First commit.

1 files changed, 29 insertions, 0 deletions

diff --git a/tests/exec/ref5.cpp b/tests/exec/ref5.cpp
new file mode 100644
index 0000000..1f9944b
--- /dev/null
+++ b/tests/exec/ref5.cpp
@@ -0,0 +1,29 @@
+#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";
+  int &z = x;
+  f(z);
+  std::cout << "x = " << x << "\n";
+  std::cout << "z = " << z << "\n";
+  int &u = z;
+  f(u);
+  std::cout << "x = " << x << "\n";
+  std::cout << "z = " << z << "\n";
+  std::cout << "u = " << u << "\n";
+  f(z);
+  std::cout << "x = " << x << "\n";
+  std::cout << "z = " << z << "\n";
+  std::cout << "u = " << u << "\n";
+  f(x);
+  std::cout << "x = " << x << "\n";
+  std::cout << "z = " << z << "\n";
+  std::cout << "u = " << u << "\n";
+}