Simple_Hospital_Management_System.zip_hospital

//Project Program for Hospital Database Queue array. #include<iostream.h> #include<conio.h> #include<string.h> #include<stdlib.h> // define maximum number of patients in a queue #define MAXPATIENTS 100 // define structure for patient data struct patient { char FirstName[50]; char LastName[50]; char ID[20]; }; // define class for queue class queue { public: queue (void); int AddPatientAtEnd (patient p); int AddPatientAtBeginning (patient p); patient GetNextPatient (void); int RemoveDeadPatient (patient * p); void OutputList (void); char DepartmentName[50]; private: int NumberOfPatients; patient List[MAXPATIENTS]; }; // declare member functions for queue queue::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 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 queue is full. int i; if (NumberOfPatients >= MAXPATIENTS) { // queue is full return 0; } // move all patients one position back in 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 queue is empty int i; patient p; if (NumberOfPatients == 0) { // queue is empty strcpy(p.ID,""); return p;} // get first patient p = List[0]; // move all remaining patients one position forward in 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 queue. // returns 1 if successful, 0 if patient not found 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 queue *p = List[i]; found = 1; // move all following patients one position forward in queue NumberOfPatients--; for (j=i; j<NumberOfPatients; j++) { List[j] = List[j+1]; } } } return found; } void queue::OutputList (void) { // lists entire queue 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 data valid if (p.FirstName[0]==0 || p.LastName[0]==0 || p.ID[0]==0) { // rejected strcpy(p.ID,""); cout << " Error: Data not valid. Operation cancelled."; getch(); } return p; } void OutputPatient (patient * p) { // this function outputs patient data to the screen 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; } int ReadNumber() { // this function reads an integer number from the keyboard. // it is used because input with cin >> doesn't 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 menu cout << " Welcome to department: " << q->DepartmentName; cout << " Please enter your choice:"; cout << " 1: Add 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 queue"; cout << " 6: Change department or exit "; // get user choice choice = ReadNumber(); // do indicated action switch (choice) { case 1: // Add 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. Cannot 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. Cannot 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 queue p = InputPatient(); if (p.ID[0]) { success = q->RemoveDeadPatient(&p); clrscr(); if (success) { cout << " Patient removed: "; } else { // error cout << " Error: Cannot 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 queue departments[3]; // set 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 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)