Exercises : Answer the following Question

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To help solidify your understanding of this hour's lesson, you are encouraged to answer the quiz questions and finish the exercises provided in the Workshop before you move to the next lesson. The answers and hints to the questions and exercises are given in Appendix E, "Answers to Quiz Questions and Exercises."
Quiz

    What are the values represented by the following enum names?

    enum months { Jan, Feb, Mar, Apr,
                  May, Jun, Jul, Aug,
                  Sep, Oct, Nov, Dec };

    What are the values represented by the following enum names?

    enum tag { name1,
               name2 = 10,
               name3,
               name4 };

    Which statements in the following are equivalent in the variable declaration?
        typedef long int BYTE32; BYTE32 x, y, z;
        typedef char *STRING[16]; STRING str1, str2, str3;
        long int x, y, z;
        char *str1[16], *str2[16], *str3[16];
    Can you pass some command-line arguments to a main() function that has the following definition?

    int main(void)
    {
       . . .
    }

Exercises

    Write a program to print out the values represented by the enumerated names declared in Quiz question 2.
    Given the following declarations:

    typedef char WORD;
    typedef int SHORT;
    typedef long LONG;
    typedef float FLOAT;
    typedef double DFLOAT;

    write a program to measure the sizes of the synonyms to the data types.

    Rewrite the program in Listing 18.4. This time, add integers starting at the value of MIN_NUM instead of the value of MAX_NUM.
    Write a program that accepts command-line arguments. If the number of command-line arguments, not including the name of the executable itself, is less than two, print out the usage format of the program and ask the user to reenter the command-line arguments. Otherwise, display all command-line arguments entered by the user.

Related Items

The while Loop

The while Loop

The while statement is also used for looping. Unlike the situation with the for statement, there is only one expression field in the while statement.

The general form of the while statement is

while (expression) {

Question and Answer

Question and Answer

    Q How does a for loop work?

Exercises : Answer the following Question

To help you solidify your understanding of this hour's lesson, you are encouraged to try to answer the quiz questions and finish the exercises provided in the Workshop before you move to the next lesson.

 

Working with the Cast Operator

Playing with the Cast Operator

In C, you can convert one data type to a different one by prefixing the cast operator to the operand.

The general form of the cast operator is

(data-type)x

Question and Answer

Question and Answer

    Q What is the difference between the pre-increment operator and the post-increment operator?