functionpointer.cpp

来自「C++ sample code, for the book: C++ blac」· C++ 代码 · 共 23 行

#include <iostream>
#include <string>
using namespace std;

void printem(string text);
void caller_function(string text, void (*pointer_to_function)(string text));

int main()
{
    caller_function("Hello from C++", printem);

    return 0;
}

void printem(string text)
{
    cout << text << endl;
}

void caller_function(string text, void (*pointer_to_function)(string))
{
    (*pointer_to_function)(text);
}