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// This structure has a non-trivial copy constructor so
// it needs to be passed by reference.
struct PassByRef {
PassByRef() = default;
PassByRef(const PassByRef &p){x = p.x;};
int x = 11223344;
};
PassByRef returnPassByRef() { return PassByRef(); }
int takePassByRef(PassByRef p) {
return p.x;
}
int main() {
PassByRef p = returnPassByRef();
p.x = 42;
return takePassByRef(p); // break here
}
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