Seperate into diffrent Files

ActualMain.cpp

@@ -0,0 +1,10 @@
+#include <stdio.h>
+#include "Aufg1/forLoop.h"
+#include "Aufg2/GuestList.h"
+#include "Aufg3/Phonebook.h"
+
+int main() {
+    // Aufg1Main();
+    // Aufg2Main();
+    Aufg3Main();
+}

Aufg1/forLoop.cpp

@@ -0,0 +1,29 @@
+#include <cstdio>
+#include "forLoop.h"
+
+/*
+Ouput der Zahlen 10 bis 0 an die Konsole
+Ouput aller Buchstaben des Alphabets
+*/
+
+void counter() {
+    for (int i = 10; i > 0; i--)
+    {
+        printf("%d\n", i);
+    }
+}
+
+void alphabet() {
+    char alpha[27] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+    for (char letter : alpha)
+    {
+        printf("%c ", letter);
+    }
+}
+
+void Aufg1Main()
+{
+    counter();
+    alphabet();
+}

Aufg1/forLoop.h

@@ -0,0 +1,10 @@
+#ifndef Aufg1FORLOOP_H
+#define Aufg1FORLOOP_H
+
+void counter();
+
+void alphabet();
+
+void Aufg1Main();
+
+#endif //Aufg1FORLOOP_H

Aufg2/GuestList.cpp

@@ -0,0 +1,61 @@
+#include "GuestList.h"
+
+#include <iostream>
+#include <vector>
+
+/*
+ * GästeListe
+ *
+ * Konsoleninput zur Wahl Liste verlängern/ausgeben/Ende
+ */
+
+
+void showMenu() {
+    std::cout << "1 to add Guest"
+        << std::endl
+        << "2 to print all Guests"
+        << std::endl
+        << "0 to exit"
+        << std::endl;
+}
+
+void getInput(int &input) {
+
+    std::cin >> input;
+}
+
+void printAllInVector(std::vector<std::string> &Myvector) {
+    for (std::string name : Myvector)
+    {
+        std::cout << name
+            << std::endl;
+    }
+}
+
+void Aufg2Main()
+{
+    std::vector<std::string> guestList;
+
+    while (true) {
+        showMenu();
+
+        int input;
+        getInput(input);
+
+        std::string name;
+
+        switch (input)
+        {
+            case 0:
+                return;
+            case 1:
+                std::cin >> name;
+            guestList.push_back(name);
+            break;
+            case 2:
+                printAllInVector(guestList);
+            default:
+                break;
+        }
+    }
+}

Aufg2/GuestList.h

@@ -0,0 +1,22 @@
+#ifndef Aufg2GUESTLIST_H
+#define Aufg2GUESTLIST_H
+
+#include <string>
+#include <vector>
+/*
+ * GästeListe
+ *
+ * Konsoleninput zur Wahl Liste verlängern/ausgeben/Ende
+ */
+
+
+void showMenu();
+
+void getInput(int &input);
+
+void printAllInVector(std::vector<std::string> &Myvector);
+
+void Aufg2Main();
+
+
+#endif //GUESTLIST_H

Aufg3/Phonebook.cpp

@@ -0,0 +1,198 @@
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <vector>
+
+typedef struct contacts{
+	std::string firstName;
+	std::string lastName;
+	int number;
+} Kontaktdaten;
+
+
+void addContact(Kontaktdaten* person, std::vector<Kontaktdaten*> *Telefonbuch) {
+	Telefonbuch->push_back(person);
+	// std::vector<Kontaktdaten *> buch = *Telefonbuch;
+	// buch.push_back(person);
+}
+
+void deleteAllContacts(std::vector<Kontaktdaten*> *Telefonbuch) {
+	for (Kontaktdaten* pointer: *Telefonbuch) {
+		delete pointer;
+	}
+}
+
+void printAllContacts(std::vector<Kontaktdaten*> *Telefonbuch) {
+	for (Kontaktdaten * personpointer: *Telefonbuch) {
+		Kontaktdaten person = *personpointer;
+		std::cout << person.firstName << " " << person.lastName << " " << person.number << std::endl;
+	}
+}
+
+void saveAllContacts(std::vector<Kontaktdaten*> *Telefonbuch, std::string *fileName) {
+	std::ofstream outfile;
+	outfile.open(*fileName);
+
+	for (Kontaktdaten * personpointer: *Telefonbuch) {
+		Kontaktdaten person = *personpointer;
+		outfile << person.firstName << std::endl << person.lastName << std::endl << person.number << std::endl;
+	}
+
+	outfile.close();
+}
+
+int exponentiate(int base, int exponent) {
+	int result = 1;
+	while (exponent > 0) {
+		result *= base;
+		exponent--;
+	}
+	return result;
+}
+
+int intStringToInt(std::string input) {
+	int result = 0;
+
+	int size = input.length();
+	for(int i = 0; i < size; i++) {
+		int digit = input[size - 1 - i] - '0'; // -1 to consider 0-index	// -'0' to get ascii indicies right
+		result += digit * exponentiate(10, i); // shift digit
+	}
+
+	return result;
+}
+
+void readContactsFromFile(std::vector<Kontaktdaten*> *Telefonbuch, std::string *fileName) {
+	std::ifstream infile;
+	infile.open(*fileName);
+
+	if (!infile.is_open()) {
+		std::cout << "File does not exist" << std::endl;
+	}
+
+	std::string line;
+	int counter = 0;
+	Kontaktdaten * personpointer = new Kontaktdaten;
+	while (std::getline(infile, line)) {
+
+		int attribute = counter % 3;
+		counter++;
+
+		switch (attribute) {
+			case 0:
+				personpointer->firstName = line;
+				break;
+			case 1:
+				personpointer->lastName = line;
+				break;
+			case 2:
+				personpointer->number = intStringToInt(line);
+				addContact(personpointer, Telefonbuch);
+				personpointer = new Kontaktdaten;
+				break;
+			default:
+				std::cout << "This should never happen" << std::endl;
+		}
+	}
+
+	infile.close();
+}
+
+void addFirstSetOfContacts(std::vector<contacts*> * Telefonbuch) {
+	auto * Robin = new Kontaktdaten;
+	auto * Saxo = new Kontaktdaten;
+	auto * Jesus = new Kontaktdaten;
+
+	Robin->number = 123456;
+	Robin->firstName = "Robin";
+	Robin->lastName = "Schnaiter";
+
+	Saxo->number = 987654;
+	Saxo->firstName = "Saxobastian";
+	Saxo->lastName = "Brosch";
+
+	Jesus->number = 666;
+	Jesus->firstName = "Jesus";
+	Jesus->lastName = "Nazarett";
+
+	addContact(Robin, Telefonbuch);
+	addContact(Saxo, Telefonbuch);
+	addContact(Jesus, Telefonbuch);
+}
+
+void addSecondSetOfContacts(std::vector<contacts*> * Telefonbuch) {
+	auto * Bruno = new Kontaktdaten;
+	auto * Peter = new Kontaktdaten;
+	auto * Ralf = new Kontaktdaten;
+
+	Bruno->number = 462581;
+	Bruno->firstName = "Bruno";
+	Bruno->lastName = "Braunbär";
+
+	Peter->number = 110;
+	Peter->firstName = "Peter";
+	Peter->lastName = "Polizei";
+
+	Ralf->number = 9999;
+	Ralf->firstName = "Ralf";
+	Ralf->lastName = "Rotbart";
+
+	addContact(Bruno, Telefonbuch);
+	addContact(Peter, Telefonbuch);
+	addContact(Ralf, Telefonbuch);
+}
+/*
+Kontaktdaten * createContact(std::string firstName, std::string lastName, int number) {
+	Kontaktdaten person = new Kontaktdaten;
+
+	person.firstName = firstName;
+	person.lastName = lastName;
+	person.number = number;
+
+	return & person;
+}
+*/
+
+void Aufg3Main() {
+	std::string fileName = "../Aufg3/IO-Files/phonebook.thorsten";
+	std::vector<Kontaktdaten*> Telefonbuch;
+
+	for (int i=0; i<1; i++) {
+		readContactsFromFile(&Telefonbuch, &fileName);
+		std::cout << "Done with reading " << i << std::endl;
+	}
+
+	/*
+	*Robin->number = 123456;
+	Robin->firstName = "Robin der Neue";
+	Robin->lastName = "Schnaiter";
+
+	Saxo->number = 987654;
+	Saxo->firstName = "Saxobastian";
+	Saxo->lastName = "Broschianer";
+
+	Jesus->number = 6666666;
+	Jesus->firstName = "Jesus";
+	Jesus->lastName = "Nazarett";
+	*/
+
+	// addFirstSetOfContacts(&Telefonbuch);
+	addSecondSetOfContacts(&Telefonbuch);
+
+	// printAllContacts(&Telefonbuch);
+	saveAllContacts(&Telefonbuch, &fileName);
+	deleteAllContacts(&Telefonbuch);
+
+	/*
+	 *	 IDE beschwert sich bei Erstellen von * Robin über leaked Memory
+	 *	 deleteAllContacts() sollte den Speicher befreien
+	 *
+	 *	 Zugriff auf *Robin nach delete Statement führt zu Fehler?
+	 *	 -> IDE ist zu dumm?
+	 */
+
+	//
+	// std::cout << Robin << std::endl;
+	// auto test = *Robin;
+	// std::cout << test.firstName << std::endl;
+	}

Aufg3/Phonebook.h

@@ -0,0 +1,40 @@
+#ifndef PHONEBOOK_H
+#define PHONEBOOK_H
+#include <string>
+#include <vector>
+
+typedef struct contacts Kontaktdaten;
+
+void addContact(Kontaktdaten* person, std::vector<Kontaktdaten*> *Telefonbuch);
+
+void deleteAllContacts(std::vector<Kontaktdaten*> *Telefonbuch);
+
+void printAllContacts(std::vector<Kontaktdaten*> *Telefonbuch);
+
+void saveAllContacts(std::vector<Kontaktdaten*> *Telefonbuch, std::string *fileName);
+
+int exponentiate(int base, int exponent);
+
+int intStringToInt(std::string input);
+
+void readContactsFromFile(std::vector<Kontaktdaten*> *Telefonbuch, std::string *fileName);
+
+void addFirstSetOfContacts(std::vector<contacts*> * Telefonbuch);
+
+void addSecondSetOfContacts(std::vector<contacts*> * Telefonbuch);
+/*
+Kontaktdaten * createContact(std::string firstName, std::string lastName, int number) {
+	Kontaktdaten person = new Kontaktdaten;
+
+	person.firstName = firstName;
+	person.lastName = lastName;
+	person.number = number;
+
+	return & person;
+}
+*/
+
+void Aufg3Main();
+
+
+#endif //PHONEBOOK_H