12 Classes [class]

12.2 Class members [class.mem]

12.2.3 Static members [class.static]

12.2.3.1 Static member functions [class.static.mfct]

[Note
:
The rules described in [class.mfct] apply to static member functions.
end note
]
[Note
:
A static member function does not have a this pointer.
end note
]
A static member function shall not be virtual.
There shall not be a static and a non-static member function with the same name and the same parameter types ([over.load]).
A static member function shall not be declared const, volatile, or const volatile.