One more file PLUS deallocation in main

Author: STProgrammer

4_0_students_linked_list.cpp

@@ -13,6 +13,10 @@ struct listNode {
 
 typedef listNode * studentCollection;
 
+void removeLinkedList(studentCollection &head);
+void addRecord(studentCollection& sc, int stuNum, int gr);
+double averageRecord(studentCollection sc);
+
 int main()
 {
     studentCollection sc = nullptr;
@@ -30,6 +34,8 @@ int main()
     node3->next = nullptr;
     node1 = node2 = node3 = nullptr;
 
+    removeLinkedList(sc);
+
     cin.get();
     return 0;
 
@@ -61,3 +67,18 @@ double averageRecord(studentCollection sc)
     return average;
 }
 
+void removeLinkedList(studentCollection &head)
+{
+
+    listNode * loopPtr = head;
+    listNode * deleteNode;
+
+    while (loopPtr != nullptr)
+    {
+        deleteNode = loopPtr;
+        loopPtr = loopPtr->next;
+        delete deleteNode;
+    }
+    head = nullptr;
+    return;
+}

4_0_variable_length_string.cpp

@@ -33,8 +33,19 @@ int main()
     cout << "String to add: " << strToAdd << endl;
     concatenate(str1, strToAdd);
     cout << "After concatenate: " << str1 << endl;
+
+    for (int i = 0; i < 8; i++)
+    {
+        cout << "index " << i << endl;
+        cout << "char " << str1[i] << endl;
+    }
+
     cout << (void*) str1 << " " << (void*)strToAdd << endl;
 
+    delete[] str;
+    delete[] str1;
+    delete[] strToAdd;
+
     cin.get();
     return 0;
 
@@ -60,6 +71,8 @@ void append(arrayString &str, char ch)
     str = newStr;
 }
 
+
+
 void concatenate(arrayString &str1, arrayString str2)
 {
     int len1 = length(str1);
@@ -79,6 +92,8 @@ void concatenate(arrayString &str1, arrayString str2)
     str1 = newStr;
 }
 
+
+
 int length(arrayString str)
 {
     int len = 0;
@@ -89,3 +104,6 @@ int length(arrayString str)
     return len;
 }
 
+
+
+

4_1_find_modes_variable_list.cpp

@@ -56,6 +56,9 @@ int main()
 
     printModes(modesList);
 
+    delete[] numList;
+    delete[] modesList;
+
 
     cin.get();
     return 0;

4_2_substring.cpp

@@ -28,13 +28,16 @@ int main()
 
 
     int startPos = 3;
-    int len = ;
+    int len = 2;
 
     arrayString newStr = substring(str, startPos, len);
 
     cout << "The string: " << str << endl;
     cout << "The substring: " << newStr << endl;
 
+    delete[] str;
+    delete[] newStr;
+
     cin.get();
     return 0;
 
@@ -45,8 +48,6 @@ arrayString substring(arrayString str, int startPos, int len)
 {
     arrayString newStr = new char[len+1];
 
-    startPos--;
-
     int strLength = length(str);
 
     for (int i = 0; i < len; i++)

4_3_replace_string.cpp

@@ -31,6 +31,10 @@ int main()
     replaceString(source, target, replaceText);
     printf("The result is: %s ", source);
 
+    delete[] source;
+    delete[] target;
+    delete[] replaceText;
+
     cin.get();
     return 0;
 

4_4_string_without_null_terminator.cpp

@@ -42,6 +42,10 @@ int main()
     cout << "\n";
     cout << (void*) str1 << " " << (void*)strToAdd << endl;
 
+    delete[] str;
+    delete[] str1;
+    delete[] strToAdd;
+
     cin.get();
     return 0;
 

4_5_remove_student_record.cpp

@@ -17,7 +17,7 @@ void printNodes(studentCollection sc);
 void addRecord(studentCollection& sc, int studNum, int gr);
 void removeRecord(studentCollection& sc, int studNum);
 double averageRecord(studentCollection sc);
-
+void removeLinkedList(studentCollection &head);
 
 int main()
 {
@@ -35,6 +35,8 @@ int main()
     printNodes(sc);
 
     cout << "The average record is: " << averageRecord(sc) << endl;
+    removeLinkedList(sc);
+
 
     cin.get();
     return 0;
@@ -110,3 +112,20 @@ double averageRecord(studentCollection sc)
     return average;
 }
 
+
+void removeLinkedList(studentCollection &head)
+{
+
+    listNode * loopPtr = head;
+    listNode * deleteNode;
+
+    while (loopPtr != nullptr)
+    {
+        deleteNode = loopPtr;
+        loopPtr = loopPtr->next;
+        delete deleteNode;
+    }
+    head = nullptr;
+    return;
+}
+

4_6-8_linked_list_string.cpp

@@ -17,6 +17,7 @@ char characterAt(stringLinkedList str, int pos);
 void printString(stringLinkedList str);
 void concatenate(stringLinkedList &str1, stringLinkedList str2);
 void removeChars(stringLinkedList &str, int startIdx, int nrOfChars);
+void removeLinkedList(stringLinkedList &head)
 
 int main()
 {
@@ -56,6 +57,9 @@ int main()
     printf("Removed %d characters starting from index %d running removeChars() function:\n", nrOfChars, startIdx);
     printString(str);
 
+    removeLinkedList(str);
+    removeLinkedList(str2);
+
     cin.get();
     return 0;
 }
@@ -202,6 +206,22 @@ void concatenate(stringLinkedList &str1, stringLinkedList str2)
 }
 
 
+void removeLinkedList(stringLinkedList &head)
+{
+
+    listNode * loopPtr = head;
+    listNode * deleteNode;
+
+    while (loopPtr != nullptr)
+    {
+        deleteNode = loopPtr;
+        loopPtr = loopPtr->next;
+        delete deleteNode;
+    }
+    head = nullptr;
+    return;
+}
+
 
 
 

4_9-10_integer_linked_list.cpp

@@ -15,7 +15,7 @@ typedef listNode * intLinkedList;
 void printInteger(intLinkedList integer);
 intLinkedList intToList(int num);
 intLinkedList sumIntLists(intLinkedList integer1, intLinkedList integer2);
-
+void removeLinkedList(intLinkedList &head);
 
 int main()
 {
@@ -32,6 +32,10 @@ int main()
     cout << "\nTheir sum is: ";
     printInteger(sum);
 
+    removeLinkedList(integer1);
+    removeLinkedList(integer2);
+    removeLinkedList(sum);
+
     cin.get();
     return 0;
 
@@ -99,5 +103,20 @@ void printInteger(intLinkedList integer)
     }
 }
 
+void removeLinkedList(intLinkedList &head)
+{
+    listNode * loopPtr = head;
+    listNode * deleteNode;
+
+    while (loopPtr != nullptr)
+    {
+        deleteNode = loopPtr;
+        loopPtr = loopPtr->next;
+        delete deleteNode;
+    }
+    head = nullptr;
+    return;
+}
+