Thread: Help me

Code:

Error: Reference not defined: classe1<int>::printsizeof()

file1.cpp

Code:

#include <iostream>
#include "classe.h"
    
int main()
{
    classe1 <int>c1;
    c1.printsizeof();
}

classe.h

Code:

template<class Type>
class classe1{
    public:
        void printsizeof();    
};

classe.cpp

Code:

#include "classe.h"
#include <iostream>


void classe1<Type>::printsizeof(){
    cout << sizeof(Type) << endl;
}

I don't know what I do.