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quiz copy constructor
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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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