ambig.cpp

Think in C++ 第二版源码

//: C12:Ambig.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// Ambiguity in type conversion

class Y; // Class declaration

class X {
public:
  operator Y() const; // Convert X to Y
};

class Y {
public:
  Y(X); // Convert X to Y
};

void f(Y);

int main() {
  X x;
//! f(x); // Error: ambiguous conversion
} ///:~