Passing function as parameter

cpp/func.cpp

@@ -0,0 +1,44 @@
+#include <iostream>
+
+using namespace std;
+
+// Store your function in a variable.
+// Function with no arguments and no return.
+void (*func)() = 0;
+// Function with two arguments and return.
+int (*arg_func)(int, int) = 0;
+
+void print()
+{
+    cout << "Hooray" << endl;
+}
+
+int sum(int a, int b)
+{
+    return a + b;
+}
+
+// Passing function as argument.
+void call_function(void (*f)())
+{
+    f();
+}
+
+// Passing function with parameters as argument.
+int call_arg_function(int (*f)(int, int))
+{
+    return f(2, 2);
+}
+
+int main(int argc, char const *argv[])
+{
+    func = print;
+    func(); // Print Hooray.
+    call_function(print); // Print Hooray.
+
+    arg_func = sum;
+    cout << arg_func(2, 2) << endl; // Print 4.
+    cout << call_arg_function(sum) << endl; // Print 4.
+
+    return 0;
+}