pointers to member functions - can they point to operators ?

[Stephen Howe]

Hi

Is is possible to set a pointers to member function to point to an operator - implemented as a class member obviously. I suppose this hinges on whether the address operator can be applied to a class member operator.

It is unusual, I have not seen it done but that does not mean it is impossible.

Thanks

Stephen Howe

 

[W Karas]

Hi



Is is possible to set a pointers to member function to point to an operator - implemented as a class member obviously. I suppose this hinges on whether the address operator can be applied to a class member operator.



It is unusual, I have not seen it done but that does not mean it is impossible.



Thanks



Stephen Howe

g++ compiles this code:


class A { };

A operator + (A a1, A a2);

typedef A (*Fr)(A, A);
Fr foo(void) { return(operator +); }

 

[Richard Damon]

Hi

Is is possible to set a pointers to member function to point to an operator - implemented as a class member obviously. I suppose this hinges on whether the address operator can be applied to a class member operator.

It is unusual, I have not seen it done but that does not mean it is impossible.

Thanks

Stephen Howe

The member functions like class:perator+(class) are just like any
other member functions, they just have the syntactic sugar method of
calling them. You can take their address or call them with explicit call
syntax.

 

[Öö Tiib]

Hi

Is is possible to set a pointers to member function to point to an operator - implemented as a class member obviously. I suppose this hinges on whether the address operator can be applied to a class member operator.
Certainly.

It is unusual, I have not seen it done but that does not mean it is impossible.

Operators are meant to achieve most convenient syntax.
Syntax of pointers-to-member-functions on the other hand is most ugly.
It is rare case that does such sugar -> ugly switch and wins something.