catsinhats.cpp

Think in C++ 第二版源码

//: C03:CatsInHats.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Simple demonstration of recursion
#include <iostream>
using namespace std;

void removeHat(char cat) {
  for(char c = 'A'; c < cat; c++)
    cout << "  ";
  if(cat <= 'Z') {
    cout << "cat " << cat << endl;
    removeHat(cat + 1); // Recursive call
  } else
    cout << "VOOM!!!" << endl;
}

int main() {
  removeHat('A');
} ///:~