Pointers to static member functions
suggest changeA static
member function is just like an ordinary C/C++ function, except with scope:
- It is inside a
class
, so it needs its name decorated with the class name; - It has accessibility, with
public
,protected
orprivate
.
So, if you have access to the static
member function and decorate it correctly, then you can point to the function like any normal function outside a class
:
typedef int Fn(int); // Fn is a type-of function that accepts an int and returns an int
// Note that MyFn() is of type 'Fn'
int MyFn(int i) { return 2*i; }
class Class {
public:
// Note that Static() is of type 'Fn'
static int Static(int i) { return 3*i; }
}; // Class
int main() {
Fn *fn; // fn is a pointer to a type-of Fn
fn = &MyFn; // Point to one function
fn(3); // Call it
fn = &Class::Static; // Point to the other function
fn(4); // Call it
} // main()
Found a mistake? Have a question or improvement idea?
Let me know.
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