constmem.cpp

来自「Thinking in C++ 2nd edition source code 」· C++ 代码 · 共 26 行

//: C03:Constmem.cpp
// From Thinking in C++, 2nd Edition
// at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Constant data members of a class

class Counter {
  int count;
  const int max;  // 'int' is required
public:
  Counter(int Max = 10, int init = 0) : max(Max) {
    count = init;
  }
  int incr() {
    if(++count == max) return 1;
    return 0;
  }
};
int main() {
  Counter A, B(14), C(5,4);
  while(!B.incr())
    if(A.incr())
      C.incr();
} ///:~