Contents:

• Overview
• Problems to be Submitted

Topic: Usage of the (simpified) vector class
Related Reading: Ch. 4.1 (and 4.3)
Due: Friday, 16 February 2007, 2:10pm

Please make sure you adhere to the policies on academic integrity.

Chapter 4.1 introduces a (simplified) public interface for a vector class. A table of those behaviors is given on page 236 and an animated example of its usage is given as "Example 4.1" on pages 234-235. Our goal in this assignment is to verify that you understand the basic semantics and to have you demonstrate that by working through our own example. You will be responsible for two things:

• Give the correct output displayed by cout
• Give a diagram, when indicated, of the internal state of all vectors. You should use a style similar to that on pages 234-235 of the book.

1. (12 points)

   string csci140 = "B+";
   string csci150 = "B-";
   string math135 = "B";	
   vector<string> grades;
   grades.push_back(csci140);
   grades.push_back(csci150);
   grades.push_back(math135);	
   // DIAGRAM #1 HERE
   
   cout << grades[1] << endl;      // DESCRIBE OUTPUT
   cout << grades.size() << endl;  // DESCRIBE OUTPUT
   grades[1] = "A-";	
   math135 = "A+";
   // DIAGRAM #2 HERE
   
   grades.insert(1, "C");
   grades.insert(3, "A");
   grades.erase(2);
   grades.pop_back();
   cout << grades.size() << endl;  // DESCRIBE OUTPUT
   cout << grades.at(2) << endl;   // DESCRIBE OUTPUT
   cout << grades.at(3) << endl;   // DESCRIBE OUTPUT
   // DIAGRAM #3 HERE
   

2. (8 points)

   vector<double> control;
   int j;
   for (j=3; j<7; j++)
     control.push_back(1.2 * j);
   // DIAGRAM #1 HERE
   
   vector<double> measured(control);
   control.pop_back();
   measured[3] = 5.4;
   // DIAGRAM #2 HERE
   
   control.swap(measured);
   control[1] = 3.3;	
   // DIAGRAM #3 HERE
   
   measured = control;
   measured.pop_back();
   // DIAGRAM #4 HERE