typeconversionambiguity.cpp

来自「thingking in c++（C++编程思想） 各章节课后练习的答案」· C++ 代码 · 共 24 行

//: C12:TypeConversionAmbiguity.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
class Orange; // Class declaration

class Apple {
public:
  operator Orange() const; // Convert Apple to Orange
};

class Orange {
public:
  Orange(Apple); // Convert Apple to Orange
};

void f(Orange) {}

int main() {
  Apple a;
//! f(a); // Error: ambiguous conversion
} ///:~