Consider removing inline keyword for member function

[Paraworker]

The meaning of the inline keyword has changed for a long time, and whether a function is inlined or not is entirely determined by the compiler.

[ehopperdietzel]

Yep, thank you, I'm not sure if that applies to all compilers and settings, so I'll conduct some benchmarks before making a decision.

[Paraworker]

Sorry for my delayed response. According to the cppreference:

A function defined entirely inside a class/struct/union definition, whether it's a member function or a non-member friend function, is implicitly an inline function unless it is attached to a named module(since C++20).

So we don't need to mark it explicitly anyway.

[ehopperdietzel]

Okay, I'll remove it.