copyingvsinitialization2.cpp

ThinkingC++中文版

//: C12:CopyingVsInitialization2.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
class Fi {};

class Fee {
public:
  Fee(int) {}
  Fee(const Fi&) {}
};

class Fo {
  int i;
public:
  Fo(int x = 0) : i(x) {}
  operator Fee() const { return Fee(i); }
};

int main() {
  Fo fo;
  Fee fee = fo;
} ///:~