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hey everyone Iamp;#39;m Nick and welcome to another episode of advanced topics so in this episode of the series weamp;#39;re going to be talking about copulation and more specifically the return value optimization and named return value optimization now both of these have to deal with the return iment object from a function alright so on that return if we end up doing a copy of that object it could be very expensive if the cop if the object is very large so we want to try to avoid that or it lied that copy so letamp;#39;s look at some situations where we do the compiler helps us out and gets rid of that copy for us and some situations where the compiler is not able to so weamp;#39;ll go ahead and start by creating this object that weamp;#39;re going to return so weamp;#39;ll make a struct called s and weamp;#39;ll go ahead and put an array in S right so weamp;#39;ll call weamp;#39;ll make it into a called data and letamp;#39;s give it say four elements here and then thatamp;