Just enjoying callbacks

joking_with_callbacks.cpp

#include <iostream>

using namespace std;

void printall(char *xpto){
	for(int i=0; i < 3; i++){
		cout << *(xpto+i);
	}
	cout << "\n";
}

void changeall(char *xpto){
	for(int i=0; i < 3; i++){
		*(xpto+i) = '.';
	}
}

void func(void (*wrapper)(char *), char *any){
	(*wrapper)(any); 
}

int main(){
	char c[] = {'a', 's', 'r'};
	func(printall, c);
	func(changeall, c);
	func(printall, c);

	return 0;
}