Delete old Main
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Matti
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a071a17043
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315
Main.cpp
315
Main.cpp
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#include <fstream>
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#include <iostream>
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#include <vector>
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#pragma region Aufgabe1
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/*
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Ouput der Zahlen 10 bis 0 an die Konsole
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Ouput aller Buchstaben des Alphabets
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*/
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void counter() {
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for (int i = 10; i > 0; i--)
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{
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printf("%d\n", i);
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}
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}
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void alphabet() {
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char alpha[27] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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for (char letter : alpha)
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{
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printf("%c ", letter);
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}
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}
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void Aufg1Main()
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{
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counter();
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alphabet();
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}
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#pragma endregion
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#pragma region Aufgabe2
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/*
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* GästeListe
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*
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* Konsoleninput zur Wahl Liste verlängern/ausgeben/Ende
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*/
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void showMenu() {
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std::cout << "1 to add Guest"
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<< std::endl
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<< "2 to print all Guests"
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<< std::endl
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<< "0 to exit"
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<< std::endl;
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}
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void getInput(int &input) {
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std::cin >> input;
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}
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void printAllInVector(std::vector<std::string> &Myvector) {
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for (std::string name : Myvector)
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{
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std::cout << name
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<< std::endl;
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}
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}
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void Aufg2Main()
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{
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std::vector<std::string> guestList;
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while (true) {
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showMenu();
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int input;
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getInput(input);
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std::string name;
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switch (input)
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{
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case 0:
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return;
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case 1:
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std::cin >> name;
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guestList.push_back(name);
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break;
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case 2:
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printAllInVector(guestList);
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default:
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break;
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}
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}
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}
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#pragma endregion
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#pragma region Telefonbuch
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typedef struct contacts{
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std::string firstName;
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std::string lastName;
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int number;
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} Kontaktdaten;
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void addContact(Kontaktdaten* person, std::vector<Kontaktdaten*> *Telefonbuch) {
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Telefonbuch->push_back(person);
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// std::vector<Kontaktdaten *> buch = *Telefonbuch;
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// buch.push_back(person);
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}
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void deleteAllContacts(std::vector<Kontaktdaten*> *Telefonbuch) {
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for (Kontaktdaten* pointer: *Telefonbuch) {
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delete pointer;
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}
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}
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void printAllContacts(std::vector<Kontaktdaten*> *Telefonbuch) {
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for (Kontaktdaten * personpointer: *Telefonbuch) {
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Kontaktdaten person = *personpointer;
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std::cout << person.firstName << " " << person.lastName << " " << person.number << std::endl;
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}
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}
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void saveAllContacts(std::vector<Kontaktdaten*> *Telefonbuch, std::string *fileName) {
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std::ofstream outfile;
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outfile.open(*fileName);
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for (Kontaktdaten * personpointer: *Telefonbuch) {
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Kontaktdaten person = *personpointer;
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outfile << person.firstName << std::endl << person.lastName << std::endl << person.number << std::endl;
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}
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outfile.close();
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}
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int exponentiate(int base, int exponent) {
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int result = 1;
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while (exponent > 0) {
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result *= base;
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exponent--;
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}
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return result;
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}
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int intStringToInt(std::string input) {
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int result = 0;
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int size = input.length();
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for(int i = 0; i < size; i++) {
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int digit = input[size - 1 - i] - '0'; // -1 to consider 0-index // -'0' to get ascii indicies right
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result += digit * exponentiate(10, i); // shift digit
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}
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return result;
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}
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void readContactsFromFile(std::vector<Kontaktdaten*> *Telefonbuch, std::string *fileName) {
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std::ifstream infile;
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infile.open(*fileName);
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if (!infile.is_open()) {
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std::cout << "File does not exist" << std::endl;
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}
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std::string line;
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int counter = 0;
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Kontaktdaten * personpointer = new Kontaktdaten;
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while (std::getline(infile, line)) {
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int attribute = counter % 3;
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counter++;
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switch (attribute) {
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case 0:
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personpointer->firstName = line;
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break;
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case 1:
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personpointer->lastName = line;
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break;
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case 2:
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personpointer->number = intStringToInt(line);
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addContact(personpointer, Telefonbuch);
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personpointer = new Kontaktdaten;
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break;
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default:
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std::cout << "This should never happen" << std::endl;
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}
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}
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infile.close();
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}
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void addFirstSetOfContacts(std::vector<contacts*> * Telefonbuch) {
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auto * Robin = new Kontaktdaten;
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auto * Saxo = new Kontaktdaten;
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auto * Jesus = new Kontaktdaten;
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Robin->number = 123456;
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Robin->firstName = "Robin";
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Robin->lastName = "Schnaiter";
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Saxo->number = 987654;
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Saxo->firstName = "Saxobastian";
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Saxo->lastName = "Brosch";
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Jesus->number = 666;
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Jesus->firstName = "Jesus";
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Jesus->lastName = "Nazarett";
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addContact(Robin, Telefonbuch);
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addContact(Saxo, Telefonbuch);
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addContact(Jesus, Telefonbuch);
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}
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void addSecondSetOfContacts(std::vector<contacts*> * Telefonbuch) {
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auto * Bruno = new Kontaktdaten;
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auto * Peter = new Kontaktdaten;
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auto * Ralf = new Kontaktdaten;
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Bruno->number = 462581;
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Bruno->firstName = "Bruno";
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Bruno->lastName = "Braunbär";
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Peter->number = 110;
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Peter->firstName = "Peter";
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Peter->lastName = "Polizei";
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Ralf->number = 9999;
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Ralf->firstName = "Ralf";
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Ralf->lastName = "Rotbart";
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addContact(Bruno, Telefonbuch);
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addContact(Peter, Telefonbuch);
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addContact(Ralf, Telefonbuch);
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}
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/*
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Kontaktdaten * createContact(std::string firstName, std::string lastName, int number) {
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Kontaktdaten person = new Kontaktdaten;
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person.firstName = firstName;
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person.lastName = lastName;
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person.number = number;
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return & person;
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}
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*/
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void TelefonbuchMain() {
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std::string fileName = "../IO-Files/phonebook.thorsten";
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std::vector<Kontaktdaten*> Telefonbuch;
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for (int i=0; i<1; i++) {
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readContactsFromFile(&Telefonbuch, &fileName);
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std::cout << "Done with reading " << i << std::endl;
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}
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/*
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*Robin->number = 123456;
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Robin->firstName = "Robin der Neue";
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Robin->lastName = "Schnaiter";
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Saxo->number = 987654;
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Saxo->firstName = "Saxobastian";
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Saxo->lastName = "Broschianer";
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Jesus->number = 6666666;
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Jesus->firstName = "Jesus";
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Jesus->lastName = "Nazarett";
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*/
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// addFirstSetOfContacts(&Telefonbuch);
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addSecondSetOfContacts(&Telefonbuch);
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// printAllContacts(&Telefonbuch);
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saveAllContacts(&Telefonbuch, &fileName);
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deleteAllContacts(&Telefonbuch);
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/*
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* IDE beschwert sich bei Erstellen von * Robin über leaked Memory
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* deleteAllContacts() sollte den Speicher befreien
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*
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* Zugriff auf *Robin nach delete Statement führt zu Fehler?
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* -> IDE ist zu dumm?
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*/
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//
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// std::cout << Robin << std::endl;
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// auto test = *Robin;
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// std::cout << test.firstName << std::endl;
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}
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#pragma endregion
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// Telefonnummern sollen in Datei gespeichert werden
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// Beim Start vorhandene Einträge laden
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// Typen sortieren mit Counter und Modulo
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int main()
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{
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TelefonbuchMain();
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return 0;
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}
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// Programm ausführen: STRG+F5 oder Menüeintrag "Debuggen" > "Starten ohne Debuggen starten"
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// Programm debuggen: F5 oder "Debuggen" > Menü "Debuggen starten"
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// Tipps für den Einstieg:
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// 1. Verwenden Sie das Projektmappen-Explorer-Fenster zum Hinzufügen/Verwalten von Dateien.
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// 2. Verwenden Sie das Team Explorer-Fenster zum Herstellen einer Verbindung mit der Quellcodeverwaltung.
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// 3. Verwenden Sie das Ausgabefenster, um die Buildausgabe und andere Nachrichten anzuzeigen.
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// 4. Verwenden Sie das Fenster "Fehlerliste", um Fehler anzuzeigen.
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// 5. Wechseln Sie zu "Projekt" > "Neues Element hinzufügen", um neue Codedateien zu erstellen, bzw. zu "Projekt" > "Vorhandenes Element hinzufügen", um dem Projekt vorhandene Codedateien hinzuzufügen.
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// 6. Um dieses Projekt später erneut zu öffnen, wechseln Sie zu "Datei" > "Öffnen" > "Projekt", und wählen Sie die SLN-Datei aus.
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