Multiple Definition Error

[aboutjeab]

Hi,

I am trying to make use of some inherited class & function (e.g. class X, function abc()) from other parent classes (e.g. class A,B), unfortunately, I have got 'multiple definition' error whlie compiling.

//AAA.h
class A {
public :
virtual void abc();
}
 
class X : public A {
public :
void abc();
}
 
//AAA.cc
void X::abc() {
}
 

//BBB.h
class B {
public :
virtual void abc();
}
 
class X : public B {
public :
void abc();
}
 
//BBB.cc
void X::abc() {
}
 
 

how can I refer to the parent classes A,B while calling the abc() function?

Thank you for any clue..
J

[weaknessforcats]

You have two class X. One derives from A and one derives from B.

Class names must be unique.

Also, your class declarations are missing the final semicolon.