callback method test

Author: ggjae

cpp/callbacktest.cpp

@@ -0,0 +1,13 @@
+#include <iostream>
+using namespace std;
+void A(int number){
+    cout << "Hello" << number << "\n";
+}
+void B(void (*ptr) (int)){
+    ptr(2002);
+}
+int main(){
+    void (*p)(int) = &A;
+    B(p);
+    return 0;
+}