c++ - It seems at a glance that a constructor return an object -

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there many ways initialize object, 1 of calling constructor of centain user-defined type. here examples.

hello my_hello = hello(3); hello my_hello(3);

as know, constructor doesn't return anything. however, above, seems return initialized object. furthermore, assignment operator makes more suspicious because means copys right-hand object left-hand object.

am guessing wrong? please explain it?

the declaration

hello my_hello = hello(3);

creates 2 objects. first temporary object hello(3), , temporary object copied through copy-constructor my_hello followed destruction of temporary object.

however, further muddle water, copying , destruction of temporary object may not happen due copy elision, common compiler optimization.


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