pointertofunction.cpp

来自「这是thinking in java第二版的书上原码.」· C++ 代码 · 共 21 行

//: C03:PointerToFunction.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
// Defining and using a pointer to a function
#include <iostream>
using namespace std;

void func() {
  cout << "func() called..." << endl;
}

int main() {
  void (*fp)();  // Define a function pointer
  fp = func;  // Initialize it
  (*fp)();    // Dereferencing calls the function
  void (*fp2)() = func;  // Define and initialize
  (*fp2)();
} ///:~