Add missing include file.

git-svn-id: https://svn.dealii.org/trunk@23069 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/tests/tests.h b/tests/tests.h
index 6de468cbbd294a071097ed2a7e48417aee0a963d..8f47f5e7fb9a68069379aca2bfc14df9eb3b9ff1 100644 (file)
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -25,6 +25,7 @@
 #include <cmath>
 #include <iostream>
 #include <fstream>
+#include <iostream>
 #include <sstream>
 #include <cstdlib>