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ass2.cpp
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ass2.cpp
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/***********************************************************************************
* CSCI251/851 - Assignment 2
* ass2.cpp - Contains function definitions for phone database program
* Put you name, login and the date last modified here.
*
***********************************************************************************/
#include <iostream>
#include <iomanip>
#include <fstream>
#include <cstdlib>
#include <cstring>
using namespace std;
// ============== Constants ==========================================
const char cDataFileName[] = "phone.txt";
const int cMaxRecs = 250; // Max records in database
const int cMaxNChars = 20; // Max chars in name
const int cMaxLChars = 30; // Max chars in location
const int cMaxPChars = 8; // Max chars in phone no
// ============= User Defined types ==================================
struct PhoneRecord {
char PhoneNo[cMaxPChars + 1];
char FamilyName[cMaxNChars + 1];
char GivenName[cMaxNChars + 1];
int StreetNo;
char StreetName[cMaxLChars + 1];
char Suburb[cMaxLChars + 1];
int PostCode;
};
// ============= Global Data =========================================
PhoneRecord *gRecs[cMaxRecs];
int gNumRecs = 0;
// ============= Private Function Prototypes =========================
void DisplayRecord(int i); // Displays record i on screen
// ============= Public Function Definitions =========================
void ReadFile()
{//Load Phone records from text datafile into array
ifstream fin;
fin.open("phone.txt");
if (!fin.good())
{
cerr << "Could not open data file!\n";
exit(1);
}
gNumRecs = 0;
int i;
for (i = 0; i < cMaxRecs; i++)
{
gRecs[i] = new PhoneRecord;
fin >> gRecs[i]->PhoneNo;
if (fin.fail()) break; // then eof
fin >> gRecs[i]->FamilyName;
fin >> gRecs[i]->GivenName;
fin >> gRecs[i]->StreetNo;
fin.ignore();
fin.getline(gRecs[i]->StreetName, cMaxLChars + 1);
fin.getline(gRecs[i]->Suburb, cMaxLChars + 1);
fin >> gRecs[i]->PostCode;
}
gNumRecs = i;
fin.close();
cout << "\nThere are " << gNumRecs << " records in the Phone database\n";
}
void SaveFile(int index) {
ofstream File;
File.open("phone.txt", ios::app);
File << gRecs[index]->PhoneNo << endl;
File.write((char*)gRecs[index]->FamilyName, strlen(gRecs[index]->FamilyName));
File << endl;
File.write((char*)gRecs[index]->GivenName, strlen(gRecs[index]->GivenName));
File << endl;
File << gRecs[index]->StreetNo << endl;
File.write((char*)gRecs[index]->StreetName, strlen(gRecs[index]->StreetName));
File << endl;
File.write((char*)gRecs[index]->Suburb, strlen(gRecs[index]->Suburb));
File << endl;
File << gRecs[index]->PostCode << endl;
cout << endl << "record saved to file" << endl;
}
void DisplayRecords()
{// Displays records one at a time
for (int i = 0; i < gNumRecs / 5; i++) {
for (int j = 0; j <= 4; j++) {
DisplayRecord((i * 5) + j);
}
cout << "Display more records (y/n)> ";
char Ans;
cin >> Ans;
cout << endl;
if (Ans == 'n') return;
}
}
void AddRecord()
{// Adds a new record to the database array
cout << "Adding a new Record to Database... " << endl;
gRecs[gNumRecs] = new (nothrow) PhoneRecord{};
if (gNumRecs < cMaxRecs) {
char _temp[cMaxLChars + 1];
while (1) {
cout << "Please enter a Phone Number: ";
cin >> _temp; //Input of PhoneNum
if (strlen(_temp)== cMaxPChars){ //Compare input to cMaxPChars
memcpy(gRecs[gNumRecs]->PhoneNo, &_temp, cMaxPChars + 1); //Copy check temp to pointer
break;
}else {
cout << "Please input a correct contact Number" << endl;
}
}
while (1) {
cout << "Please enter a Family Name: ";
cin >> _temp; //Input of FamilyName
if (strlen(_temp) <= cMaxNChars) { //Compare input to cMaxNChars
_temp[0] = toupper(_temp[0]); //Uppercase first Character
memcpy(gRecs[gNumRecs]->FamilyName, &_temp, cMaxNChars + 1); //Copy check temp to pointer
break;
}
else {
cout << "Please input a correct Family name" << endl;
}
}
while (1) {
cout << "Please enter a Given Name: ";
cin >> _temp; //Input of Given name
if (strlen(_temp) <= cMaxNChars) { //Compare input to cMaxNChars
_temp[0] = toupper(_temp[0]); //Uppercase first Character
memcpy(gRecs[gNumRecs]->GivenName, &_temp, cMaxNChars + 1); //Copy check temp to pointer
break;
}
else {
cout << "Please input a correct Given name" << endl;
}
}
while (1) {
cout << "Please enter a Street Num: ";
cin >> _temp; //Input of Street Num
if (atoi(_temp)>=1) { //why not just unsigned
gRecs[gNumRecs]->StreetNo = atoi(_temp);
break;
}
else {
cout << "Please input a correct Street number" << endl;
}
}
while (1) {
cout << "Please enter a Street Name: ";
cin.ignore();
cin.getline(_temp, cMaxLChars); //Input of Street Name
if (strlen(_temp) <= cMaxNChars) { //Compare input to cMaxLChars
memcpy(gRecs[gNumRecs]->StreetName, &_temp, cMaxLChars + 1); //Copy check temp to pointer
break;
}
else {
cout << "Please input a correct Street number" << endl;
}
}
while (1) {
cout << "Please enter a Suburb: ";
cin.getline(_temp, cMaxLChars); //Input of Suburb
if (strlen(_temp) <= cMaxLChars) { //Compare input to cMaxLChars
memcpy(gRecs[gNumRecs]->Suburb, &_temp, cMaxLChars + 1); //Copy check temp to pointer
break;
}
else {
cout << "Please input a correct Suburb" << endl;
}
}
while (1) {
cout << "Please enter a Postcode: ";
cin >> _temp; //Input of Postcode
if (strlen(_temp) == 4) { //Compare input to cMaxLChars
gRecs[gNumRecs]->PostCode = atoi(_temp);
break;
}
else {
cout << "Please input a correct Postcode" << endl;
}
}
gNumRecs++;
cout << "A new record has been added to the database " << endl;
cout << "...there are "<<gNumRecs<<" records in the database " << endl;
SaveFile(gNumRecs - 1);
}else {
cout << "Error: DB Full!";
}
}
void SearchRecords()
{// Searches database array for phone number
cout<<"Enter phone number:";
int index;
cin >> index;
for (int i = 0; i <= gNumRecs; i++) {
if (atoi(gRecs[i]->PhoneNo) == index) {
DisplayRecord(i);
return;
}
}
cout << "Record not found!" << endl;
}
void CleanUp()
{// Deletes all dynamic data in gRecs array
delete *gRecs;
cout<<"\n\t*** Thanks for using the Phone DB ***\n";
}
// ============= Private Functions Definitions =========================
void DisplayRecord(int i)
{// Displays record i on screen
cout << gRecs[i]->PhoneNo << "\t";
cout << gRecs[i]->GivenName << " ";
cout << gRecs[i]->FamilyName << ", ";
cout << gRecs[i]->StreetNo << " ";
cout << gRecs[i]->StreetName << ", ";
cout << gRecs[i]->Suburb << ", ";
cout << gRecs[i]->PostCode;
cout << endl;
}