Java-like annotations in C++

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故里飘歌
故里飘歌 2020-12-10 10:30

Is there something like Java\'s annotations in C++ ?

For example, the @Override annotation marks a function that it overrides another function, and if it wouldn\'t,

4条回答
  •  时光说笑
    2020-12-10 11:03

    There is C++0x, which has the override 'annotation'. Or, if you wanted to achieve more of the Java "interface" like-code that errors if you don't implement methods, you could use an abstract class:

        class Base {
    public:
        virtual void foo() = 0;
    };
    
    class Extended : public Base {
    public:
    
        void foo2() {
            cout << "hi" << endl;
    };
    
    int main() {
        Extended e;
        e.foo();
    }
    

    This will result in a compiler error if you don't override foo in the base class. The issue, however, is that the base class can't have it's own implementation.

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