Why does push_back() take Object&& as parameter, and not simply a reference of the object, like Object&?
What is this operator?
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McLovin
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1It is the move operator. Please read http://stackoverflow.com/questions/3106110/what-are-move-semantics – Ed Heal Jan 31 '16 at 17:05
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Good question. Allthough I have been programming in C++ quite a lot I actually never saw such construct. – Jan 31 '16 at 17:05
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3Lookup `std::move` please! – πάντα ῥεῖ Jan 31 '16 at 17:05
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2It's not a "reference to a reference", such things doesn't exist. You might want to learn about ["Move semantics and ***rvalue references*** in C++11"](http://www.cprogramming.com/c++11/rvalue-references-and-move-semantics-in-c++11.html), – Some programmer dude Jan 31 '16 at 17:05
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@EdHeal `Object&&` is a type, not an operator – M.M Jan 31 '16 at 20:16
1 Answers
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That would be the move operator, wich is new since c++11. This allows you to move objects into your vector instead of copying them. Google search for a more detailed descriptiob of the move operator.
Teimpz
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