C++ Pass by reference
I am very familiar with C and Firmware development. I've dabbled in C++ but for higher level programming at a professional level I use Python and GoLang the most.
Could someone take a second to explain how pass by reference works in this specific case?
In theory... this should imply that if I make a FInventoryStack and pass it into this function, that my FInventoryStack will be operated on.
That is to say, instead of using the instance of UFGInventoryComponent's memory, I have created a new block of memory that will be written to.
So either the stack gets copied over to my memory, or only modifications made to out_stack during the function call are written to my memory.
I would think that would be exactly what we do not want.
I would expect to have a function that returns me a pointer to the stack, so that we can call operations on that stack.
Am I just not understanding how C++ works? Or maybe this is a weird case because I see an example later in the header file that I think might be what I'm after, but they are protected
and
My basic understanding is that when a reference is returned, unlike return by value which calls the copy-constructor, instead we pass back a reference to the memory.
Depending on how CSS returned that variable there might be some issues tho.
I really need to not copy memory all over the place. Hoping someone has some information.
Could someone take a second to explain how pass by reference works in this specific case?
In theory... this should imply that if I make a FInventoryStack and pass it into this function, that my FInventoryStack will be operated on.
That is to say, instead of using the instance of UFGInventoryComponent's memory, I have created a new block of memory that will be written to.
So either the stack gets copied over to my memory, or only modifications made to out_stack during the function call are written to my memory.
I would think that would be exactly what we do not want.
I would expect to have a function that returns me a pointer to the stack, so that we can call operations on that stack.
Am I just not understanding how C++ works? Or maybe this is a weird case because I see an example later in the header file that I think might be what I'm after, but they are protected
and
My basic understanding is that when a reference is returned, unlike return by value which calls the copy-constructor, instead we pass back a reference to the memory.
Depending on how CSS returned that variable there might be some issues tho.
I really need to not copy memory all over the place. Hoping someone has some information.
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