1) static member functions do not have this pointer.
For example following program fails in compilation with error “`this’ is unavailable for static member functions “

CPP

#include<iostream>
class Test {
static Test * fun() {
return this; // compiler error
}
};

int main()
{
getchar();
return 0;
}
2) A static member function cannot be virtual (See this G-Fact)
3) Member function declarations with the same name and the name parameter-type-list cannot be overloaded if any of them is a static member function declaration.
For example, following program fails in compilation with error “‘void Test::fun()’ and `static void Test::fun()’ cannot be overloaded “

CPP

#include<iostream>
class Test {
static void fun() {}
void fun() {} // compiler error
};

int main()
{
getchar();
return 0;
}
4) A static member function can not be declared const, volatile, or const volatile.
For example, following program fails in compilation with error “static member function `static void Test::fun()’ cannot have `const’ method qualifier ”

CPP

#include<iostream>
class Test {
static void fun() const { // compiler error
return;
}
};

int main()
{
getchar();
return 0;
}