completet chapter 5

.vscode/settings.json

@@ -1,5 +1,6 @@
 {
     "files.associations": {
-        "iterator": "cpp"
+        "iterator": "cpp",
+        "iostream": "cpp"
     }
 }

Freestyle/ret_multiple_types.cpp

@@ -19,7 +19,7 @@ int* ret_array2(){
 int main(){
 
     int new_array[10];
-    ret_array(new_array,10); //Array is already a pointer, pointing to the first element;
+    ret_array(new_array,10); // But handled as a normal pointer we loose the array size
     for(int i:new_array)
         cout <<"Number "<<i<<endl;
 

Teil_1/5. Felder/Uebung 2 - Fahrenheit in Celsius.cpp

@@ -0,0 +1,41 @@
+#include <iostream>
+
+using namespace std;
+const int kEauationVal = 32;
+
+template <class T>
+void getVal(const char text[], T *val);
+
+int main()
+{
+    float fahrenheit = 0, schritt_weite = 0, maximal_wert = 0;
+    float celsiusBuf[10];
+    cout << "Eingabe\n\n";
+    getVal("Fahrenheit", &fahrenheit);
+    cout << "\nAusgabe\n\n";
+
+    for (int i = 0; i <10; i++)
+    {
+        celsiusBuf[i] = ((fahrenheit+i*10 - kEauationVal) * 5) / 9;
+    }
+
+    for (int i = 0; i <10; i++){
+        cout<<"Fahrenheit: "<<(fahrenheit+10*i)<<" --> Celsius: "<< celsiusBuf[i]<<endl;
+    }
+    return 0;
+}
+
+template <class T>
+void getVal(const char text[], T *val)
+{
+    do
+    {
+        cout << "\t" << text << " = ";
+        if (cin.fail())
+        {
+            cin.clear();
+            cin.ignore();
+        }
+        cin >> *val;
+    } while (cin.fail() || *val <= 0);
+}

Teil_1/5. Felder/Uebung 3 - Sortieren.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+#include <cstdlib>
+
+using namespace std;
+void sortieren(string *namen, int size);
+int main(int argc, char *argv[])
+{
+    string namen[5];
+    cout << "Bitte geben Sie 5 Namen ein:" << endl;
+    for (int i = 0; i < 5; i++)
+    {
+        cout << "Name " << i + 1 << ": ";
+        cin >> namen[i];
+    }
+    sortieren(namen, 5);
+    for(string name:namen)
+        cout<<name<<endl;
+    system("PAUSE");
+    return 0;
+}
+
+void sortieren(string *namen, int size)
+{
+    for (int i = 0; i < size - 1; i++)
+    {
+        for (int j = i + 1; j < size; j++)
+            if (namen[i] > namen[j])
+            {
+                string tempName = namen[i];
+                namen[i] = namen[j];
+                namen[j] = tempName;
+            }
+    }
+}

Teil_1/5. Felder/Uebung 4 - Bubble Sort.cpp

@@ -0,0 +1,35 @@
+#include <iostream>
+#include <stdlib.h>
+#include <time.h>
+
+using namespace std;
+void bubbleSort(int *array, int size)
+{
+    for (int n = size; n > 1; n--)
+        for (int i = 0; i < n - 1; i++)
+            if (array[i] > array[i + 1])
+            {
+                int swap = array[i];
+                array[i] = array[i + 1];
+                array[i + 1] = swap;
+            }
+}
+void printArray(int *array, int size)
+{
+    cout << "->";
+    for (int i = 0; i < size; i++)
+        cout << array[i] << (i == size - 1 ? "" : ";");
+    cout<<"\n\n";
+}
+int main()
+{
+    srand(time(NULL));
+    int numbers[100];
+    for (int i = 0; i < 100; i++)
+    {
+        numbers[i] = rand() % 100 + 1;
+    }
+    printArray(numbers, 100);
+    bubbleSort(numbers, 100);
+    printArray(numbers, 100);
+}