ex15_05_Bulk_quote.h

/*
=================================================================================

C++ Primer 5th Exercise Answer Source Code
Copyright (C) 2014-2015 github.com/pezy/Cpp-Primer

Bulk_quote class

If you have questions, try to connect with me: pezy<urbancpz@gmail.com>

=================================================================================
*/

#ifndef CP5_EX15_05_BULK_QUOTE_H_
#define CP5_EX15_05_BULK_QUOTE_H_

#include "ex15_03_Quote.h"
#include <string>

namespace EX05 {
    using std::string;
    using namespace EX03;

class Bulk_quote : public Quote {
public:
    Bulk_quote() = default;
    Bulk_quote(string const& book, double p, size_t qty, double disc) : Quote(book, p), min_qty(qty), discount(disc) {}

    virtual double net_price(size_t cnt) const override {
        if (cnt >= min_qty) return cnt * (1 - discount) * price;
        else return cnt * price;
    }
protected:
    size_t min_qty = 0;
    double discount = 0.0;
};
}

#endif // CP5_EX15_05_BULK_QUOTE_H_