Hi,

I have two classes: class A and class B. class B inherits from A and both have a public function named func(). func() in class A takes an int as parameter, and class B takes a double.

After creating an instance of class B, I wish to call func(int) using the class B object. But how can I do this? When calling B objB.func(int i=40)

the in parameter is automatically casted to a double and func(double) in class B is run.

Can someone explain this "unexpected" behaviour? I have no compiler warnings/errors.

Here is my code:


include <stdio.h>

//! class A with int as parameter to its func()
class A
{
public:
void func(int param){printf("A::func(int)\n");};
};


//! class B with double as parameter to its func()
class B : public A
{
public:
void func(double param){printf("B::func(double)\n");};
};



//! Test app
int main(void)
{
double dNum = 3.14;
int iNum = 1;

A objA;
B objB;

objA.func(iNum);
objB.func(dNum);
objB.func(iNum); //parameter is automatically casted to double!

return 0;
}


// PROGRAM OUTPUT:
//
// A::func(int)
// B::func(double)
// B::func(double)





Kjetil