What's the difference between overload and override

Overload means same function name defined in the class, but with different parameters. It's just about the polymophysm.

void func( int );
void func( double );
void fund( unsigned int );

Override means same function name with the same arguments, but defined in the parent and child class. It always used for inheritence.

class A
{
public:

void func( int );
};

class B : public A
{
public:

void func( int );
};