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quiz copy constructor

Anonymous
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#include <iostream>
struct A
{
A() : val() {}
A(int v) : val(v) {}
A(A a) : val(a.val) {}
int val;
};
int main(int argc, char** argv)
{
A a1(5);
A a2(a1);
std::cout << a1.val + a2.val << std::endl;
return 0;
}
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