C++

ok, so i am working with a 1D array, and I am saying, ok like array[listSize].

Ok, what is the difference between like array[--listSize] and array[listSize--]?  Do they both work? does one actually modify the value of listSize or do they both leave the value of listSize alone?

>[--Variable]
The value is decremented before accessing the array.
>[Variable--]
The value is decremented after accessing the array.

So to answer your question, they both modify it. It just whether they do it before or after.