41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
#include <iostream>
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using namespace std;
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class Employee {
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public:
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virtual void raiseSalary() { cout << 0 << endl; }
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virtual void promote() { /* common promote code */
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}
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};
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class Manager : public Employee {
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virtual void raiseSalary() { cout << 100 << endl; }
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virtual void promote() { /* Manager specific promote */
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}
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};
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class Engineer : public Employee {
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virtual void raiseSalary() { cout << 200 << endl; }
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virtual void promote() { /* Manager specific promote */
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}
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};
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// Similarly, there may be other types of employees
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// We need a very simple function to increment salary of all employees
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// Note that emp[] is an array of pointers and actual pointed objects can
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// be any type of employees. This function should ideally be in a class
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// like Organization, we have made it global to keep things simple
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void globalRaiseSalary(Employee *emp[], int n) {
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for (int i = 0; i < n; i++)
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emp[i]->raiseSalary(); // Polymorphic Call: Calls raiseSalary()
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// according to the actual object, not
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// according to the type of pointer
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}
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int main() {
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Employee *emp[] = {new Manager(), new Engineer};
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globalRaiseSalary(emp, 2);
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return 0;
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}
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