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How can I permanently enable line numbers in IntelliJ?
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How to connect android emulator to the internet
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Asynchronous Requests with Python requests
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Quick unix command to display specific lines in the middle of a file?
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How to declare string constants in JavaScript? [duplicate]
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List of Rails Model Types
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The attributes are SQL types, hence the following are supported:
:binary
:boolean
:date
:datet...
Is returning by rvalue reference more efficient?
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Beta_ab&&
Beta::toAB() const {
return move(Beta_ab(1, 1));
}
This returns a dangling reference, just like with the lvalue reference case. After the function returns, the temporary object will get destructed. You should return Beta_ab by value, like the following
Beta_ab...