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c++ - Why is the destructor getting called twice but the constructor only once?

My code is

class CTemp{
public:
    CTemp(){
        printf("
In cons");
    }
    ~CTemp(){
        printf("
In dest");
    }
};

void Dowork(CTemp obj)
{
    printf("
Do work");
}

int main()
{
    CTemp * obj = new CTemp();
    Dowork(*obj);
    delete obj;
    return 0;
}

The output that I get is

In cons
Do work
In dest
In dest

Now why does the constructor get called once but the destructor is called twice? Can someone please explain this?

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1 Answer

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by (71.8m points)
void Dowork(CTemp obj)

Here local-copy will be done, that will be destruct after exit from scope of DoWork function, that's why you see destructor-call.


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