add (ugly) stream support

janssonxx.h

@@ -2,6 +2,10 @@
 #define JANSSONXX_H 1
 
 #include <string>
+#include <ostream>
+#include <istream>
+#include <sstream>
+#include <cstdlib>
 
 namespace jansson {
 
@@ -238,4 +242,21 @@ private:
 
 } // namespace jansson
 
+// stream JSON value out
+std::ostream& operator<<(std::ostream& os, const jansson::Value& value) {
+	char* tmp = value.save_string();
+	os << tmp;
+	free(tmp);
+	return os;
+}
+
+// read JSON value
+std::istream& operator>>(std::istream& is, jansson::Value& value) {
+	std::stringstream tmp;
+	while (is)
+		tmp << static_cast<char>(is.get());
+	value = jansson::Value::load_string(tmp.str().c_str());
+	return is;
+}
+
 #endif

test.cc

@@ -117,5 +117,16 @@ int main() {
 	free(out_cstr);
 	ASSERT_EQ(out, "{\"bar\": 3,\"foo\": \"test\"}\n", "object did not serialize as expected");
 
+	std::istringstream instr(out);
+	instr >> e3;
+	ASSERT_TRUE(e3.is_object(), "e3 is not an object after stream read");
+	ASSERT_EQ(e3.size(), 2, "e3 has wrong size after stream read");
+	ASSERT_EQ(e3.get("bar").as_integer(), 3, "e3.bar has incorrect value after stream read");
+	ASSERT_EQ(e3.get("foo").as_string(), "test", "ee3.test has incorrect value after stream read");
+
+	std::ostringstream outstr;
+	outstr << e3;
+	ASSERT_EQ(instr.str(), "{\"bar\": 3,\"foo\": \"test\"}\n", "object did not serialize as expected");
+
 	return 0;
 }