queue class. : Your Queue « Data Types « C++ Tutorial

1. C++ Tutorial
2. Data Types
3. Your Queue

#include <iostream>  
  using namespace std;

  class queue {  
    int q[100];  
    int sloc, rloc;  
  public:  
    void init(void);  
    void qput(int i);  
    int qget(void);  
  };  
       
  void queue::init(void)  
  {  
    rloc = sloc = 0;  
  }  
       
  void queue::qput(int i)  
  {  
    if(sloc==100) {  
      cout << "queue is full";  
      return;  
    }  
    sloc++;  
    q[sloc] = i;  
  }  
       
  int queue::qget(void)  
  {  
    if(rloc == sloc) {  
      cout << "queue underflow";  
      return 0;  
    }  
    rloc++;  
    return q[rloc];  
  }  
       
  main(void)  
  {  
    queue a, b;
       
    a.init();  
    b.init();  
       
    a.qput(10);  
    b.qput(19);  
       
    a.qput(20);  
    b.qput(1);  
       
    cout << a.qget() << endl;  
    cout << a.qget() << endl;  
    cout << b.qget() << endl;  
    cout << b.qget() << endl;  
       
    return 0;  
  }