Represents a simple class in C++ for storing values of any type.

main.cpp

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

int main(int argc, char * argv[])
{
    Variant v;
    v.setValue(12);
    std::cout << v.getValue<int>() << std::endl;
    return 0;
}

Makefile

all: variant

variant.o: variant.cpp variant.h value.h
	g++ -c variant.cpp

main.o: main.cpp variant.h value.h
	g++ -c main.cpp

variant: variant.o main.o
	g++ variant.o main.o -o variant

value.h

#ifndef VALUE_H
#define VALUE_H

class Value
{
};

#endif // VALUE_H

variant.cpp

#include "variant.h"

Variant::Variant()
{
}

Variant::~Variant()
{
}

variant.h

#ifndef VARIANT_H
#define VARIANT_H

#include "value.h"

class Variant
{
    public:
    
        Variant();
        ~Variant();
    
        template <typename T> T getValue() const
        {
        }

        template <typename T> void setValue(const T & value)
        {
        }
    
    private:
    
        //...
};

#endif // VARIANT_H