#ifndef _CASH_H
#define _CASH_H

// Represents an amount of money held by an investor.
class Cash {
    private:
        double m_amount;   // amount of money held
    
    public:
        Cash(double amount);
        
        double cost() const;
        double marketValue() const;
        double profit() const;
        void   setAmount(double amount);
};

#endif