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What are copy elision and return value optimization?
...ies an object with static storage duration
int main()
{
ABC c1(21); // direct-initialization, calls C::C(42)
ABC c2 = ABC(21); // copy-initialization, calls C::C( C(42) )
std::cout << n << std::endl; // prints 0 if the copy was elided, 1 otherwise
return 0;
}
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edited Dec 21 '19 at 4:00
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IEnumerable to string [duplicate]
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edited Jun 21 '17 at 15:38
answered Jul 25 '12 at 16:19
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