C++ code for Hospital Management system | Hospital Management system project code

source code# Include <iostream.h>
 # Include <conio.h># Include <string.h>
 # <stdlib.h>

 / / Define the maximum number of Patients in a queue# Define MAXPATIENTS 100/ / Define the data structure for patient

 struct patient
 {
 FirstName char [50];
 LastName char [50];
 char ID [20];
 };/ / Define class for the queue
 class queue
 {
 public:
 queue (void);
 int AddPatientAtEnd (patient P);
 int AddPatientAtBeginning (patient P);
 patient GetNextPatient (void);
 int RemoveDeadPatient (patient * p);
 OutputList void (void);
 DepartmentName char [50];
 private:
 NumberOfPatients int;
 List of patient [MAXPATIENTS];
 };/ / Declare member functions for queuequeue :: queue ()
 {
 / / Constructor
 NumberOfPatients = 0;
 }int queue :: AddPatientAtEnd (patient P)
 {
 / / Adds a normal patient to the end of the queue.
 / / Returns 1 if successful, 0 if the queue is full.
 if (NumberOfPatients> = MAXPATIENTS)
 {
 / / Queue is full
 return 0;
 }
 / / Put in new patient
 else
 List [NumberOfPatients] = p; NumberOfPatients + +;
 return 1;
 }int queue :: AddPatientAtBeginning (patient P)
 {
 / / Adds a critically ill patient to the beginning of the queue.
 / / Returns 1 if successful, 0 if the queue is full.
 int i;
 if (NumberOfPatients> = MAXPATIENTS)
 {
 / / Queue is full
 return 0;
 }/ / Move all Hasta one position back in the queue
 for (i = NumberOfPatients-1, i> = 0; i-)
 {
 List [i +1] = List [i];
 }
 / / Put in new patient
 List [0] = p; NumberOfPatients + +;
 return 1;
 }patient queue :: GetNextPatient (void)
 {
 / / Gets the patient that is first in the queue.
 / / Returns patient with no ID if the queue is emptyint i; patient p;
 if (NumberOfPatients == 0) {
 / / Queue is empty
 strcpy (p.ID, "");
 return p;}
 / / Get the first patient
 p = List [0];
 / / Move all remaining Hasta forward one position in the queue
 NumberOfPatients-;
 for (i = 0; i <NumberOfPatients; i + +)
 {
 List [i] = List [i +1];
 }
 / / Return patient
 return p;
 }int queue :: RemoveDeadPatient (patient * p)
 {
 / / Removes a patient from the queue.
 / / Returns 1 if successful, 0 if not found patient
 int i, j, found = 0;
 / / Search for patient
 for (i = 0; i <NumberOfPatients; i + +)
 {
 if (stricmp (List [i]. ID, p-> ID) == 0)
 {/ / Patient found in the queue
 * P = List [i]; found = 1;
 / / Move all following, Hasta forward one position in the queue
 NumberOfPatients-;
 for (j = i; j <NumberOfPatients; j + +)
 {
 List [j] = List [j +1];
 }
 }
 }
 return found;
 }void queue :: OutputList (void)
 {
 / / Queue entire lists on screen
 int i;
 if (NumberOfPatients == 0)
 {
 cout << "
 Queue is empty ";
 }
 else
 {for (i = 0; i <NumberOfPatients; i + +)
 {
 cout << "
 "<< List [i]. FirstName;
 cout << "" << List [i]. LastName;
 cout << "" << List [i]. ID;
 }
 }
 }/ / Declare functions used by main:patient InputPatient (void)
 {
 / / This function asks user for patient data.
 patient p;
 cout << "Please enter data for new patient
 First name: ";
 cin.getline (p.FirstName, sizeof (p.FirstName));
 cout << "
 Last name: ";
 cin.getline (p.LastName, sizeof (p.LastName));
 cout << "
 Social Security number: ";
 cin.getline (p.ID, sizeof (p.ID));
 / / Check if valid data
 if (p.FirstName [0] == 0 | | p.LastName [0] == 0 | | p.ID [0] == 0)
 {
 / / Rejected
 strcpy (p.ID, "");
 cout << "Error: Data not valid. Operation canceled. ";
 getch ();
 }
 return p;
 }void OutputPatient (patient * p)
 {
 / / This function outputs data to the screen patient
 if (p == NULL | | p-> ID [0] == 0)


 {
 cout << "
 No patient ";
 return;
 }
 else
 cout << "Patient data: ";
 cout << "First name: "<< p-> FirstName;
 cout << "Last name: "<< p-> LastName;
 cout << "Social Security number: "<< p-> ID;
 }ReadNumber int ()
 {
 / / This function reads an integer number from the keyboard.
 / / Because it is used with cin >> input does not work properly!
 char buffer [20];
 cin.getline (buffer, sizeof (buffer));
 return atoi (buffer);
 }void DepartmentMenu (queue * q)
 {
 / / This function defines the user interface with menu for one
 department
 int choice = 0, success, patient p;
 while (choice! = 6)
 {
 / / Clear screen
 clrscr ();
 / / Print the menu
 cout << "Welcome to the department: "<< q-> DepartmentName;
 cout << "Please enter your choice: ";
 cout << "
1: Add a normal patient ";

cout << "
 2: Add critically ill patient ";
 cout << "
 3: Take out-patient for operation ";
 cout << "
 4: Remove dead patient from queue ";
 cout << "
 5: List the queue ";
 cout << "
 6: Change department or exit
 ";
 / / Get user choice
 choice = ReadNumber ();
 / / Do action indicated
 switch (choice)
 {
 case 1: / / Add the normal patient
 p = InputPatient ();
 if (p.ID [0])
 {
 success = q-> AddPatientAtEnd (p);
 clrscr ();
 if (success)
 {
 cout << "
 Patient added:";}
 else
 {
 / / Error
 cout << "Error: The queue is full. Can not add patient: ";
 }
 OutputPatient (& p);
 cout << "Press any key ";
 getch ();
 }
 break;case 2: / / Add critically ill patient
 p = InputPatient ();
 if (p.ID [0])
 {
 success = q-> AddPatientAtBeginning (p);
 clrscr ();
 if (success)
 {
 cout << "
 Patient added:";
 }
 else
 {/ / Error
 cout << "Error: The queue is full. Can not add
 patient ";
 }OutputPatient (& p);
 cout << "Press any key ";
 getch ();
 }
 break;case 3: / / Take out patient for operation
 p = q-> GetNextPatient ();
 clrscr ();
 if (p.ID [0])
 {
 cout << "
 Patient to operate:";
 OutputPatient (& p);}
 else
 {
 cout << "
 There is no patient to operate. ";
 }
 cout << "Press any key ";
 getch ();
 break;case 4: / / Remove dead patient from the queue
 p = InputPatient ();
 if (p.ID [0])
 {
 success = q-> RemoveDeadPatient (& p);
 clrscr ();
 if (success)
 {
 cout << "
 Patient removed:";
 }
 else
 {
 / / Error
 cout << "Error: Can not find patient:";
 }
 OutputPatient (& p);
 cout << "
  Press any key ";getch ();
 }
 break;case 5: / / List queue
 clrscr ();
 q-> OutputList ();
 cout << "Press any key ";
 getch (); break;
 }
 }
 }/ / Main function defining queues and main menu
 void main ()
 {
 int i, MenuChoice = 0;
 / / Define three queues
 Departments queue [3];
 / / Set the department names
 strcpy (Departments [0]. DepartmentName, "Heart Clinic");
 strcpy (Departments [1]. DepartmentName, "Lung Clinic");
 strcpy (Departments [2]. DepartmentName, "Plastic surgery");while (MenuChoice! = 4)
 {
 / / Clear screen
 clrscr ();
 / / Print the menu
 cout << "Welcome to Software City Hospital ";
 cout << "Please enter your choice:
 ";
 for (i = 0, i <3; i + +)
 {
 / / Write menu item for department i
 cout << "
 "<< (I +1) <<": "<< Departments [i]. DepartmentName;
 }
 cout << "
 4: Exit
 ";
 / / Get user choice
 MenuChoice = ReadNumber ();
 / / Is it a department name?
 if (MenuChoice> = 1 && MenuChoice <= 3)
 {
 / / Now for the department submenu
 / / (Using pointer Arithmetics here :)
 DepartmentMenu (Departments + (MenuChoice-1));
 }
 }
 }

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