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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. class Parent // Holds the info for each node.
  6. {
  7.     private:
  8.         string name;
  9.         int age;
  10.         string gender; // Will be specified in child class.
  11.         Parent *next;
  12.  
  13.     public:
  14.         Parent(string newname, int newage)
  15.         {
  16.             name = newname;
  17.             age = newage;
  18.         }
  19.  
  20.         void setGender(string myGender)  { gender = myGender; }
  21.         void setNext(Parent *n)  { next = n; }
  22. };
  23.  
  24. class Child : public Parent // Create instances to store name, age, and gender.
  25. {
  26.     public:
  27.         Child(string newname, int newage, string newgender) : Parent(newname, newage)
  28.         {
  29.             setGender(newgender);
  30.         }
  31. };
  32.  
  33. class Group // Linked list containing all Parent/Child.
  34. {
  35.     private:
  36.         int count;
  37.         Parent *top;
  38.         Parent *bottom;
  39.  
  40.     public:
  41.         Group()
  42.         {
  43.             count = 0;
  44.             top = bottom = NULL;
  45.         }
  46.  
  47.         void addChild(); // Defined in the function listed at the top of this post.
  48. };
  49.  
  50. void Group::addChild() // Adding an instance of a child class.
  51. {
  52.     Parent *now = bottom, *temp;
  53.     string name = "Jason", gender = "male";
  54.     int age = 21;
  55.  
  56.     temp == new Child(name, age, gender);
  57.  
  58.     if (count == 0)
  59.     {
  60.         top = bottom = temp;
  61.         temp->setNext(NULL); // Segmentation fault?
  62.         count++;
  63.     }
  64. }
  65.  
  66. int main()
  67. {
  68. 	Group group;
  69.  
  70. 	cout << "Checkpoint 1." << endl;
  71.  
  72. 	group.addChild(); // Segmentation Fault.
  73.  
  74.     cout << "Checkpoint 2." << endl;
  75.  
  76. 	return 0;
  77. }
  78.  
Runtime error #stdin #stdout 0s 3232KB
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Standard input is empty
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Checkpoint 1.
https://ideone.com/v7dohX
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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