dot notation vs pointer
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What is the difference between the dot (.) operator and -> in C++?
What's the difference between using dot notation and the pointer way?
Instantiating an object with or without a pointer.
Instantiate w/oa pointer = then use dot notation
Instantiate w/ a pointer = then use ->
What are the differences between both? When and why should one be used over the other?
If I understand your question: in C++, a->b is just shorthand for (*a).b -- they're exactly the same (Edit: unless you've overloaded them to behave differently!), it's just that the first is easier to type. :)
If you're referring to using string a; versus string* a = new string() , that's a different topic -- look up stack-based and heap-based allocation.
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