fix: add missing optional include in test file

DNKpp · Dec 10, 2022 · 8f456d8 · 8f456d8
1 parent 34bdb93
commit 8f456d8
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/tests/concepts/stl_extensions.cpp b/tests/concepts/stl_extensions.cpp
@@ -7,6 +7,8 @@
 
 #include "../helper.hpp"
 
+#include <optional>
+
 #include "Simple-Utility/concepts/stl_extensions.hpp"
 
 using namespace sl::concepts;