PracticeDev/study_cpp/cpp_primer_source_code/Chapter 14/worker0.h

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2022-12-20 17:31:11 +08:00
// worker0.h -- working classes
#ifndef WORKER0_H_
#define WORKER0_H_
#include <string>
class Worker // an abstract base class
{
private:
std::string fullname;
long id;
public:
Worker() : fullname("no one"), id(0L) {}
Worker(const std::string & s, long n)
: fullname(s), id(n) {}
virtual ~Worker() = 0; // pure virtual destructor
virtual void Set();
virtual void Show() const;
};
class Waiter : public Worker
{
private:
int panache;
public:
Waiter() : Worker(), panache(0) {}
Waiter(const std::string & s, long n, int p = 0)
: Worker(s, n), panache(p) {}
Waiter(const Worker & wk, int p = 0)
: Worker(wk), panache(p) {}
void Set();
void Show() const;
};
class Singer : public Worker
{
protected:
enum {other, alto, contralto, soprano,
bass, baritone, tenor};
enum {Vtypes = 7};
private:
static char *pv[Vtypes]; // string equivs of voice types
int voice;
public:
Singer() : Worker(), voice(other) {}
Singer(const std::string & s, long n, int v = other)
: Worker(s, n), voice(v) {}
Singer(const Worker & wk, int v = other)
: Worker(wk), voice(v) {}
void Set();
void Show() const;
};
#endif