diff --git a/constexpr.cc b/constexpr.cc
new file mode 100644
index 0000000..37a32a5
--- /dev/null
+++ b/constexpr.cc
@@ -0,0 +1,12 @@
+#include <iostream>
+using namespace std;
+
+int some_constant_func() {
+    return 41;
+}
+
+int my_int_arr[some_constant_func() + 1];
+
+int main(int argc, char * argv []) {
+    return 0;
+}