useful.h

Thinking in C++ 2nd edition source code which are all the cores of the book Thinking in C++ second e

//: C14:Useful.h
// From Thinking in C++, 2nd Edition
// at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// A class to reuse
#ifndef USEFUL_H_
#define USEFUL_H_

class X {
  int i;
  enum { factor = 11 };
public:
  X() { i = 0; }
  void set(int I) { i = I; }
  int read() const { return i; }
  int permute() { return i = i * factor; }
};
#endif // USEFUL_H_ ///:~