CS 1440 Lab 7
· To define a struct
· To use structs in various C++ expressions
Examine the following C++ program that defines and
uses the Student struct described in the prelab.
1. How the struct is defined,
2. Where the struct is defined,
3. How the struct variables are used
a. as function parameters
b. in I/O statements
c. in arithmetic expressions.
/* struct definition BEFORE any use of Student */
double test1, test2, test3;
void get_info(Student &s); /* Student data type already defined */
void print_info(Student s);
Student student1, student2; /* Student data type
already defined */
cout << "Which student info do you wish to see? (1 or 2): ";
cin >> s;
}while ( ! (s==1 || s==2));
if (s == 1) print_info(student1);
void get_info(Student & s) /* Notice reference parameter!! */
cout << "Enter student’s last name: ";
cin >> s.name;
cout << "Enter 3 test scores: ";
cin >> s.test1 >> s.test2 >> s.test3;
s.average = (s.test1 + s.test2 + s.test3) / 3;
cout << "Enter final letter grade: ";
cin >> s.grade;
void print_info(Student s)
cout << "Student: " << s.name << endl;
cout << "\tGrade: " << s.grade << endl;
cout << "\tTests: " << endl;
cout << "\t\tAverage: " << s.average << endl;
cout << "\t\tScores: "
<< s.test1 << ","
<< s.test2 << ","
<< s.test3 << endl;
Make a Lab7 directory in your 1440 directory.
Cut and paste the above program into a file named struct.C in your Lab7 directory.
Modify the program in the following ways:
1. Define a struct “Course” that consists of a department code (like “CS” or “CHE”), a course number (like 1440), and a section number (like 103).
2. Change the Student struct to include 2 courses being taken by the student (these are part time students!)
3. Change the get_info and print_info functions as necessary to accommodate the courses students are taking.