1 files changed, 19 insertions, 0 deletions
diff --git a/testbed/func_pointer.c b/testbed/func_pointer.c
new file mode 100644
index 0000000..e7b6484
--- /dev/null
+++ b/testbed/func_pointer.c
@@ -0,0 +1,19 @@
+typedef void (*Func_t)();
+void f(Func_t func, int step) {
+    if (!step) return;
+    printf("i'm f\n");
+    func(func, step - 1);
+}
+void g(void (*func)(), int step) {
+    if (!step) return;
+    printf("i'm g\n");
+    func(func, step - 1);
+}
+int main() {
+    void (*func)(void (*ifunc)(), int step);
+    int x = 1;
+    if (x) func = f;
+    else func = g;
+    func(func, 5);
+    return 0;
+}