Support writing variable types to streams natively

2 files changed, 18 insertions, 0 deletions

diff --git a/project2/common/variableType.cpp b/project2/common/variableType.cpp
index b19d2fd..2902638 100644
--- a/project2/common/variableType.cpp
+++ b/project2/common/variableType.cpp
@@ -264,3 +264,17 @@ VariableType::isNull() const
 	return (get<Null>());
 }
 
+std::basic_ostream<char> &
+operator<<(std::basic_ostream<char> & s, const Null &)
+{
+	s << "(null)";
+	return s;
+}
+
+std::basic_ostream<unsigned char> &
+operator<<(std::basic_ostream<unsigned char> & s, const Null &)
+{
+	s << "(null)";
+	return s;
+}
+
diff --git a/project2/common/variableType.h b/project2/common/variableType.h
index 5bf4c53..f2a6890 100644
--- a/project2/common/variableType.h
+++ b/project2/common/variableType.h
@@ -3,6 +3,7 @@
 
 #include <boost/any.hpp>
 #include <boost/date_time/posix_time/posix_time_types.hpp>
+#include <boost/date_time/posix_time/posix_time_io.hpp>
 #include <glibmm/ustring.h>
 #include <boost/variant.hpp>
 #include <boost/optional.hpp>
@@ -28,6 +29,9 @@ class Null {
 		bool operator==(const Null &) const { return true; }
 };
 
+std::basic_ostream<char> & operator<<(std::basic_ostream<char> &, const Null &);
+std::basic_ostream<unsigned char> & operator<<(std::basic_ostream<unsigned char> &, const Null &);
+
 class Boolean {
 	public:
 		Boolean(bool v);