1 files changed, 18 insertions, 0 deletions
diff --git a/tests/exec/ref3.cpp b/tests/exec/ref3.cpp
new file mode 100644
index 0000000..ba58365
--- /dev/null
+++ b/tests/exec/ref3.cpp
@@ -0,0 +1,18 @@
+#include <iostream>
+
+void f(int &y) {
+  y = y + 1;
+}
+
+int main() {
+  int x = 41;
+  std::cout << "x = " << x << "\n";
+  f(x);
+  std::cout << "x = " << x << "\n";
+  f(x);
+  std::cout << "x = " << x << "\n";
+  x = 0;
+  std::cout << "x = " << x << "\n";
+  f(x);
+  std::cout << "x = " << x << "\n";
+}