(C++ specific)
Is a non-member function like I see sometimes listed in with a class reference list, any different that any function that comes into your project in (with) any needed include file for whatever reason(s) ?
I mean other than relevance to the class which is why I'm guessing it's listed with the class as a non-member function.
I'm having some trouble visualizing what you mean. Would you mind posting relevant source code?
A "class reference list" is just documentation. It could be incomplete, out of sync with the actual code, etc.Originally Posted by R_W_B
Basically, a non-member function could form part of a class' (extended) interface. It may be in the same namespace as the class, and may be declared in the same header. Whatever the case, you should include the appropriate header.
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Thanks that make it a bit clearer.
This is the only quick reference I found that's like some of what I've seen. These are non-member function overloads.
vector - C++ Reference
(scroll to bottom).
Yes, things like comparative operators such as in your example are nearly always implemented as non-member functions. And to answer your original question: not it's not any different – it's a "free floating" function that happens to come with that class' header. The function might be declared a friend of the class though.
Btw, I do recommend cppreference as your go-to site when looking up standard library classes. cplusplus.com appears a lot more accessible, no question, but it's riddled with misleading examples and the occasional mistake. If you can look past the overwhelming amount of information, the former will serve you much better!
