Operator Overloading - Inline atribute

[Roteao]

Hi there!

Im just getting started with operators overloading with classes.

I have seen some code where they use the sentence "inline" in the function and some others that don't.

What's is the main difference between this sintaxis?

Thanks!

[Enoizat]

Maybe it is long, but I think it is an awesome explanation:
https://isocpp.org/wiki/faq/inline-functions

[JLBorges]

> I have seen some code where they use the sentence "inline" in the function and some others that don't.
> What's is the main difference between this sintaxis?

If the friend function is defined entirely within the class, it is implicitly inline.

Otherwise, if the friend function is defined in a header file, it is typically declared as inline;
(there would be an identical definition of the function in each translation unit that includes the header).