84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
// workermi.h -- working classes with MI
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#ifndef WORKERMI_H_
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#define WORKERMI_H_
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#include <string>
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class Worker // an abstract base class
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{
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private:
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std::string fullname;
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long id;
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protected:
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virtual void Data() const;
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virtual void Get();
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public:
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Worker() : fullname("no one"), id(0L) {}
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Worker(const std::string & s, long n)
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: fullname(s), id(n) {}
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virtual ~Worker() = 0; // pure virtual function
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virtual void Set() = 0;
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virtual void Show() const = 0;
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};
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class Waiter : virtual public Worker
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{
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private:
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int panache;
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protected:
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void Data() const;
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void Get();
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public:
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Waiter() : Worker(), panache(0) {}
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Waiter(const std::string & s, long n, int p = 0)
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: Worker(s, n), panache(p) {}
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Waiter(const Worker & wk, int p = 0)
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: Worker(wk), panache(p) {}
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void Set();
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void Show() const;
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};
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class Singer : virtual public Worker
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{
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protected:
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enum {other, alto, contralto, soprano,
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bass, baritone, tenor};
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enum {Vtypes = 7};
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void Data() const;
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void Get();
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private:
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static char *pv[Vtypes]; // string equivs of voice types
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int voice;
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public:
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Singer() : Worker(), voice(other) {}
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Singer(const std::string & s, long n, int v = other)
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: Worker(s, n), voice(v) {}
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Singer(const Worker & wk, int v = other)
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: Worker(wk), voice(v) {}
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void Set();
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void Show() const;
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};
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// multiple inheritance
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class SingingWaiter : public Singer, public Waiter
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{
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protected:
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void Data() const;
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void Get();
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public:
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SingingWaiter() {}
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SingingWaiter(const std::string & s, long n, int p = 0,
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int v = other)
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: Worker(s,n), Waiter(s, n, p), Singer(s, n, v) {}
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SingingWaiter(const Worker & wk, int p = 0, int v = other)
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: Worker(wk), Waiter(wk,p), Singer(wk,v) {}
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SingingWaiter(const Waiter & wt, int v = other)
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: Worker(wt),Waiter(wt), Singer(wt,v) {}
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SingingWaiter(const Singer & wt, int p = 0)
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: Worker(wt),Waiter(wt,p), Singer(wt) {}
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void Set();
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void Show() const;
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};
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#endif
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