Created
November 27, 2017 18:22
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Which of these compile?
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#include <memory> | |
using namespace std; | |
void accept_val(unique_ptr<int> i); | |
void accept_ref(unique_ptr<int> &i); | |
void accept_cref(const unique_ptr<int> &i); | |
void accept_rref(unique_ptr<int> &&i); | |
int main(int argc, char **argv) { | |
unique_ptr<int> i = make_unique<int>(1); | |
accept_val(i); // 1 (val-val) | |
accept_val(move(i)); // 2 (val-move) | |
accept_val(make_unique<int>(1)); // 3 (val-temp) | |
accept_ref(i); // 4 (ref-val) | |
accept_ref(move(i)); // 5 (ref-move) | |
accept_ref(make_unique<int>(1)); // 6 (ref-temp) | |
accept_cref(i); // 7 (cref-val) | |
accept_cref(move(i)); // 8 (cref-move) | |
accept_cref(make_unique<int>(1)); // 9 (cref-temp) | |
accept_rref(i); // 10 (rref-val) | |
accept_rref(move(i)); // 11 (rref-move) | |
accept_rref(make_unique<int>(1)); // 12 (rref-temp) | |
} |
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