# main

#include <iostream>
#include "CFoo.h"
#include "CFoo.cpp"

int main()
{
    CFoo<int> ciFoo(1);
    CFoo<bool> cbFoo(true);

    ciFoo.Hello();
    cbFoo.Hello();

    return 0;
}

# CFoo.h
#ifndef TEMPLATES_CFOO_H
#define TEMPLATES_CFOO_H

#include <iostream>

using namespace std;


template<typename T>
class CFoo
{

public:
    CFoo(T val);

    void Hello();

protected:
    T _val;
};



#endif //TEMPLATES_CFOO_H


# CFoo.cpp
#include "CFoo.h"

template<typename T>
CFoo<T>::CFoo(T val)
{
    _val = val;
}


template<>
void CFoo<bool>::Hello()
{
    cout << "BOOl" << this->_val;
}

template<>
void CFoo<int>::Hello()
{
    cout << "INT" << this->_val;
}