adaptagrams.  
+ * If you make improvements or bug fixes to this code it would be much
+ * appreciated if you could also contribute those changes back to the
+ * Adaptagrams repository.
+ */
+#include "variable.h"
+std::ostream& operator <<(std::ostream &os, const Variable &v) {
+       os << "(" << v.id << "=" << v.position() << ")";
+       return os;
+}
+