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To access the final exam score of student, we would write |
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Member Selector The expression used to access components of a struct variable. It is formed by using the struct variable name and the member name, separated by a dot (period). |
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The component of a struct accessed by the member selector is treated just like any other variable of the same type. It may be used in an assignment statement, passed as a parameter, and so on. Figure 14-2 shows the struct variable student with the member selector for each member. In this example, some processing has already taken place, so values are stored in some of the components. |
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Let's demonstrate the use of these member selectors. Using our student variable, the following code segment reads in a final exam grade; adds up the program grade, the quiz grade, and the final exam grade; and then assigns a letter grade to the result. |
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cin >> student.finalExam;
grade = student.finalExam + student.programGrade +
student.quizGrade;
if (grade >= 900)
student.courseGrade = A;
else if (grade >= 800)
student.courseGrade = B;
else .
.
. |
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Figure 14-2
Struct Variable student with Member Selectors |
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