國立暨南國際大學 100 學年度第一學期小考試卷                   (考試時間: 14:10-14:20)

科目名稱：資訊系統 與網路導論		開課系所：資訊工程 學系		任課教師	吳坤熹
系所別：	年級：	學號：	姓名：	考試日期	2011.12.21

1. (10%) Determine whether the following code has syntax errors or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   // Linked-List
   #include <iostream>
   using std::cout;
   using std::endl;
   
   struct record {
       int number;                                      
       record* pNext;                  
   };
   
   void print(record* p)  // pass the pointer by value
   {
       for (; p != NULL; p = p->pNext)
           cout << p->number;
       cout << endl;
   }
   int main()
   {
       record Node1, Node2, Node3, Node4, Node5;
      
       Node1.number = 1; Node1.pNext = NULL;
       Node2.number = 2; Node2.pNext = &Node1;
       Node3.number = 3; Node3.pNext = &Node2;
       Node4.number = 4; Node4.pNext = &Node3;
       Node5.number = 5; Node5.pNext = &Node4;
   
       print(&Node3);    // Will the pointer be changed after this function call?
       print(&Node3);
      
       return 0;
   }
   
   
   
2. (10%) Determine the output of the following code.
    // dynamic memory allocation
   #include <iostream>
   using std::cout;
   using std::endl;
   
   int main()
   {
       int* p = new int[7];
       cout << sizeof(p) << endl;
       delete p;    // See P.203 deleting an array
       cout << sizeof(p) << endl;
   
       return 0;
   }